/* =====================================================
   Prompt Center - Premium Clean Theme CSS
   Responsive Design for Mobile, Tablet & Desktop
   ===================================================== */

/* CSS Custom Properties (Design Tokens) */
:root {
    /* Primary Colors - Modern Indigo/Purple */
    --primary-50: #EEF2FF;
    --primary-100: #E0E7FF;
    --primary-200: #C7D2FE;
    --primary-300: #A5B4FC;
    --primary-400: #818CF8;
    --primary-500: #6366F1;
    --primary-600: #4F46E5;
    --primary-700: #4338CA;
    --primary-800: #3730A3;
    --primary-900: #312E81;

    /* Accent Colors - Vibrant Gradients */
    --accent-purple: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --accent-green: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --accent-orange: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-blue: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --accent-pink: linear-gradient(135deg, #fa709a 0%, #fee140 100%);

    /* Neutral Colors - Cleaner Palette */
    --gray-50: #FAFAFA;
    --gray-100: #F4F4F5;
    --gray-200: #E4E4E7;
    --gray-300: #D4D4D8;
    --gray-400: #A1A1AA;
    --gray-500: #71717A;
    --gray-600: #52525B;
    --gray-700: #3F3F46;
    --gray-800: #27272A;
    --gray-900: #18181B;

    /* Semantic Colors - Softer Tones */
    --success-50: #ECFDF5;
    --success-100: #D1FAE5;
    --success-500: #10B981;
    --success-600: #059669;
    --error-50: #FEF2F2;
    --error-100: #FEE2E2;
    --error-500: #EF4444;
    --error-600: #DC2626;
    --warning-50: #FFFBEB;
    --warning-100: #FEF3C7;
    --warning-500: #F59E0B;
    --warning-600: #D97706;
    --info-50: #EFF6FF;
    --info-100: #DBEAFE;
    --info-500: #3B82F6;
    --info-600: #2563EB;

    /* Typography */
    --font-thai: 'IBM Plex Sans Thai', sans-serif;
    --font-english: 'Inter', sans-serif;
    --font-family: var(--font-thai), var(--font-english);

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Border Radius - More Rounded */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Enhanced Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.08), 0 8px 10px -6px rgb(0 0 0 / 0.04);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);
    --shadow-colored: 0 10px 30px -5px rgba(99, 102, 241, 0.2);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-bounce: 300ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Layout */
    --container-max: 1280px;
    --navbar-height: 72px;

    /* Theme Variables (Default: Glass/Light) */
    --navbar-bg: rgba(255, 255, 255, 0.95);
    --navbar-text: var(--gray-600);
    --navbar-text-hover: var(--primary-600);
    --navbar-border: rgba(0, 0, 0, 0.05);
    --navbar-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
    --hero-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --brand-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);

    /* Page Theme Variables (Default: Light) */
    --page-bg: var(--gray-50);
    --page-text: var(--gray-800);
    --page-text-muted: var(--gray-500);
    --card-bg: #ffffff;
    --card-border: rgba(0, 0, 0, 0.04);
    --card-shadow: var(--shadow-md);
    --footer-bg: var(--gray-900);
    --footer-text: var(--gray-400);
    --input-bg: #ffffff;
    --input-border: var(--gray-300);
}

/* =====================================================
   Theme: Purple Gradient
   ===================================================== */
[data-theme="purple"] {
    --navbar-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --navbar-text: rgba(255, 255, 255, 0.9);
    --navbar-text-hover: #ffffff;
    --navbar-border: transparent;
    --navbar-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
    --hero-gradient: linear-gradient(135deg, #764ba2 0%, #f093fb 100%);
    --brand-gradient: linear-gradient(135deg, #ffffff 0%, #e0e7ff 100%);

    /* Page colors - Light purple tint */
    --page-bg: linear-gradient(180deg, #f5f3ff 0%, #faf5ff 50%, #fdf4ff 100%);
    --card-bg: rgba(255, 255, 255, 0.95);
    --card-border: rgba(139, 92, 246, 0.1);
    --card-shadow: 0 4px 20px rgba(139, 92, 246, 0.08);
}

/* Footer Brand Override for Purple Theme (Visible on White BG) */
[data-theme="purple"] .footer-brand {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =====================================================
   Theme: Dark Navy
   ===================================================== */
[data-theme="dark"] {
    --navbar-bg: #1e293b;
    --navbar-text: rgba(255, 255, 255, 0.9);
    --navbar-text-hover: #ffffff;
    --navbar-border: rgba(255, 255, 255, 0.1);
    --navbar-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --hero-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --brand-gradient: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);

    /* Page colors - Dark mode */
    --page-bg: #020617;
    --page-text: #f1f5f9;
    --page-text-muted: #94a3b8;
    --card-bg: #1e293b;
    --card-border: rgba(255, 255, 255, 0.1);
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    --footer-bg: #0f172a;
    --footer-text: #94a3b8;
    --input-bg: #0f172a;
    --input-border: #334155;

    /* Text Colors - Inverted for Dark Mode */
    --gray-50: #1e293b;
    --gray-100: #334155;
    --gray-200: #475569;
    --gray-300: #64748b;
    --gray-400: #94a3b8;
    --gray-500: #cbd5e1;
    --gray-600: #e2e8f0;
    /* Lighter for readability */
    --gray-700: #f1f5f9;
    /* Near white for headings */
    --gray-800: #f8fafc;
    --gray-900: #ffffff;

    /* Primary Colors - Lighter for Dark BG */
    --primary-50: #1e1b4b;
    --primary-100: #312e81;
    --primary-500: #6366f1;
    --primary-600: #818cf8;
    /* Lighter indigo */
    --primary-700: #a5b4fc;
    /* Very light indigo for headings */
    --primary-800: #c7d2fe;
    /* Pale indigo for text on dark bg */
    --primary-900: #e0e7ff;
    /* Almost white indigo */
}

/* Dark Theme Component Overrides */
[data-theme="dark"] .card,
[data-theme="dark"] .prompt-card,
[data-theme="dark"] .prompt-detail,
[data-theme="dark"] .comments-section,
[data-theme="dark"] .bookmark-card {
    background: var(--card-bg);
    border-color: var(--card-border);
    color: var(--page-text);
}

[data-theme="dark"] .card-body,
[data-theme="dark"] .card-footer {
    background: transparent;
    border-color: var(--card-border);
}

[data-theme="dark"] .prompt-card-title,
[data-theme="dark"] .prompt-card-title a,
[data-theme="dark"] .bookmark-title,
[data-theme="dark"] .bookmark-title a,
[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4 {
    color: var(--gray-900);
}

[data-theme="dark"] .prompt-card-content,
[data-theme="dark"] .prompt-card-meta,
[data-theme="dark"] .bookmark-excerpt,
[data-theme="dark"] .bookmark-meta {
    color: var(--gray-500);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] textarea,
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="email"],
[data-theme="dark"] input[type="password"],
[data-theme="dark"] input[type="search"] {
    background: var(--input-bg);
    border-color: var(--input-border);
    color: var(--page-text);
}

[data-theme="dark"] .form-control::placeholder,
[data-theme="dark"] textarea::placeholder,
[data-theme="dark"] input::placeholder {
    color: var(--gray-400);
}

[data-theme="dark"] .stat-card {
    background: var(--card-bg);
    border-color: var(--card-border);
}

[data-theme="dark"] .stat-value,
[data-theme="dark"] .stat-label {
    color: var(--page-text);
}

[data-theme="dark"] .user-dropdown-menu,
[data-theme="dark"] .theme-dropdown-menu {
    background: var(--card-bg);
    border-color: var(--card-border);
}

[data-theme="dark"] .user-dropdown-menu a,
[data-theme="dark"] .theme-dropdown-menu button {
    color: var(--page-text);
}

[data-theme="dark"] .user-dropdown-menu a:hover,
[data-theme="dark"] .theme-dropdown-menu button:hover {
    background: var(--gray-100);
}

[data-theme="dark"] .user-dropdown-btn {
    background: var(--card-bg);
    border-color: var(--card-border);
    color: var(--page-text);
}

[data-theme="dark"] .badge {
    color: var(--page-text);
}

[data-theme="dark"] .empty-state {
    color: var(--gray-400);
}

[data-theme="dark"] .empty-state-title,
[data-theme="dark"] .empty-state-text {
    color: var(--gray-400);
}

[data-theme="dark"] .page-title {
    color: var(--page-text);
}

[data-theme="dark"] .dashboard-welcome {
    color: var(--page-text);
}

[data-theme="dark"] table {
    color: var(--page-text);
}

[data-theme="dark"] th {
    background: var(--gray-100);
    color: var(--page-text);
}

[data-theme="dark"] td {
    border-color: var(--card-border);
}

[data-theme="dark"] .prompt-content-box {
    background: var(--gray-100);
    color: var(--page-text);
}

[data-theme="dark"] .prompt-detail-header,
[data-theme="dark"] .prompt-detail-content,
[data-theme="dark"] .prompt-detail-actions {
    border-color: var(--card-border);
}

[data-theme="dark"] .prompt-detail-title {
    color: var(--page-text);
}

[data-theme="dark"] .prompt-detail-meta {
    color: var(--gray-500);
}

[data-theme="dark"] .social-actions {
    background: var(--gray-100);
    border-color: var(--card-border);
}

[data-theme="dark"] .social-btn {
    background: var(--card-bg);
    border-color: var(--card-border);
    color: var(--gray-500);
}

[data-theme="dark"] .comment-item {
    border-color: var(--card-border);
}

[data-theme="dark"] .comment-author {
    color: var(--page-text);
}

[data-theme="dark"] .comment-content {
    color: var(--gray-500);
}

[data-theme="dark"] .comment-form textarea {
    background: var(--input-bg);
    border-color: var(--input-border);
    color: var(--page-text);
}

[data-theme="dark"] .admin-nav a {
    background: var(--card-bg);
    border-color: var(--card-border);
    color: var(--page-text);
}

[data-theme="dark"] .chart-card {
    background: var(--card-bg);
    border-color: var(--card-border);
}

[data-theme="dark"] .chart-title {
    color: var(--page-text);
}

[data-theme="dark"] .rank-item {
    background: var(--gray-100);
}

[data-theme="dark"] .rank-title {
    color: var(--page-text);
}

[data-theme="dark"] .smart-prompt-modal {
    background: var(--card-bg);
}

[data-theme="dark"] .smart-prompt-header h3 {
    color: var(--page-text);
}

[data-theme="dark"] .smart-prompt-field label {
    color: var(--page-text);
}

[data-theme="dark"] .smart-prompt-field input {
    background: var(--input-bg);
    border-color: var(--input-border);
    color: var(--page-text);
}

/* Dark Theme Button Overrides */
[data-theme="dark"] .btn-secondary {
    background: var(--gray-100);
    border-color: var(--gray-200);
    color: var(--page-text);
}

[data-theme="dark"] .btn-secondary:hover {
    background: var(--gray-200);
    border-color: var(--gray-300);
    color: var(--page-text);
}

[data-theme="dark"] .btn-outline {
    color: var(--primary-600);
    border-color: var(--primary-500);
}

[data-theme="dark"] .prompt-card-footer {
    background: var(--gray-100);
    border-color: var(--card-border);
}

/* =====================================================
   Theme: Teal Gradient
   ===================================================== */
[data-theme="teal"] {
    --navbar-bg: linear-gradient(135deg, #0d9488 0%, #0891b2 100%);
    --navbar-text: rgba(255, 255, 255, 0.9);
    --navbar-text-hover: #ffffff;
    --navbar-border: transparent;
    --navbar-shadow: 0 4px 20px rgba(13, 148, 136, 0.3);
    --hero-gradient: linear-gradient(135deg, #0891b2 0%, #06b6d4 50%, #22d3ee 100%);
    --brand-gradient: linear-gradient(135deg, #ffffff 0%, #ccfbf1 100%);

    /* Page colors - Light teal tint */
    --page-bg: linear-gradient(180deg, #f0fdfa 0%, #ecfeff 50%, #f0f9ff 100%);
    --card-bg: rgba(255, 255, 255, 0.95);
    --card-border: rgba(20, 184, 166, 0.1);
    --card-shadow: 0 4px 20px rgba(20, 184, 166, 0.08);
}

/* Footer Brand Override for Teal Theme (Visible on White BG) */
[data-theme="teal"] .footer-brand {
    background: linear-gradient(135deg, #0d9488 0%, #0891b2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--page-text);
    background: var(--page-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background 0.3s ease, color 0.3s ease;
}

a {
    color: var(--primary-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-500);
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-6);
    }
}

/* =====================================================
   Navigation - Modern Glass Effect
   ===================================================== */
.navbar {
    background: var(--navbar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--navbar-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--navbar-border);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xl);
    font-weight: 700;
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-brand i {
    font-size: var(--text-2xl);
    background: linear-gradient(135deg, #F59E0B, #EF4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    color: var(--gray-700);
    font-size: var(--text-xl);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.navbar-toggle:hover {
    background: var(--primary-50);
    color: var(--primary-600);
}

@media (min-width: 992px) {
    .navbar-toggle {
        display: none;
    }
}

.navbar-nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
    padding: var(--space-4);
    gap: var(--space-2);
    list-style: none;
}

.navbar-nav.active {
    display: flex;
}

@media (min-width: 992px) {
    .navbar-nav {
        display: flex;
        flex-direction: row;
        position: static;
        background: transparent;
        backdrop-filter: none;
        border: none;
        box-shadow: none;
        padding: 0;
        gap: var(--space-1);
        align-items: center;
    }
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    color: var(--navbar-text);
    font-weight: 500;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--navbar-text-hover);
    background: var(--primary-50);
}

/* Nav hover for colored themes */
[data-theme="purple"] .nav-link:hover,
[data-theme="dark"] .nav-link:hover,
[data-theme="teal"] .nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
}

.nav-link i {
    font-size: 0.95em;
}

.btn-nav-primary {
    background: var(--accent-purple);
    color: white !important;
    box-shadow: var(--shadow-colored);
}

.btn-nav-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 35px -5px rgba(99, 102, 241, 0.3);
    color: white !important;
    background: linear-gradient(135deg, #5B52E5 0%, #8B5CF6 100%) !important;
}

/* Ensure btn-nav-primary keeps its styling inside mobile dropdown menu */
.navbar-nav .btn-nav-primary {
    background: var(--accent-purple) !important;
    color: white !important;
}

.navbar-nav .btn-nav-primary:hover {
    background: linear-gradient(135deg, #5B52E5 0%, #8B5CF6 100%) !important;
    color: white !important;
}

/* User Dropdown */
.user-dropdown {
    position: relative;
}

.user-dropdown-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border: 2px solid var(--gray-200);
    background: white;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--gray-700);
    transition: all var(--transition-fast);
}

.user-dropdown-btn:hover {
    border-color: var(--primary-300);
    background: var(--primary-50);
    box-shadow: var(--shadow-glow);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--accent-purple);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--text-sm);
}

.user-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    min-width: 200px;
    background: white;
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    z-index: 1001;
}

.user-dropdown-menu.active {
    display: block;
    animation: dropdownFade 0.2s ease;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    color: var(--gray-700);
    transition: all var(--transition-fast);
}

.user-dropdown-menu a:hover {
    background: var(--primary-50);
    color: var(--primary-600);
}

/* =====================================================
   Main Content
   ===================================================== */
.main-content {
    flex: 1;
    padding: var(--space-6) 0;
}

@media (min-width: 768px) {
    .main-content {
        padding: var(--space-8) 0;
    }
}

/* =====================================================
   Alerts - Modern Style
   ===================================================== */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
    font-weight: 500;
    border: none;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(52, 211, 153, 0.1));
    color: var(--success-600);
    border-left: 4px solid var(--success-500);
}

.alert-error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(248, 113, 113, 0.1));
    color: var(--error-600);
    border-left: 4px solid var(--error-500);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(251, 191, 36, 0.1));
    color: var(--warning-600);
    border-left: 4px solid var(--warning-500);
}

.alert-info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(96, 165, 250, 0.1));
    color: var(--info-600);
    border-left: 4px solid var(--info-500);
}

.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    font-size: var(--text-xl);
    cursor: pointer;
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

.alert-close:hover {
    opacity: 1;
}

/* =====================================================
   Cards - Premium Glass Effect
   ===================================================== */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-2xl);
    box-shadow: var(--card-shadow);
    border: 1px solid var(--card-border);
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.card-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--card-border);
    background: var(--card-bg);
}

.card-body {
    padding: var(--space-5) var(--space-6);
}

.card-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--card-border);
    background: var(--card-bg);
}

/* Prompt Card */
.prompt-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.prompt-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-purple);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

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

.prompt-card .card-body {
    flex: 1;
}

.prompt-card-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.prompt-card-content {
    color: var(--gray-600);
    font-size: var(--text-sm);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.prompt-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    font-size: var(--text-xs);
    color: var(--gray-500);
}

.prompt-card-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.prompt-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
}

/* =====================================================
   Buttons - Vibrant Gradients
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent-purple);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
    color: white;
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-300);
    color: var(--gray-800);
}

.btn-success {
    background: var(--accent-green);
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #EF4444, #DC2626);
    color: white;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.4);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--primary-600);
    border: 2px solid var(--primary-500);
}

.btn-outline:hover {
    background: var(--primary-600);
    color: white;
    border-color: var(--primary-600);
}

.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
    border-radius: var(--radius-md);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    border-radius: var(--radius-xl);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-full);
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

/* =====================================================
   Forms - Clean Style
   ===================================================== */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--gray-700);
}

.form-label .required {
    color: var(--error-500);
    margin-left: 2px;
}

.form-control {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: inherit;
    font-size: var(--text-base);
    color: var(--page-text);
    background: var(--input-bg);
    border: 2px solid var(--input-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-control.error {
    border-color: var(--error-500);
}

.form-control.error:focus {
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.form-text {
    font-size: var(--text-xs);
    color: var(--gray-500);
    margin-top: var(--space-1);
}

.form-error {
    font-size: var(--text-xs);
    color: var(--error-500);
    margin-top: var(--space-1);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

.form-check input {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary-600);
}

.form-check-label {
    font-size: var(--text-sm);
    color: var(--gray-700);
    cursor: pointer;
}

/* Select */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-4) center;
    padding-right: var(--space-10);
}

/* =====================================================
   Grid System
   ===================================================== */
.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

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

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

@media (min-width: 768px) {
    .md\:grid-cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .md\:grid-cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .md\:grid-cols-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .lg\:grid-cols-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* =====================================================
   Page Headers
   ===================================================== */
.page-header {
    margin-bottom: var(--space-8);
}

.page-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}

@media (min-width: 768px) {
    .page-title {
        font-size: var(--text-3xl);
    }
}

.page-subtitle {
    font-size: var(--text-base);
    color: var(--gray-600);
}

.page-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

/* =====================================================
   Auth Pages - Premium Style
   ===================================================== */
.auth-container {
    min-height: calc(100vh - var(--navbar-height) - 100px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6) var(--space-4);
}

.auth-card {
    width: 100%;
    max-width: 440px;
}

.auth-card .card {
    box-shadow: var(--shadow-xl);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    background: var(--accent-purple);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-2);
}

.auth-subtitle {
    color: var(--gray-600);
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--gray-200);
    font-size: var(--text-sm);
    color: var(--gray-600);
}

/* =====================================================
   Hero Section - Vibrant Gradient
   ===================================================== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    color: white;
    padding: var(--space-12) 0;
    margin: calc(-1 * var(--space-6)) calc(-1 * var(--space-4)) var(--space-8);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

@media (min-width: 768px) {
    .hero {
        padding: var(--space-16) 0;
        margin: calc(-1 * var(--space-8)) calc(-1 * var(--space-6)) var(--space-10);
    }
}

.hero-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    position: relative;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: var(--text-4xl);
    }
}

.hero-subtitle {
    font-size: var(--text-lg);
    opacity: 0.95;
    margin-bottom: var(--space-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
    position: relative;
}

.hero .btn-primary {
    background: white;
    color: #667eea;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.hero .btn-primary:hover {
    background: var(--gray-100);
    color: #764ba2;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.hero .btn-outline {
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.hero .btn-outline:hover {
    background: white;
    color: #667eea;
    border-color: white;
}

/* =====================================================
   Stats - Gradient Cards
   ===================================================== */
.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
    .stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-card {
    background: white;
    padding: var(--space-5);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(0, 0, 0, 0.04);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-purple);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    background: var(--accent-purple);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-1);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--gray-600);
    font-weight: 500;
}

/* =====================================================
   Category Badge - Vibrant
   ===================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    color: var(--primary-700);
    border: 1px solid var(--primary-200);
}

.badge-success {
    background: linear-gradient(135deg, var(--success-50), var(--success-100));
    color: var(--success-600);
    border-color: var(--success-500);
}

.badge-warning {
    background: linear-gradient(135deg, var(--warning-50), var(--warning-100));
    color: var(--warning-600);
    border-color: var(--warning-500);
}

.badge-error {
    background: linear-gradient(135deg, var(--error-50), var(--error-100));
    color: var(--error-600);
    border-color: var(--error-500);
}

/* =====================================================
   Search & Filter
   ===================================================== */
.search-bar {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.search-input-wrapper {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-input-wrapper i {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
}

.search-input-wrapper input {
    padding-left: var(--space-10);
}

/* =====================================================
   Empty State
   ===================================================== */
.empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-4);
    color: var(--gray-500);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: var(--space-4);
    background: var(--accent-purple);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-2);
}

.empty-state-text {
    margin-bottom: var(--space-6);
}

/* =====================================================
   Prompt Detail
   ===================================================== */
.prompt-detail {
    background: white;
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(0, 0, 0, 0.04);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.prompt-detail-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-100);
    background: linear-gradient(180deg, white, var(--gray-50));
}

.prompt-detail-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}

.prompt-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    font-size: var(--text-sm);
    color: var(--gray-600);
}

.prompt-detail-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.prompt-detail-content {
    padding: var(--space-6);
}

.prompt-content-box {
    background: linear-gradient(135deg, var(--gray-50), white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    font-size: var(--text-base);
    line-height: 1.8;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.prompt-detail-actions {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-6);
    border-top: 1px solid var(--gray-100);
    background: var(--gray-50);
}

/* =====================================================
   Dashboard
   ===================================================== */
.dashboard-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.dashboard-welcome {
    font-size: var(--text-2xl);
    font-weight: 700;
    background: var(--accent-purple);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =====================================================
   Footer - Theme-Aware Style
   ===================================================== */
.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--card-border);
    padding: var(--space-8) 0;
    margin-top: auto;
    transition: background 0.3s ease;
}

.footer-content {
    text-align: center;
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-lg);
    font-weight: 700;
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-2);
}

.footer-brand i {
    background: linear-gradient(135deg, #F59E0B, #EF4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-text {
    color: var(--page-text-muted);
    margin-bottom: var(--space-2);
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--page-text-muted);
}

/* =====================================================
   Utilities
   ===================================================== */
.text-center {
    text-align: center;
}

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

.mb-0 {
    margin-bottom: 0 !important;
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mb-6 {
    margin-bottom: var(--space-6);
}

.mb-8 {
    margin-bottom: var(--space-8);
}

.mt-4 {
    margin-top: var(--space-4);
}

.mt-6 {
    margin-top: var(--space-6);
}

.flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-2 {
    gap: var(--space-2);
}

.gap-3 {
    gap: var(--space-3);
}

.gap-4 {
    gap: var(--space-4);
}

/* Copy Button Tooltip */
.copy-tooltip {
    position: fixed;
    background: var(--gray-900);
    color: white;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    z-index: 9999;
    pointer-events: none;
    animation: fadeInOut 2s forwards;
    box-shadow: var(--shadow-lg);
}

@keyframes fadeInOut {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }

    15% {
        opacity: 1;
        transform: translateY(0);
    }

    85% {
        opacity: 1;
        transform: translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* =====================================================
   Additional Animations
   ===================================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.animate-slide-up {
    animation: slideUp 0.5s ease forwards;
}

/* =====================================================
   Hover Effects
   ===================================================== */
.hover-lift {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

/* =====================================================
   Scrollbar Styling
   ===================================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* =====================================================
   Selection Styling
   ===================================================== */
::selection {
    background: var(--primary-200);
    color: var(--primary-900);
}

/* =====================================================
   Prompt Builder — 4-Step Wizard
   ===================================================== */

/* Layout */
.builder-layout {
    display: flex;
    gap: var(--space-6);
    max-width: 1200px;
    margin: 0 auto;
    align-items: flex-start;
}

.builder-main {
    flex: 1;
    min-width: 0;
}

.builder-sidebar {
    width: 360px;
    position: sticky;
    top: calc(var(--navbar-height) + var(--space-4));
    flex-shrink: 0;
}

@media (max-width: 1024px) {
    .builder-layout {
        flex-direction: column;
    }
    .builder-sidebar {
        width: 100%;
        position: static;
    }
}

/* Header */
.builder-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.builder-header h1 {
    font-size: var(--text-3xl);
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}

.builder-header p {
    color: var(--gray-500);
    font-size: var(--text-lg);
}

/* Progress Steps */
.progress-steps {
    display: flex;
    justify-content: center;
    gap: var(--space-1);
    margin-bottom: var(--space-8);
    position: relative;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
    cursor: pointer;
    padding: 0 var(--space-4);
    transition: all var(--transition-fast);
}

.progress-step::after {
    content: '';
    position: absolute;
    top: 20px;
    left: calc(50% + 24px);
    width: calc(100% - 8px);
    height: 3px;
    background: var(--gray-200);
    z-index: -1;
    transition: background var(--transition-normal);
}

.progress-step:last-child::after {
    display: none;
}

.progress-step.completed::after {
    background: var(--success-500);
}

.step-circle {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--card-bg);
    color: var(--gray-400);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-sm);
    margin-bottom: var(--space-2);
    transition: all var(--transition-normal);
    border: 3px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.step-label {
    font-size: var(--text-xs);
    color: var(--gray-400);
    text-align: center;
    font-weight: 500;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.progress-step.active .step-circle {
    background: var(--primary-600);
    border-color: var(--primary-600);
    color: white;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
    transform: scale(1.1);
}

.progress-step.active .step-label {
    color: var(--primary-600);
    font-weight: 700;
}

.progress-step.completed .step-circle {
    background: var(--success-500);
    border-color: var(--success-500);
    color: white;
}

.progress-step.completed .step-label {
    color: var(--success-500);
    font-weight: 600;
}

/* Step Content */
.step-content {
    display: none;
}

.step-content.active {
    display: block;
    animation: builderFadeIn 0.35s ease;
}

@keyframes builderFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.step-card {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--card-shadow);
    padding: var(--space-8);
    border: 1px solid var(--card-border);
}

.step-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.step-description {
    color: var(--gray-500);
    margin-bottom: var(--space-6);
}

/* Section Divider inside steps */
.step-section-divider {
    border: none;
    border-top: 1px solid var(--card-border);
    margin: var(--space-6) 0;
}

.step-section-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* Option Cards */
.option-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
    .option-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.option-card {
    padding: var(--space-4);
    border: 2px solid var(--card-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    background: var(--card-bg);
    position: relative;
    overflow: hidden;
}

.option-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--primary-600);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.option-card:hover {
    border-color: var(--primary-300);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.option-card.selected {
    border-color: var(--primary-600);
    background: var(--primary-50);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.option-card .icon {
    font-size: 1.5rem;
    margin-bottom: var(--space-2);
    position: relative;
}

.option-card .label {
    font-weight: 600;
    color: var(--gray-800);
    font-size: var(--text-sm);
    position: relative;
}

.option-card.selected .label {
    color: var(--primary-700);
}

/* Bloom Taxonomy */
.bloom-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.bloom-option {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--card-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--card-bg);
}

.bloom-option:hover {
    border-color: var(--primary-300);
    transform: translateX(4px);
}

.bloom-option.selected {
    border-color: var(--primary-600);
    background: var(--primary-50);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.bloom-level {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.bloom-info h4 {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 2px;
    font-size: var(--text-sm);
}

.bloom-info p {
    font-size: var(--text-xs);
    color: var(--gray-500);
    margin: 0;
}

/* Chips */
.chip-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.chip {
    padding: var(--space-2) var(--space-4);
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
    color: var(--gray-600);
    user-select: none;
}

.chip:hover {
    border-color: var(--primary-300);
    background: var(--primary-50);
    color: var(--primary-700);
}

.chip.selected {
    background: var(--primary-600);
    color: white;
    border-color: var(--primary-600);
    box-shadow: var(--shadow-colored);
}

/* Navigation Buttons */
.step-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--card-border);
}

/* Quality Indicator */
.quality-bar {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: var(--space-4) var(--space-5);
    margin-bottom: var(--space-4);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-sm);
}

.quality-bar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.quality-bar-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--gray-700);
}

.quality-bar-score {
    font-size: var(--text-sm);
    font-weight: 700;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    background: var(--gray-100);
    color: var(--gray-600);
    transition: all var(--transition-normal);
}

.quality-bar-score.good { background: #dcfce7; color: #15803d; }
.quality-bar-score.great { background: #dbeafe; color: #1d4ed8; }
.quality-bar-score.excellent { background: #fae8ff; color: #7e22ce; }

.quality-track {
    height: 8px;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.quality-fill {
    height: 100%;
    border-radius: var(--radius-full);
    background: var(--gray-300);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    width: 0%;
}

.quality-fill.low { background: var(--gray-400); }
.quality-fill.good { background: linear-gradient(90deg, #22c55e, #16a34a); }
.quality-fill.great { background: linear-gradient(90deg, #3b82f6, #6366f1); }
.quality-fill.excellent { background: linear-gradient(90deg, #8b5cf6, #d946ef); }

.quality-hints {
    margin-top: var(--space-3);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.quality-hint {
    font-size: var(--text-xs);
    color: var(--gray-400);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.quality-hint.filled {
    color: var(--success-500);
    text-decoration: line-through;
}

/* Live Preview Panel */
.preview-panel {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
    overflow: hidden;
}

.preview-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--card-border);
    background: var(--gray-50);
}

.preview-panel-title {
    font-weight: 700;
    font-size: var(--text-sm);
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.preview-panel-title .live-dot {
    width: 8px;
    height: 8px;
    background: var(--success-500);
    border-radius: 50%;
    animation: livePulse 2s ease infinite;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.preview-body {
    padding: var(--space-4) var(--space-5);
    font-family: 'IBM Plex Sans Thai', monospace;
    font-size: var(--text-sm);
    line-height: 1.9;
    color: var(--gray-700);
    max-height: 400px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    min-height: 120px;
}

.preview-body .empty-msg {
    color: var(--gray-400);
    font-style: italic;
    text-align: center;
    padding: var(--space-8) 0;
}

.preview-body .section-label {
    color: var(--primary-600);
    font-weight: 700;
    display: block;
    margin-top: var(--space-3);
    margin-bottom: var(--space-1);
}

.preview-body .section-label:first-child {
    margin-top: 0;
}

/* Final Preview (Step 4) */
.final-preview {
    background: var(--gray-900);
    color: #e2e8f0;
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    font-family: 'IBM Plex Sans Thai', monospace;
    font-size: var(--text-sm);
    line-height: 1.9;
    white-space: pre-wrap;
    word-wrap: break-word;
    min-height: 200px;
    margin-bottom: var(--space-4);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.final-actions {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* Copy Tooltip */
.copy-tooltip {
    position: fixed;
    background: var(--gray-900);
    color: white;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    z-index: 9999;
    pointer-events: none;
    animation: tooltipPop 0.3s ease;
    box-shadow: var(--shadow-lg);
}

@keyframes tooltipPop {
    from { opacity: 0; transform: scale(0.8) translateY(4px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

/* Validation shake */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-4px); }
    40%, 80% { transform: translateX(4px); }
}

.shake {
    animation: shake 0.4s ease;
}

/* Inline two-column form layout */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Toast notification */
.builder-toast {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    background: var(--gray-900);
    color: white;
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: var(--text-sm);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    animation: toastSlide 0.4s ease;
}

.builder-toast.success { background: var(--success-600); }
.builder-toast.error { background: var(--error-500); }

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

/* Dark Theme Overrides for Prompt Builder */
[data-theme="dark"] .step-card,
[data-theme="dark"] .quality-bar,
[data-theme="dark"] .preview-panel {
    background: var(--card-bg);
    border-color: var(--card-border);
}

[data-theme="dark"] .option-card {
    background: var(--card-bg);
    border-color: var(--card-border);
}

[data-theme="dark"] .option-card:hover {
    border-color: var(--primary-500);
}

[data-theme="dark"] .option-card.selected {
    background: var(--primary-50);
    border-color: var(--primary-600);
}

[data-theme="dark"] .bloom-option {
    background: var(--card-bg);
    border-color: var(--card-border);
}

[data-theme="dark"] .bloom-option.selected {
    background: var(--primary-50);
    border-color: var(--primary-600);
}

[data-theme="dark"] .chip {
    background: var(--card-bg);
    border-color: var(--card-border);
    color: var(--gray-500);
}

[data-theme="dark"] .chip:hover {
    background: var(--primary-50);
    color: var(--primary-600);
}

[data-theme="dark"] .chip.selected {
    background: var(--primary-600);
    color: white;
    border-color: var(--primary-600);
}

[data-theme="dark"] .preview-panel-header {
    background: var(--gray-100);
    border-color: var(--card-border);
}

[data-theme="dark"] .preview-body {
    color: var(--page-text);
}

[data-theme="dark"] .final-preview {
    background: #0a0a0a;
    border-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .quality-track {
    background: var(--gray-100);
}

[data-theme="dark"] .quality-bar-score {
    background: var(--gray-100);
    color: var(--gray-500);
}

[data-theme="dark"] .step-circle {
    background: var(--card-bg);
    border-color: var(--card-border);
    color: var(--gray-400);
}

[data-theme="dark"] .progress-step::after {
    background: var(--card-border);
}

/* Example Banner */
.example-banner {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 1px solid #fcd34d;
    border-radius: var(--radius-lg);
    padding: 0;
    margin-bottom: var(--space-6);
    overflow: hidden;
    animation: builderFadeIn 0.3s ease;
}

.example-banner-header {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    padding: var(--space-2) var(--space-4);
    font-weight: 600;
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.example-banner-body {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    color: #92400e;
    line-height: 1.7;
}

/* Field Example Hints */
.field-example {
    font-size: var(--text-xs);
    color: var(--primary-500);
    margin-top: var(--space-1);
    padding-left: var(--space-1);
    min-height: 1.2em;
    transition: all var(--transition-fast);
}

.field-example:not(:empty)::before {
    content: '\f0eb';
    font-family: 'Font Awesome 6 Free';
    font-weight: 400;
    margin-right: var(--space-1);
    opacity: 0.7;
}

/* Dark theme overrides */
[data-theme="dark"] .example-banner {
    background: linear-gradient(135deg, #451a03 0%, #78350f 100%);
    border-color: #92400e;
}

[data-theme="dark"] .example-banner-body {
    color: #fbbf24;
}

[data-theme="dark"] .field-example {
    color: var(--primary-600);
}