/* ===================================
   Biblioteca dei Protagonisti - Professional Theme
   Unified styling system with clean color palette
   =================================== */

/* FontAwesome CDN - Modern Icons */
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css');

:root {
    /* Background Colors - Clean & Professional */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #FAFAFA;
    --color-bg-tertiary: #F5F5F5;
    
    /* Green - Primary Brand Color */
    --color-green: #10B981;
    --color-green-light: #6EE7B7;
    --color-green-dark: #059669;
    --color-green-darker: #047857;
    
    /* Green Gradients */
    --gradient-green: linear-gradient(135deg, #10B981 0%, #059669 50%, #047857 100%);
    --gradient-green-hover: linear-gradient(135deg, #059669 0%, #047857 50%, #047857 100%);
    --gradient-subtle: linear-gradient(135deg, #FAFAFA 0%, #FFFFFF 25%, #FAFAFA 50%, #FFFFFF 75%, #FAFAFA 100%);
    
    /* Text Colors - Professional Grays */
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #333333;
    --color-text-muted: #6b7280;
    --color-text-light: #9ca3af;
    
    /* Borders - Unified Gray */
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;
    --color-border-dark: #D1D5DB;
    
    /* Accent Colors */
    --color-red: #ef4444;
    --color-slate: #64748b;
    --color-purple: #8b5cf6;
    
    /* Spacing System - Legacy (for gaps) */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    
    /* Granular 8px Spacing Scale - Tokenized */
    --space-0: 0;
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-7: 28px;
    --space-8: 32px;
    --space-9: 36px;
    --space-10: 40px;
    --space-11: 44px;
    --space-12: 48px;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
}

/* ===================================
   Global Resets & Base Styles
   =================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Animated Gradient Background */
.gradient-bg {
    background: var(--gradient-subtle);
    background-size: 400% 400%;
    animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-primary);
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===================================
   Utility Classes
   =================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

.text-green { color: var(--color-green); }
.text-muted { color: var(--color-text-muted); }
.text-light { color: var(--color-text-light); }

.hidden { display: none !important; }

/* ===================================
   Buttons - Unified System
   =================================== */

.btn {
    padding: 0.8rem 2rem;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-primary);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Primary Button - Green Gradient */
.btn-primary {
    background: var(--gradient-green);
    color: white;
    border-color: transparent;
}

.btn-primary:hover:not(:disabled) {
    background: var(--gradient-green-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Secondary Button - White with Green Border */
.btn-secondary {
    background: white;
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-bg-secondary);
    border-color: var(--color-green);
    transform: translateY(-2px);
}

/* Accent Button - Purple/Pink Gradient for Vocal Features */
.btn-accent {
    background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    color: white;
    border-color: transparent;
}

.btn-accent:hover:not(:disabled) {
    background: linear-gradient(135deg, #7c3aed 0%, #db2777 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-bg-secondary);
    border-color: var(--color-text-primary);
}

/* Danger Button */
.btn-danger {
    background: transparent;
    color: var(--color-red);
    border-color: var(--color-red);
}

.btn-danger:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.1);
    transform: translateY(-2px);
}

/* Icon Button */
.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
}

/* Small Button */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Large Button */
.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Full Width Button */
.btn-block {
    width: 100%;
}

/* Sidebar Button (for chat) */
.btn-sidebar {
    width: 100%;
    padding: 0.8rem;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-sidebar:hover {
    background: white;
    border-color: var(--color-text-primary);
    transform: translateY(-2px);
}

/* ===================================
   File Upload Button - Professional Style
   =================================== */

.file-upload {
    position: relative;
    display: inline-block;
    width: 100%;
}

.file-upload-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.file-upload-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: var(--color-bg-secondary);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.file-upload-label:hover {
    background: white;
    border-color: var(--color-green);
    color: var(--color-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.file-upload-icon {
    font-size: 2rem;
    transition: all var(--transition-normal);
}

.file-upload-label:hover .file-upload-icon {
    transform: scale(1.1);
}

.file-upload-hint {
    font-size: 0.9rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

.file-list {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    max-height: 200px;
    overflow-y: auto;
}

.file-item {
    padding: 0.5rem;
    color: var(--color-text-primary);
    border-bottom: 1px solid rgba(245, 245, 245, 0.3);
}

.file-item:last-child {
    border-bottom: none;
}

/* ===================================
   Cards & Panels
   =================================== */

.card {
    background: rgba(255, 255, 255, 0.98);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--color-green);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.card-flat {
    box-shadow: none;
}

.card-flat:hover {
    transform: none;
}

.card-green {
    border-left: 4px solid var(--color-green);
}

/* Persona Card (Chat Sidebar) */
.persona-card {
    background: rgba(245, 245, 245, 0.6);
    backdrop-filter: blur(10px);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

/* Model Card (Dashboard) */
.model-card {
    background: rgba(255, 255, 255, 0.7);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.model-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-green);
    box-shadow: var(--shadow-lg);
}

/* Action Card (Dashboard) */
.action-card {
    background: rgba(255, 255, 255, 0.8);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: clamp(1.5rem, 3vw, 2rem);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    min-height: 180px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.action-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, currentColor, transparent);
    opacity: 0.6;
}

.action-card.accent-green { color: var(--color-green); }
.action-card.accent-red { color: var(--color-red); }
.action-card.accent-slate { color: var(--color-slate); }
.action-card.accent-purple { color: var(--color-purple); }

.action-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: currentColor;
}

.action-icon {
    width: clamp(3.5rem, 8vw, 4rem);
    height: clamp(3.5rem, 8vw, 4rem);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(1.8rem, 4vw, 2rem);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0.4) 100%);
    border: 2px solid currentColor;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.action-card:hover .action-icon {
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 10px 30px currentColor;
}

/* ===================================
   Forms & Inputs
   =================================== */

input,
textarea,
select {
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-normal);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

input::placeholder,
textarea::placeholder {
    color: var(--color-text-light);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

/* Form Group */
.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
}

.label-description {
    display: block;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    font-weight: normal;
    font-style: italic;
    margin-top: 0.2rem;
}

/* ===================================
   Badges & Tags
   =================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-green);
    border: 1px solid var(--color-green);
}

.badge-gray {
    background: var(--color-bg-secondary);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.trait-badge {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    color: var(--color-text-primary);
    transition: all var(--transition-normal);
}

.trait-badge:hover {
    background: var(--color-bg-secondary);
    transform: translateY(-2px);
    border-color: var(--color-green);
}

/* ===================================
   Navbar
   =================================== */

.navbar {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 2px solid var(--color-border);
    padding: 1rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.navbar-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-logo {
    font-size: 1.3rem;
    color: var(--color-text-primary);
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-logo:hover {
    color: var(--color-green);
}

/* ===================================
   Chat Interface Components
   =================================== */

.chat-container {
    display: grid;
    grid-template-columns: 350px 1fr;
    height: 100dvh;
}

.sidebar {
    background: linear-gradient(180deg, rgba(250, 250, 250, 0.5), rgba(255, 255, 255, 0.8));
    backdrop-filter: blur(20px);
    border-right: 2px solid var(--color-border);
    padding: 2rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.chat-pane {
    display: flex;
    flex-direction: column;
    height: 100dvh;
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.messages-container::-webkit-scrollbar {
    width: 8px;
}

.messages-container::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

.messages-container::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

.messages-container::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-dark);
}

/* Message Bubbles */

.message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.message-content {
    max-width: 70%;
    background: rgba(245, 245, 245, 0.6);
    backdrop-filter: blur(10px);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    transition: all var(--transition-normal);
}

.message-content:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.message.user .message-content {
    background: white;
}

.message.assistant .message-content {
    background: rgba(255, 255, 255, 0.95);
}

.message-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-primary);
}

/* Input Bar */
.input-bar {
    background: rgba(245, 245, 245, 0.15);
    backdrop-filter: blur(20px);
    border-top: 2px solid var(--color-border);
    padding: 1.5rem 2rem;
    display: flex;
    gap: 1rem;
    align-items: flex-end;
}

.input-wrapper {
    flex: 1;
}

#messageInput {
    min-height: 50px;
    max-height: 150px;
    resize: none;
}

/* Contact Box - Improved Styling */
.contact-box {
    margin-top: 1.5rem;
    padding: 1rem;
    background: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.contact-box:hover {
    border-color: var(--color-green);
    box-shadow: var(--shadow-md);
}

/* ===================================
   Modals & Overlays
   =================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal {
    background: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    max-width: 500px;
    width: 90%;
    text-align: center;
    animation: slideInUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================================
   Loading & Feedback
   =================================== */

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-green);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    animation: slideInRight 0.3s ease;
}

.toast.error {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--color-red);
    color: var(--color-red);
}

.toast.success {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--color-green);
    color: var(--color-green);
}

/* ===================================
   Animations
   =================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* Animation Utility Classes */
.fade-in-up {
    animation: fadeInUp var(--transition-normal);
}

.slide-in-right {
    animation: slideInRight var(--transition-normal);
}

.slide-in-left {
    animation: slideInLeft var(--transition-normal);
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

.bounce {
    animation: bounce 2s ease-in-out infinite;
}

/* ===================================
   Dashboard Specific Components
   =================================== */

/* Action Grid */
.action-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1rem, 2.5vw, 1.5rem);
    margin-top: var(--space-md);
}

/* Models Grid */
.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
}

/* Usage Widget (Dashboard) */
.usage-widget {
    background: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.usage-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.usage-header h3 {
    font-size: 1.2rem;
    color: var(--color-text-primary);
}

.plan-badge {
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
}

.pro-badge {
    background: var(--gradient-green);
    color: white;
}

.free-badge {
    background: var(--color-bg-secondary);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.usage-stats {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.stat-item {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.stat-icon {
    font-size: 1.5rem;
}

.stat-text {
    flex: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.usage-bar {
    width: 100%;
    height: 8px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.usage-progress {
    height: 100%;
    background: var(--gradient-green);
    transition: width var(--transition-normal);
}

.upgrade-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-green);
    color: white;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.upgrade-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* User Info Components */
.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-chip {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--gradient-green);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.user-name {
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1;
    font-size: 0.9rem;
}

.user-role {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1;
}

.logout-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    text-decoration: none;
}

.logout-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--color-red);
    color: var(--color-red);
    transform: scale(1.05);
}

/* Model Components */
.model-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.model-name {
    font-size: 1.3rem;
    color: var(--color-text-primary);
    font-weight: 700;
}

.model-badge {
    padding: 0.3rem 0.8rem;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.model-info {
    margin: 1rem 0;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.action-title {
    font-weight: 700;
    font-size: clamp(1rem, 2.2vw, 1.1rem);
    color: var(--color-text-primary);
    margin-bottom: 0.3rem;
    line-height: 1.3;
}

.action-desc {
    font-size: clamp(0.8rem, 1.8vw, 0.85rem);
    color: var(--color-text-muted);
    line-height: 1.4;
}

.action-content {
    text-align: center;
    width: 100%;
}

/* ===================================
   Chat Specific Components
   =================================== */

/* Send Button */
.btn-send {
    padding: 0.8rem 2rem;
    background: var(--gradient-green);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-send:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Usage Widget Chat */
.usage-widget-chat {
    background: rgba(245, 245, 245, 0.6);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--color-border);
    padding: 0.75rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.usage-info-chat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.usage-text-chat {
    color: var(--color-text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

.upgrade-link-chat {
    color: var(--color-green);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.upgrade-link-chat:hover {
    color: var(--color-green-dark);
    transform: translateX(3px);
}

/* Chat Header (will be removed but defined for now) */
.chat-header {
    background: rgba(245, 245, 245, 0.6);
    backdrop-filter: blur(20px);
    border-bottom: 2px solid var(--color-border);
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-header h2 {
    font-size: 1.5rem;
    color: var(--color-text-primary);
}

.back-link {
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.back-link:hover {
    color: var(--color-green);
}

/* Traits Section */
.traits-section {
    margin-top: 1rem;
}

.traits-section h3 {
    font-size: 1rem;
    color: var(--color-text-primary);
    margin-bottom: 0.8rem;
}

.traits-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.actions-section {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Subtitle */
.subtitle {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

/* ===================================
   Form Components
   =================================== */

.form-container {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(250, 250, 250, 0.95));
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 3rem;
}

.info-box {
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid var(--color-green);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
}

.info-box h3 {
    color: var(--color-green);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.info-box p,
.info-box ul {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.info-box ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--color-red);
    color: var(--color-red);
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    text-align: center;
}

.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-green);
    color: var(--color-green);
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    text-align: center;
}

/* ===================================
   Panel Components
   =================================== */

.admin-panel,
.user-panel {
    background: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-sm);
}

.admin-panel h2,
.user-panel h2 {
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: clamp(1.5rem, 3vw, 1.8rem);
}

.admin-panel p,
.user-panel p {
    margin-bottom: var(--space-md);
    font-size: clamp(0.9rem, 2vw, 1rem);
    color: var(--color-text-secondary);
}

/* Models Section */
.models-section {
    margin-top: var(--space-lg);
}

.models-section h2 {
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 3rem;
}

.header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.header p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    font-style: italic;
}

/* Logo Navigation */
.logo-nav {
    font-size: 1.3rem;
    color: var(--color-text-primary);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1024px) {
    .chat-container {
        grid-template-columns: 300px 1fr;
    }
}

@media (max-width: 768px) {
    .chat-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
    
    .action-grid {
        grid-template-columns: 1fr;
    }
    
    .models-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 1.5rem;
        --space-xl: 2rem;
    }
    
    .btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .navbar {
        padding: 0.75rem 1rem;
    }
}

/* ===================================
   Utility Classes for Layout
   =================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: var(--space-xl) 0;
}

.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Professional Touches
   =================================== */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus visible for accessibility */
*:focus-visible {
    outline: 2px solid var(--color-green);
    outline-offset: 2px;
}

/* Selection color */
::selection {
    background: var(--color-green-light);
    color: white;
}

/* Link styles */
a {
    color: var(--color-green);
    text-decoration: none;
    transition: all var(--transition-fast);
}

a:hover {
    color: var(--color-green-dark);
}

/* ===================================
   Login & Register Pages
   =================================== */

.login-container,
.register-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.login-content,
.register-content {
    background: var(--color-bg-primary);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 480px;
    text-align: center;
}

.login-content .logo,
.register-content .logo {
    width: 80px;
    height: 80px;
    background: var(--gradient-green);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    font-size: 2.5rem;
    color: white;
}

.login-content h1,
.register-content h1 {
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.login-content .subtitle,
.register-content .subtitle {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    font-size: 0.95rem;
}

.info-box {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-green-light);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-box i {
    color: var(--color-green);
    font-size: 1.2rem;
}

.divider {
    text-align: center;
    margin: var(--space-lg) 0;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    position: relative;
}

.divider::before,
.divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: var(--color-border);
}

.divider::before {
    left: 0;
}

.divider::after {
    right: 0;
}

.register-link,
.back-home {
    margin-top: var(--space-md);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.register-link a,
.back-home a {
    color: var(--color-green);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.register-link a:hover,
.back-home a:hover {
    color: var(--color-green-dark);
}

/* ===================================
   Homepage / Optin Page
   =================================== */

.hero {
    text-align: center;
    padding: var(--space-xl) 0;
    max-width: 900px;
    margin: 0 auto;
}

.hero-content h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.feature {
    text-align: center;
    padding: var(--space-lg);
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-green-light);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.feature h3 {
    margin-bottom: var(--space-sm);
}

.feature p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.pricing-section {
    text-align: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
}

.pricing-section h2 {
    margin-bottom: var(--space-sm);
}

.pricing-section > p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    font-size: 1.1rem;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-card {
    background: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: left;
    transition: all var(--transition-normal);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-green);
}

.plan-badge {
    display: inline-block;
    background: var(--color-green);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
}

.plan-price {
    margin: var(--space-lg) 0;
}

.plan-price .amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.plan-price .period {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.pricing-card ul {
    list-style: none;
    margin: var(--space-lg) 0;
}

.pricing-card ul li {
    padding: var(--space-sm) 0;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pricing-card ul li::before {
    content: '✓';
    color: var(--color-green);
    font-weight: 700;
    font-size: 1.2rem;
}

.cta-section {
    text-align: center;
    margin-top: var(--space-xl);
    padding: var(--space-xl) var(--space-lg);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-lg);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-green);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    padding: var(--space-sm);
}

.back-link:hover {
    color: var(--color-green-dark);
}

/* ===================================
   Chat Sessions & Dashboard
   =================================== */

.new-session-btn {
    width: 100%;
    background: var(--gradient-green);
    color: white;
    border: none;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-xl);
}

.new-session-btn:hover {
    background: var(--gradient-green-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.new-session-btn:active {
    transform: translateY(0);
}

.new-session-btn i {
    font-size: 1.3rem;
}

.sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.session-card {
    background: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.session-card:hover {
    border-color: var(--color-green);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.session-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.session-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.session-date {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.delete-btn {
    background: transparent;
    border: 1px solid var(--color-red);
    color: var(--color-red);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.delete-btn:hover {
    background: var(--color-red);
    color: white;
}

.empty-state {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    margin-top: var(--space-xl);
}

.empty-state-icon {
    font-size: 5rem;
    color: var(--color-border-dark);
    margin-bottom: var(--space-lg);
}

.empty-state h2 {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.empty-state p {
    color: var(--color-text-muted);
    font-size: 1.05rem;
}

/* ===================================
   Chat UI Enhancements
   =================================== */

.persona-card h1 {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.persona-card .subtitle {
    color: var(--color-green);
    font-weight: 600;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.traits-section {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.traits-section h3 {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.traits-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.trait-badge {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-green-dark);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--color-green-light);
}

.contact-box p {
    margin: 0.5rem 0;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-box i {
    color: var(--color-green);
}

.actions-section {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.btn-sidebar {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--color-border);
    background: white;
    color: var(--color-text-primary);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-sidebar:hover {
    border-color: var(--color-green);
    background: rgba(16, 185, 129, 0.05);
    color: var(--color-green);
}

.btn-sidebar.btn-danger {
    border-color: var(--color-red);
    color: var(--color-red);
}

.btn-sidebar.btn-danger:hover {
    background: var(--color-red);
    color: white;
}

.usage-widget-chat {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid var(--color-green-light);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    margin: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.usage-info-chat {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.usage-text-chat {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.usage-text-chat i {
    color: var(--color-green);
}

.upgrade-link-chat {
    background: var(--color-green);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.upgrade-link-chat:hover {
    background: var(--color-green-dark);
    transform: scale(1.05);
}

/* ===================================
   Optin Navbar
   =================================== */

.optin-navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--color-border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.optin-navbar .nav-container {
    justify-content: center;
}

.optin-navbar .nav-actions {
    width: 100%;
    justify-content: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.nav-logo i {
    font-size: 1.5rem;
    color: var(--color-green);
}

.nav-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: nowrap;
}

.nav-actions .btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .nav-logo span {
        font-size: 1rem;
    }
    
    .nav-actions {
        gap: 0.5rem;
    }
    
    .nav-actions .btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}

/* ===================================
   Avatar Video Section
   =================================== */

.avatar-video-section {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    border: 2px solid var(--color-border);
}

.avatar-video-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.avatar-video-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-icon {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--color-green);
    color: white;
    border-color: var(--color-green);
}

.btn-icon.active {
    background: var(--color-green);
    color: white;
    border-color: var(--color-green);
}

.avatar-video-container {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    margin-bottom: var(--space-md);
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.avatar-placeholder:hover {
    opacity: 0.9;
}

.avatar-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.avatar-placeholder p {
    font-size: 1rem;
    margin: 0;
}

#avatarVideo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    background: white;
    cursor: pointer;
}

.avatar-select:focus {
    outline: none;
    border-color: var(--color-green);
}

/* ===================================
   Plan Card - Modern Design
   =================================== */

.plan-card {
    background: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-sm);
}

.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.plan-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.plan-badge-pill {
    padding: 0.4rem 1.2rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.plan-badge-pill.free {
    background: var(--color-green);
    color: white;
}

.plan-badge-pill.pro {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: white;
}

.plan-content-free {
    padding: var(--space-lg) 0;
}

.usage-display {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
}

.usage-icon {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    background: rgba(16, 185, 129, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.usage-icon i {
    font-size: 2.5rem;
    color: var(--color-green);
}

.usage-info {
    flex: 1;
}

.usage-label {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.usage-counter {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1;
}

.plan-content-pro {
    padding: var(--space-xl) 0;
    text-align: center;
}

.pro-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-md);
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pro-icon i {
    font-size: 2.5rem;
    color: white;
}

.pro-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.pro-subtitle {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.plan-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-slate);
    color: white;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-fast);
    margin-top: var(--space-lg);
}

.plan-action-btn.upgrade {
    background: var(--color-green);
}

.plan-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.plan-action-btn.upgrade:hover {
    background: var(--color-green-dark);
}

@media (max-width: 768px) {
    .usage-display {
        flex-direction: column;
        text-align: center;
    }
    
    .usage-counter {
        font-size: 2rem;
    }
}

/* ===================================
   Enhanced Plan Features with Icons
   =================================== */

.plan-features li {
    display: flex !important;
    align-items: center;
    gap: 0.75rem;
}

.plan-features li i {
    color: var(--color-green);
    font-size: 1.1rem;
    min-width: 20px;
    text-align: center;
}

.plan-features li::before {
    display: none !important;
}

.pricing-card.featured {
    border: 3px solid var(--color-green);
    position: relative;
    transform: scale(1.05);
}

.pricing-card.featured::before {
    content: 'Consigliato';
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--gradient-green);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@media (max-width: 768px) {
    .pricing-card.featured {
        transform: scale(1);
    }
}

/* ===================================
   Admin Dashboard
   =================================== */

.admin-search {
    margin-bottom: var(--space-xl);
}

.search-box {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.search-input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.stat-card {
    background: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--color-green);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.users-table-container {
    background: white;
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-border);
    overflow-x: auto;
}

.users-table {
    width: 100%;
    border-collapse: collapse;
}

.users-table thead {
    background: var(--color-bg-secondary);
}

.users-table th {
    padding: var(--space-md);
    text-align: left;
    font-weight: 600;
    color: var(--color-text-primary);
    border-bottom: 2px solid var(--color-border);
}

.users-table td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border-light);
}

.users-table tbody tr:hover {
    background: var(--color-bg-tertiary);
}

.badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-free {
    background: rgba(100, 116, 139, 0.1);
    color: var(--color-slate);
}

.badge-pro {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-green-dark);
    border: 1px solid var(--color-green-light);
}

.badge-admin {
    background: rgba(139, 92, 246, 0.1);
    color: var(--color-purple);
    border: 1px solid var(--color-purple);
    margin-left: 0.5rem;
}

.status-active {
    color: var(--color-green);
}

.status-canceled {
    color: var(--color-red);
}

.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-action {
    padding: 0.4rem 0.8rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.btn-free {
    background: rgba(100, 116, 139, 0.1);
    color: var(--color-slate);
    border: 1px solid var(--color-slate);
}

.btn-free:hover {
    background: var(--color-slate);
    color: white;
}

.btn-pro {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-green-dark);
    border: 1px solid var(--color-green);
}

.btn-pro:hover {
    background: var(--color-green);
    color: white;
}

.btn-impersonate {
    background: rgba(139, 92, 246, 0.1);
    color: #7c3aed;
    border: 1px solid #8b5cf6;
    text-decoration: none;
}

.btn-impersonate:hover {
    background: #8b5cf6;
    color: white;
}

.pagination {
    margin-top: var(--space-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
}

.page-info {
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* ===================================
   Floating Voice Button (Mobile Only)
   =================================== */

.floating-voice-btn {
    display: none; /* Nascosto su desktop */
}

@media (max-width: 768px) {
    .floating-voice-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        position: fixed;
        bottom: 90px;
        right: 20px;
        width: 60px;
        height: 60px;
        background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
        color: white;
        border-radius: 50%;
        box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
        font-size: 1.5rem;
        z-index: 1000;
        transition: all 0.3s ease;
        text-decoration: none;
        border: 3px solid white;
    }
    
    .floating-voice-btn:hover {
        transform: scale(1.1);
        box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
    }
    
    .floating-voice-btn:active {
        transform: scale(0.95);
    }
    
    .floating-voice-btn i {
        animation: pulse 2s infinite;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* ===================================
   Mobile Responsive - Dashboard Buttons
   =================================== */

@media (max-width: 768px) {
    .model-actions {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
    }
    
    .model-actions .btn {
        width: 100%;
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
        justify-content: center;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
    
    .model-actions .btn i {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .model-actions .btn {
        padding: 1rem 1.5rem;
        font-size: 1.05rem;
        font-weight: 600;
    }
    
    .model-actions .btn i {
        font-size: 1.2rem;
    }
}

/* ===================================
   PROFESSIONAL STARTUP ENHANCEMENTS
   Enhanced Design System 2025
   =================================== */

/* Granular 8px Spacing System - Complete Scale */
.m-0 { margin: var(--space-0); }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-5 { margin: var(--space-5); }
.m-6 { margin: var(--space-6); }
.m-7 { margin: var(--space-7); }
.m-8 { margin: var(--space-8); }
.m-9 { margin: var(--space-9); }
.m-10 { margin: var(--space-10); }
.m-11 { margin: var(--space-11); }
.m-12 { margin: var(--space-12); }

.mt-0 { margin-top: var(--space-0); }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-7 { margin-top: var(--space-7); }
.mt-8 { margin-top: var(--space-8); }
.mt-9 { margin-top: var(--space-9); }
.mt-10 { margin-top: var(--space-10); }
.mt-11 { margin-top: var(--space-11); }
.mt-12 { margin-top: var(--space-12); }

.mb-0 { margin-bottom: var(--space-0); }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-7 { margin-bottom: var(--space-7); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-9 { margin-bottom: var(--space-9); }
.mb-10 { margin-bottom: var(--space-10); }
.mb-11 { margin-bottom: var(--space-11); }
.mb-12 { margin-bottom: var(--space-12); }

.ml-0 { margin-left: var(--space-0); }
.ml-1 { margin-left: var(--space-1); }
.ml-2 { margin-left: var(--space-2); }
.ml-3 { margin-left: var(--space-3); }
.ml-4 { margin-left: var(--space-4); }
.ml-5 { margin-left: var(--space-5); }
.ml-6 { margin-left: var(--space-6); }
.ml-7 { margin-left: var(--space-7); }
.ml-8 { margin-left: var(--space-8); }
.ml-9 { margin-left: var(--space-9); }
.ml-10 { margin-left: var(--space-10); }
.ml-11 { margin-left: var(--space-11); }
.ml-12 { margin-left: var(--space-12); }

.mr-0 { margin-right: var(--space-0); }
.mr-1 { margin-right: var(--space-1); }
.mr-2 { margin-right: var(--space-2); }
.mr-3 { margin-right: var(--space-3); }
.mr-4 { margin-right: var(--space-4); }
.mr-5 { margin-right: var(--space-5); }
.mr-6 { margin-right: var(--space-6); }
.mr-7 { margin-right: var(--space-7); }
.mr-8 { margin-right: var(--space-8); }
.mr-9 { margin-right: var(--space-9); }
.mr-10 { margin-right: var(--space-10); }
.mr-11 { margin-right: var(--space-11); }
.mr-12 { margin-right: var(--space-12); }

.p-0 { padding: var(--space-0); }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-7 { padding: var(--space-7); }
.p-8 { padding: var(--space-8); }
.p-9 { padding: var(--space-9); }
.p-10 { padding: var(--space-10); }
.p-11 { padding: var(--space-11); }
.p-12 { padding: var(--space-12); }

.pt-0 { padding-top: var(--space-0); }
.pt-1 { padding-top: var(--space-1); }
.pt-2 { padding-top: var(--space-2); }
.pt-3 { padding-top: var(--space-3); }
.pt-4 { padding-top: var(--space-4); }
.pt-5 { padding-top: var(--space-5); }
.pt-6 { padding-top: var(--space-6); }
.pt-7 { padding-top: var(--space-7); }
.pt-8 { padding-top: var(--space-8); }
.pt-9 { padding-top: var(--space-9); }
.pt-10 { padding-top: var(--space-10); }
.pt-11 { padding-top: var(--space-11); }
.pt-12 { padding-top: var(--space-12); }

.pb-0 { padding-bottom: var(--space-0); }
.pb-1 { padding-bottom: var(--space-1); }
.pb-2 { padding-bottom: var(--space-2); }
.pb-3 { padding-bottom: var(--space-3); }
.pb-4 { padding-bottom: var(--space-4); }
.pb-5 { padding-bottom: var(--space-5); }
.pb-6 { padding-bottom: var(--space-6); }
.pb-7 { padding-bottom: var(--space-7); }
.pb-8 { padding-bottom: var(--space-8); }
.pb-9 { padding-bottom: var(--space-9); }
.pb-10 { padding-bottom: var(--space-10); }
.pb-11 { padding-bottom: var(--space-11); }
.pb-12 { padding-bottom: var(--space-12); }

.pl-0 { padding-left: var(--space-0); }
.pl-1 { padding-left: var(--space-1); }
.pl-2 { padding-left: var(--space-2); }
.pl-3 { padding-left: var(--space-3); }
.pl-4 { padding-left: var(--space-4); }
.pl-5 { padding-left: var(--space-5); }
.pl-6 { padding-left: var(--space-6); }
.pl-7 { padding-left: var(--space-7); }
.pl-8 { padding-left: var(--space-8); }
.pl-9 { padding-left: var(--space-9); }
.pl-10 { padding-left: var(--space-10); }
.pl-11 { padding-left: var(--space-11); }
.pl-12 { padding-left: var(--space-12); }

.pr-0 { padding-right: var(--space-0); }
.pr-1 { padding-right: var(--space-1); }
.pr-2 { padding-right: var(--space-2); }
.pr-3 { padding-right: var(--space-3); }
.pr-4 { padding-right: var(--space-4); }
.pr-5 { padding-right: var(--space-5); }
.pr-6 { padding-right: var(--space-6); }
.pr-7 { padding-right: var(--space-7); }
.pr-8 { padding-right: var(--space-8); }
.pr-9 { padding-right: var(--space-9); }
.pr-10 { padding-right: var(--space-10); }
.pr-11 { padding-right: var(--space-11); }
.pr-12 { padding-right: var(--space-12); }

/* Axis Utilities - Horizontal & Vertical */
.mx-0 { margin-left: var(--space-0); margin-right: var(--space-0); }
.mx-1 { margin-left: var(--space-1); margin-right: var(--space-1); }
.mx-2 { margin-left: var(--space-2); margin-right: var(--space-2); }
.mx-3 { margin-left: var(--space-3); margin-right: var(--space-3); }
.mx-4 { margin-left: var(--space-4); margin-right: var(--space-4); }
.mx-5 { margin-left: var(--space-5); margin-right: var(--space-5); }
.mx-6 { margin-left: var(--space-6); margin-right: var(--space-6); }
.mx-7 { margin-left: var(--space-7); margin-right: var(--space-7); }
.mx-8 { margin-left: var(--space-8); margin-right: var(--space-8); }
.mx-9 { margin-left: var(--space-9); margin-right: var(--space-9); }
.mx-10 { margin-left: var(--space-10); margin-right: var(--space-10); }
.mx-11 { margin-left: var(--space-11); margin-right: var(--space-11); }
.mx-12 { margin-left: var(--space-12); margin-right: var(--space-12); }
.mx-auto { margin-left: auto; margin-right: auto; }

.my-0 { margin-top: var(--space-0); margin-bottom: var(--space-0); }
.my-1 { margin-top: var(--space-1); margin-bottom: var(--space-1); }
.my-2 { margin-top: var(--space-2); margin-bottom: var(--space-2); }
.my-3 { margin-top: var(--space-3); margin-bottom: var(--space-3); }
.my-4 { margin-top: var(--space-4); margin-bottom: var(--space-4); }
.my-5 { margin-top: var(--space-5); margin-bottom: var(--space-5); }
.my-6 { margin-top: var(--space-6); margin-bottom: var(--space-6); }
.my-7 { margin-top: var(--space-7); margin-bottom: var(--space-7); }
.my-8 { margin-top: var(--space-8); margin-bottom: var(--space-8); }
.my-9 { margin-top: var(--space-9); margin-bottom: var(--space-9); }
.my-10 { margin-top: var(--space-10); margin-bottom: var(--space-10); }
.my-11 { margin-top: var(--space-11); margin-bottom: var(--space-11); }
.my-12 { margin-top: var(--space-12); margin-bottom: var(--space-12); }

.px-0 { padding-left: var(--space-0); padding-right: var(--space-0); }
.px-1 { padding-left: var(--space-1); padding-right: var(--space-1); }
.px-2 { padding-left: var(--space-2); padding-right: var(--space-2); }
.px-3 { padding-left: var(--space-3); padding-right: var(--space-3); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-5 { padding-left: var(--space-5); padding-right: var(--space-5); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.px-7 { padding-left: var(--space-7); padding-right: var(--space-7); }
.px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }
.px-9 { padding-left: var(--space-9); padding-right: var(--space-9); }
.px-10 { padding-left: var(--space-10); padding-right: var(--space-10); }
.px-11 { padding-left: var(--space-11); padding-right: var(--space-11); }
.px-12 { padding-left: var(--space-12); padding-right: var(--space-12); }

.py-0 { padding-top: var(--space-0); padding-bottom: var(--space-0); }
.py-1 { padding-top: var(--space-1); padding-bottom: var(--space-1); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-5 { padding-top: var(--space-5); padding-bottom: var(--space-5); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-7 { padding-top: var(--space-7); padding-bottom: var(--space-7); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-9 { padding-top: var(--space-9); padding-bottom: var(--space-9); }
.py-10 { padding-top: var(--space-10); padding-bottom: var(--space-10); }
.py-11 { padding-top: var(--space-11); padding-bottom: var(--space-11); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }

/* Subtle Background Animations - Not Intrusive */
.page-gradient-bg {
    background: linear-gradient(180deg, 
        rgba(255, 255, 255, 1) 0%, 
        rgba(250, 250, 250, 0.5) 50%,
        rgba(255, 255, 255, 1) 100%);
    background-size: 100% 200%;
    animation: subtleGradientShift 15s ease infinite;
}

@keyframes subtleGradientShift {
    0%, 100% { background-position: 0% 0%; }
    50% { background-position: 0% 100%; }
}

/* ========== SCROLL FIX DEFINITIVO - MOBILE PERFECT ========== */
html {
    overflow-x: hidden;
    width: 100%;
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch; /* iOS smooth scroll */
    width: 100%;
    max-width: 100vw;
    min-height: 100vh;
}

/* Floating Shapes Layer - Separate Fixed Layer (NO body lock) */
.floating-shapes-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.floating-shapes-layer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(16, 185, 129, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(100, 116, 139, 0.02) 0%, transparent 50%);
    animation: floatShapesSmooth 20s ease-in-out infinite;
}

@keyframes floatShapesSmooth {
    0%, 100% { transform: translate(0, 0) scale(1.05); }
    33% { transform: translate(2%, -2%) scale(1.08); }
    66% { transform: translate(-2%, 2%) scale(1.05); }
}

/* Page content wrapper - ensure proper z-index */
.page-content {
    position: relative;
    z-index: 1;
}

/* ========== MICRO-INTERACTIONS LAYER - PREMIUM UX ========== */

/* Transition tokens per consistency */
:root {
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Glassmorphism Effect - Modern UI */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition-base);
}

.glass:hover {
    background: rgba(255, 255, 255, 0.85);
    border-color: rgba(255, 255, 255, 0.5);
}

.glass-strong {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
}

/* Micro Hover Effects - Elegant & Subtle */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.hover-lift:active {
    transform: translateY(-2px);
}

.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.hover-scale {
    transition: transform var(--transition-base);
}

.hover-scale:hover {
    transform: scale(1.02);
}

.hover-scale:active {
    transform: scale(0.98);
}

/* Pulse Animation - Badge, Notification */
.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.pulse-ring {
    animation: pulseRing 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulseRing {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

/* Shimmer Effect - Loading, Premium */
.shimmer {
    background: linear-gradient(90deg, 
        rgba(255,255,255,0) 0%, 
        rgba(255,255,255,0.8) 50%, 
        rgba(255,255,255,0) 100%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Fade In Animations */
.fade-in {
    animation: fadeIn 0.5s var(--transition-base);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in-fast {
    animation: fadeIn 0.3s var(--transition-fast);
}

.fade-in-slow {
    animation: fadeIn 0.8s var(--transition-slow);
}

/* Slide In Animations */
.slide-in-left {
    animation: slideInLeft 0.4s var(--transition-base);
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

.slide-in-right {
    animation: slideInRight 0.4s var(--transition-base);
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Badge Animations */
.badge-new {
    position: relative;
}

.badge-new::after {
    content: 'NEW';
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--gradient-green);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.2rem 0.4rem;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
    animation: badgeBounce 2s infinite;
}

@keyframes badgeBounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Focus States - Accessibility */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Smooth Transitions - Respect Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Text Gradient Effects - Startup Style */
.text-gradient {
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-green {
    background: var(--gradient-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Grid Layout Utilities - Mobile First */
.auto-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    gap: var(--space-lg);
}

.auto-grid-lg {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
    gap: var(--space-xl);
}

/* Professional Card Hover - Startup Effect */
.card-startup {
    background: white;
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.card-startup::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-green);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card-startup:hover {
    border-color: var(--color-green-light);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.card-startup:hover::before {
    opacity: 1;
}

/* Loading States - Professional */
.skeleton {
    background: linear-gradient(90deg, 
        var(--color-bg-secondary) 0%, 
        var(--color-bg-tertiary) 50%, 
        var(--color-bg-secondary) 100%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Status Indicators - Modern UI */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.status-dot.active {
    background: var(--color-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    animation: statusPulse 2s ease-in-out infinite;
}

.status-dot.inactive {
    background: var(--color-text-light);
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Typography Enhancements - Professional */
.text-display {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.text-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 500;
    line-height: 1.5;
    color: var(--color-text-muted);
}

.text-small {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Reduced Motion Support - Accessibility First */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High Contrast Support */
@media (prefers-contrast: high) {
    :root {
        --color-border: #000000;
        --color-text-muted: #000000;
    }
}

/* Dark Mode Preparation - Future Ready */
@media (prefers-color-scheme: dark) {
    /* Ready for dark mode implementation */
}

/* ===================================
   Mobile-First Responsive Enhancements
   =================================== */

@media (min-width: 640px) {
    .sm\:grid-2 { grid-template-columns: repeat(2, 1fr); }
    .sm\:flex-row { flex-direction: row; }
}

@media (min-width: 768px) {
    .md\:grid-3 { grid-template-columns: repeat(3, 1fr); }
    .md\:block { display: block; }
    .md\:flex { display: flex; }
}

@media (min-width: 1024px) {
    .lg\:grid-4 { grid-template-columns: repeat(4, 1fr); }
    .lg\:w-1\/2 { width: 50%; }
}

@media (min-width: 1280px) {
    .xl\:max-w-7xl { max-width: 1280px; }
}

/* Mobile Touch Improvements */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .card,
    .model-card,
    .action-card {
        -webkit-tap-highlight-color: rgba(16, 185, 129, 0.1);
    }
    
    /* Larger touch targets on mobile */
    .btn {
        min-height: 48px;
        min-width: 48px;
    }
}

/* Print Styles - Professional */
@media print {
    .navbar,
    .btn,
    .floating-voice-btn,
    .sidebar {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .card,
    .modal,
    .message-content {
        border: 1px solid #000;
        box-shadow: none;
    }
}

/* ===================================
   Demo Chat Styles - Startup Style
   =================================== */

/* Settings Screen */
.settings-screen {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, #f5f5f5 0%, #e5e7eb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.settings-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.settings-card {
    background: white;
    border-radius: 24px;
    padding: clamp(2rem, 5vw, 3rem);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    max-width: 500px;
    width: 90%;
    animation: slideInUp 0.5s ease;
}

.settings-card h1 {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.settings-card h1 i {
    color: var(--color-green);
    font-size: 0.4em;
    vertical-align: middle;
    margin-right: 0.25em;
}

.settings-card p {
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
}

.setting-item {
    margin-bottom: 1.5rem;
}

.setting-item label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.setting-item i {
    color: var(--color-green);
}

.setting-item select,
.setting-item input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.setting-item select:focus,
.setting-item input:focus {
    outline: none;
    border-color: var(--color-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.start-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--color-green);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.start-btn:hover {
    background: #0f9d70;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

/* Chat Screen */
.chat-screen {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, #f5f5f5 0%, #e5e7eb 100%);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.chat-screen.active {
    opacity: 1;
    pointer-events: all;
}

.exit-btn {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    width: 48px;
    height: 48px;
    background: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    z-index: 10;
}

.exit-btn:hover {
    background: var(--color-green);
    color: white;
    transform: scale(1.1);
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 5rem 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    scrollbar-width: thin;
    scrollbar-color: var(--color-green) transparent;
}

.messages-container::-webkit-scrollbar {
    width: 8px;
}

.messages-container::-webkit-scrollbar-track {
    background: transparent;
}

.messages-container::-webkit-scrollbar-thumb {
    background: var(--color-green);
    border-radius: 4px;
}

/* Message Styles */
.message {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    opacity: 1 !important;
}

.message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    min-width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.message.user .message-avatar {
    background: linear-gradient(135deg, var(--color-green), #0f9d70);
    color: white;
}

.message.assistant .message-avatar {
    background: white;
    color: var(--color-green);
}

.message-bubble {
    background: white;
    border-radius: 20px;
    padding: 1rem 1.25rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    max-width: 70%;
    opacity: 1 !important;
}

.message.user .message-bubble {
    background: linear-gradient(135deg, var(--color-green), #0f9d70);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.assistant .message-bubble {
    border-bottom-left-radius: 4px;
}

.message-text {
    font-size: 1rem;
    line-height: 1.6;
    word-wrap: break-word;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-green);
    animation: typingBounce 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingBounce {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

/* Controls Bar */
.controls-bar {
    background: white;
    padding: 1.5rem;
    border-top: 1px solid #e5e7eb;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.04);
}

.control-btn {
    padding: 0.75rem 1.5rem;
    background: #f5f5f5;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.control-btn:hover {
    background: #e5e7eb;
    transform: translateY(-2px);
}

.control-btn.primary {
    background: var(--color-green);
    color: white;
}

.control-btn.primary:hover {
    background: #0f9d70;
}

.speed-control {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
}

.speed-control span {
    color: var(--color-text-secondary);
}

.speed-control input[type="range"] {
    width: 100px;
    accent-color: var(--color-green);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Particles Background */
.particles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    background: rgba(16, 185, 129, 0.15);
    border-radius: 50%;
    animation: floatParticle linear infinite;
}

@keyframes floatParticle {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-10vh) rotate(360deg);
        opacity: 0;
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .message-bubble {
        max-width: 85%;
    }
    
    .controls-bar {
        flex-wrap: wrap;
        gap: 0.75rem;
    }
    
    .speed-control {
        width: 100%;
        margin-left: 0;
        justify-content: center;
    }
    
    .control-btn {
        flex: 1;
        min-width: 0;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .particle {
        animation: none;
        opacity: 0.1;
    }
    
    .typing-dot {
        animation: none;
    }
}