@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@300;400;500;600&family=Manrope:wght@200;300;400;500;600&family=Playfair+Display:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ========================================
   STYLESYNC DESIGN SYSTEM
   Dual Theme: Light (Default) + Dark (Luxury)
   ======================================== */

/* === LIGHT THEME (Default) === */
:root {
    /* Backgrounds */
    --color-bg: #ffffff;
    --color-surface: #fafafa;
    --color-elevated: #ffffff;
    
    /* Text */
    --color-text: #000000;
    --color-text-secondary: #333333;
    --color-text-muted: #666666;
    
    /* Borders & Lines */
    --color-border: #e2e2e2;
    --color-border-hover: #000000;
    
    /* Accents */
    --color-accent: #000000;
    --color-accent-secondary: #333333;
    
    /* Typography */
    --font-heading: 'Cormorant Garamond', serif;
    --font-body: 'Manrope', sans-serif;
    
    /* Heading Colors */
    --heading-gradient: linear-gradient(135deg, #000, #444);
    --heading-solid: #000000;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Transitions */
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.3s ease;
    
    /* Shadows */
    --shadow-soft: 0 10px 30px rgba(0,0,0,0.05);
    --shadow-medium: 0 20px 40px rgba(0,0,0,0.08);
    --shadow-elevated: 0 25px 50px rgba(0,0,0,0.12);
    
    /* Glass Effects (Light Theme) */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-blur: blur(10px);
    
    /* Button Gradient */
    --btn-gradient: linear-gradient(135deg, #000, #333);
    --btn-text: #ffffff;
    
    /* Cards */
    --card-bg: #ffffff;
    --card-hover-bg: #fafafa;
}

/* === DARK THEME (Luxury) === */
[data-theme="dark"] {
    /* Backgrounds */
    --color-bg: #0A0A0A;
    --color-surface: #141414;
    --color-elevated: #1A1A1A;
    
    /* Text */
    --color-text: #F5F5F5;
    --color-text-secondary: #CCCCCC;
    --color-text-muted: #888888;
    
    /* Borders & Lines */
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-hover: rgba(212, 175, 55, 0.5);
    
    /* Accents - Champagne Gold */
    --color-accent: #D4AF37;
    --color-accent-secondary: #F4E4BA;
    
    /* Typography - Luxury Fonts */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Heading Colors */
    --heading-gradient: linear-gradient(135deg, #D4AF37, #F4E4BA, #D4AF37);
    --heading-solid: #F5F5F5;
    
    /* Shadows - Deeper */
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.4);
    --shadow-medium: 0 20px 40px rgba(0, 0, 0, 0.5);
    --shadow-elevated: 0 25px 60px rgba(0, 0, 0, 0.6);
    
    /* Glow Effects */
    --shadow-glow: 0 0 40px rgba(212, 175, 55, 0.15);
    --shadow-glow-strong: 0 0 60px rgba(212, 175, 55, 0.25);
    
    /* Glass Effects (Dark Theme - Glassmorphism) */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(20px) saturate(180%);
    
    /* Button Gradient - Gold */
    --btn-gradient: linear-gradient(135deg, #D4AF37, #F4E4BA, #D4AF37);
    --btn-text: #0A0A0A;
    
    /* Cards */
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-hover-bg: rgba(255, 255, 255, 0.06);
}

/* ========================================
   BASE STYLES
   ======================================== */

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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.5s ease, color 0.5s ease;
}

/* Dark theme body enhancements */
[data-theme="dark"] body {
    background: radial-gradient(ellipse at top center, #141414 0%, #0A0A0A 50%, #000000 100%);
    background-attachment: fixed;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    font-weight: 400;
    letter-spacing: -0.02em;
    background: var(--heading-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.5s ease;
}

/* Dark theme heading enhancements */
[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3 {
    font-weight: 500;
    letter-spacing: 0.02em;
    text-shadow: 0 0 40px rgba(212, 175, 55, 0.1);
}

p {
    font-size: 1rem;
    color: var(--color-text-muted);
    transition: color 0.5s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   THEME TOGGLE
   ======================================== */

.theme-toggle {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

[data-theme="dark"] .theme-toggle:hover {
    box-shadow: var(--shadow-glow);
}

.theme-toggle-track {
    width: 44px;
    height: 24px;
    background: var(--color-border);
    border-radius: 12px;
    position: relative;
    transition: var(--transition-fast);
}

[data-theme="dark"] .theme-toggle-track {
    background: linear-gradient(135deg, #D4AF37, #F4E4BA);
}

.theme-toggle-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-bg);
    border-radius: 50%;
    position: absolute;
    top: 3px;
    left: 3px;
    transition: var(--transition-fast);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

[data-theme="dark"] .theme-toggle-thumb {
    left: 23px;
    background: #0A0A0A;
}

.theme-toggle-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    font-weight: 500;
}

.theme-toggle-icon {
    font-size: 1rem;
}

/* ========================================
   BUTTONS
   ======================================== */

.button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--btn-gradient);
    color: var(--btn-text);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}

.button:hover::before {
    left: 100%;
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

[data-theme="dark"] .button:hover {
    box-shadow: var(--shadow-glow-strong);
}

.button-outline {
    background: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

.button-outline:hover {
    background: var(--color-accent);
    color: var(--btn-text);
}

[data-theme="dark"] .button-outline {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

[data-theme="dark"] .button-outline:hover {
    background: var(--btn-gradient);
    color: #0A0A0A;
    border-color: transparent;
}

/* ========================================
   CARDS
   ======================================== */

.card {
    background: var(--card-bg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-soft);
}

.card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    background: var(--card-hover-bg);
}

[data-theme="dark"] .card {
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

[data-theme="dark"] .card:hover {
    box-shadow: var(--shadow-glow);
}

/* Glass Card - Enhanced for Dark Theme */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

[data-theme="dark"] .glass-card:hover {
    box-shadow: var(--shadow-glow);
}

/* ========================================
   ANIMATIONS
   ======================================== */

.fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

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

.stagger-in > * {
    opacity: 0;
    animation: fadeIn 0.6s ease-out forwards;
}

.stagger-in > *:nth-child(1) { animation-delay: 0s; }
.stagger-in > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-in > *:nth-child(3) { animation-delay: 0.2s; }
.stagger-in > *:nth-child(4) { animation-delay: 0.3s; }
.stagger-in > *:nth-child(5) { animation-delay: 0.4s; }
.stagger-in > *:nth-child(6) { animation-delay: 0.5s; }
.stagger-in > *:nth-child(7) { animation-delay: 0.6s; }
.stagger-in > *:nth-child(8) { animation-delay: 0.7s; }

/* Dark Theme Enhanced Animations */
[data-theme="dark"] .fade-in {
    animation: darkFadeIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes darkFadeIn {
    from { 
        opacity: 0; 
        transform: translateY(30px) scale(0.98); 
        filter: blur(4px);
    }
    to { 
        opacity: 1; 
        transform: translateY(0) scale(1); 
        filter: blur(0);
    }
}

/* Skeleton Loader */
.skeleton {
    background: linear-gradient(90deg, var(--color-surface) 25%, var(--color-border) 50%, var(--color-surface) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

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

/* Image hover zoom */
.img-zoom {
    overflow: hidden;
}

.img-zoom img {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.img-zoom:hover img {
    transform: scale(1.05);
}

/* ========================================
   WAVE TAG
   ======================================== */

.wave {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    display: inline-block;
    position: relative;
    transition: color 0.3s ease;
}

[data-theme="dark"] .wave {
    color: var(--color-accent);
    font-weight: 500;
}

.wave::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-text-muted);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

[data-theme="dark"] .wave::after {
    background: var(--color-accent);
}

.wave:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ========================================
   TOOL GRID (Dashboard)
   ======================================== */

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.tool-card {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-radius: 0;
    transition: var(--transition-smooth);
}

[data-theme="dark"] .tool-card {
    border-radius: 12px;
}

.tool-card h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.tool-card .wave {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

/* ========================================
   FORM ELEMENTS
   ======================================== */

.chat-input,
.select-input,
input[type="email"],
input[type="text"],
input[type="password"],
select {
    padding: 1rem;
    border: 1px solid var(--color-border);
    font-family: var(--font-body);
    font-size: 0.9rem;
    width: 100%;
    transition: var(--transition-smooth);
    background: var(--color-bg);
    color: var(--color-text);
}

.chat-input:focus,
.select-input:focus,
input:focus,
select:focus {
    outline: none;
    border-color: var(--color-accent);
}

[data-theme="dark"] .chat-input,
[data-theme="dark"] .select-input,
[data-theme="dark"] input[type="email"],
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="password"],
[data-theme="dark"] select {
    background: var(--color-elevated);
    border-color: var(--glass-border);
}

[data-theme="dark"] .chat-input:focus,
[data-theme="dark"] .select-input:focus,
[data-theme="dark"] input:focus,
[data-theme="dark"] select:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

/* Custom Range Slider */
input[type="range"] {
    accent-color: var(--color-accent);
}

[data-theme="dark"] input[type="range"] {
    accent-color: #D4AF37;
}

/* Checkbox */
input[type="checkbox"] {
    accent-color: var(--color-accent);
}

[data-theme="dark"] input[type="checkbox"] {
    accent-color: #D4AF37;
}

/* ========================================
   MODALS
   ======================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

[data-theme="dark"] .modal {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.modal-content {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    max-width: 400px;
    width: 90%;
    text-align: center;
    border: 1px solid var(--color-border);
}

[data-theme="dark"] .modal-content {
    background: var(--color-elevated);
    border-color: var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--shadow-elevated);
}

/* ========================================
   DARK THEME SPECIAL EFFECTS
   ======================================== */

/* Glow text effect */
[data-theme="dark"] .glow-text {
    text-shadow: 0 0 10px rgba(212, 175, 55, 0.5),
                 0 0 20px rgba(212, 175, 55, 0.3),
                 0 0 30px rgba(212, 175, 55, 0.1);
}

/* Gold border accent */
[data-theme="dark"] .gold-accent {
    border-color: var(--color-accent) !important;
}

/* Shimmer effect */
[data-theme="dark"] .shimmer {
    background: linear-gradient(
        90deg,
        var(--color-elevated) 0%,
        rgba(212, 175, 55, 0.1) 50%,
        var(--color-elevated) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

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

/* Particle glow background */
[data-theme="dark"] .luxury-bg {
    position: relative;
}

[data-theme="dark"] .luxury-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(212, 175, 55, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(212, 175, 55, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .tool-grid {
        grid-template-columns: 1fr;
    }
    
    .button {
        padding: 0.8rem 1.5rem;
        font-size: 0.75rem;
    }
    
    .theme-toggle {
        top: 1rem;
        right: 1rem;
        padding: 0.4rem 0.8rem;
    }
    
    .theme-toggle-label {
        display: none;
    }
}

/* ========================================
   REDUCED MOTION
   ======================================== */

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