/* 🎨 GOLDEN RATIO DESIGN SYSTEM - REKURSING.COM */

/* 📐 GOLDEN RATIO CONSTANTS */
:root {
    /* Mathematical Constants */
    --golden-ratio: 1.618033988749895;
    --golden-reciprocal: 0.618033988749895;
    
    /* Fibonacci Typography Scale */
    --font-size-xs: 8px;    /* 8 */
    --font-size-sm: 13px;   /* 13 */
    --font-size-base: 21px; /* 21 */
    --font-size-lg: 34px;   /* 34 */
    --font-size-xl: 55px;   /* 55 */
    --font-size-2xl: 89px;  /* 89 */
    --font-size-3xl: 144px; /* 144 */
    
    /* Golden Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.618; /* φ */
    --line-height-relaxed: 2.0;
    
    /* Fibonacci Spacing Scale */
    --space-xs: 8px;    /* 8 */
    --space-sm: 13px;   /* 13 */
    --space-md: 21px;   /* 21 */
    --space-lg: 34px;   /* 34 */
    --space-xl: 55px;   /* 55 */
    --space-2xl: 89px;  /* 89 */
    --space-3xl: 144px; /* 144 */
    
    /* Golden Color Palette */
    --primary-cyan: #00ffff;
    --primary-blue: #0099cc;
    --primary-indigo: #4b0082;
    --secondary-purple: #6a0dad;
    --secondary-violet: #8a2be2;
    --secondary-magenta: #ff00ff;
    
    /* Background Colors (φ proportions) */
    --bg-primary: #1a1a2e;    /* 61.8% */
    --bg-secondary: #16213e;  /* 38.2% */
    --bg-accent: #0f3460;     /* 23.6% */
    --bg-tertiary: #0a1f3a;   /* 14.6% */
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --text-accent: var(--primary-cyan);
    
    /* Status Colors */
    --success: #00ff88;
    --warning: #ffaa00;
    --error: #ff4444;
    --info: var(--primary-cyan);
    
    /* Golden Breakpoints */
    --mobile: 377px;   /* φ × 233 */
    --tablet: 610px;   /* φ × 377 */
    --desktop: 987px;  /* φ × 610 */
    --wide: 1597px;    /* φ × 987 */
    
    /* Animation Timing (Fibonacci) */
    --duration-xs: 0.08s;   /* 8/100 */
    --duration-sm: 0.13s;   /* 13/100 */
    --duration-md: 0.21s;   /* 21/100 */
    --duration-lg: 0.34s;   /* 34/100 */
    --duration-xl: 0.55s;   /* 55/100 */
    --duration-2xl: 0.89s;  /* 89/100 */
    --duration-3xl: 1.44s;  /* 144/100 */
}

/* 🏗️ GOLDEN GRID SYSTEM */
.golden-grid {
    display: grid;
    grid-template-columns: 38.2% 61.8%; /* φ proportions */
    gap: var(--space-md);
    min-height: 100vh;
}

.golden-sidebar {
    grid-column: 1;
    background: var(--bg-secondary);
    padding: var(--space-lg) var(--space-md);
}

.golden-main {
    grid-column: 2;
    background: var(--bg-primary);
    padding: var(--space-lg) var(--space-xl);
}

/* 📱 RESPONSIVE GOLDEN GRID */
@media (max-width: 987px) {
    .golden-grid {
        grid-template-columns: 1fr;
        grid-template-rows: 38.2% 61.8%;
    }
    
    .golden-sidebar {
        grid-row: 1;
        grid-column: 1;
    }
    
    .golden-main {
        grid-row: 2;
        grid-column: 1;
    }
}

/* 🎨 GOLDEN CARDS */
.golden-card {
    width: 100%;
    aspect-ratio: 1.618; /* φ ratio */
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    border: 1px solid var(--primary-cyan);
    border-radius: var(--space-sm);
    padding: var(--space-md);
    margin: var(--space-sm);
    transition: transform var(--duration-lg) ease;
    position: relative;
    overflow: hidden;
}

.golden-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,255,255,0.1), transparent);
    transition: left var(--duration-xl) ease;
}

.golden-card:hover::before {
    left: 100%;
}

.golden-card:hover {
    transform: scale(1.034); /* φ-based scale */
    box-shadow: 0 0 var(--space-lg) rgba(0, 255, 255, 0.3);
}

.golden-card h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-sm);
    color: var(--primary-cyan);
    font-weight: bold;
}

.golden-card p {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    color: var(--text-secondary);
}

/* 🔘 GOLDEN BUTTONS */
.golden-button {
    position: relative;
    width: 200px;
    height: 124px; /* 200 × 0.618 */
    background: linear-gradient(45deg, var(--primary-cyan), var(--primary-blue));
    border: none;
    border-radius: var(--space-sm);
    color: var(--bg-primary);
    font-size: var(--font-size-sm);
    font-weight: bold;
    cursor: pointer;
    transition: all var(--duration-md) ease;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.golden-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left var(--duration-xl) ease;
}

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

.golden-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 var(--space-xs) var(--space-md) rgba(0, 255, 255, 0.4);
}

.golden-button:active {
    transform: translateY(-1px);
}

/* Button Size Variants */
.golden-button-small {
    width: 124px;
    height: 77px; /* 124 × 0.618 */
    font-size: var(--font-size-xs);
}

.golden-button-large {
    width: 323px;
    height: 200px; /* 323 × 0.618 */
    font-size: var(--font-size-base);
}

.golden-button-primary {
    background: linear-gradient(45deg, var(--primary-cyan), var(--primary-blue));
    color: var(--bg-primary);
}

.golden-button-secondary {
    background: linear-gradient(45deg, var(--secondary-purple), var(--secondary-violet));
    color: var(--text-primary);
}

/* 🪟 GOLDEN MODALS */
.golden-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 618px;
    height: 382px; /* 618 × 0.618 */
    background: var(--bg-primary);
    border: 2px solid var(--primary-cyan);
    border-radius: var(--space-md);
    box-shadow: 0 0 var(--space-xl) rgba(0, 255, 255, 0.3);
    z-index: 2000;
    overflow: hidden;
    animation: modalFadeIn var(--duration-lg) ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.golden-modal-header {
    height: var(--space-xl);
    background: linear-gradient(90deg, var(--primary-cyan), var(--primary-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    font-size: var(--font-size-base);
    font-weight: bold;
}

.golden-modal-content {
    padding: var(--space-lg);
    height: calc(100% - var(--space-xl));
    overflow-y: auto;
}

.golden-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1999;
    animation: backdropFadeIn var(--duration-md) ease;
}

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

/* 📝 GOLDEN TYPOGRAPHY */
.golden-text-xs { font-size: var(--font-size-xs); }
.golden-text-sm { font-size: var(--font-size-sm); }
.golden-text-base { font-size: var(--font-size-base); }
.golden-text-lg { font-size: var(--font-size-lg); }
.golden-text-xl { font-size: var(--font-size-xl); }
.golden-text-2xl { font-size: var(--font-size-2xl); }
.golden-text-3xl { font-size: var(--font-size-3xl); }

.golden-leading-tight { line-height: var(--line-height-tight); }
.golden-leading-normal { line-height: var(--line-height-normal); }
.golden-leading-relaxed { line-height: var(--line-height-relaxed); }

/* 🎨 GOLDEN SPACING */
.golden-p-xs { padding: var(--space-xs); }
.golden-p-sm { padding: var(--space-sm); }
.golden-p-md { padding: var(--space-md); }
.golden-p-lg { padding: var(--space-lg); }
.golden-p-xl { padding: var(--space-xl); }

.golden-m-xs { margin: var(--space-xs); }
.golden-m-sm { margin: var(--space-sm); }
.golden-m-md { margin: var(--space-md); }
.golden-m-lg { margin: var(--space-lg); }
.golden-m-xl { margin: var(--space-xl); }

.golden-spacing {
    padding: var(--space-md) var(--space-lg);
    margin: var(--space-sm) var(--space-md);
}

/* 🌈 GOLDEN COLORS */
.golden-text-primary { color: var(--text-primary); }
.golden-text-secondary { color: var(--text-secondary); }
.golden-text-accent { color: var(--text-accent); }

.golden-bg-primary { background-color: var(--bg-primary); }
.golden-bg-secondary { background-color: var(--bg-secondary); }
.golden-bg-accent { background-color: var(--bg-accent); }

.golden-border-primary { border-color: var(--primary-cyan); }
.golden-border-secondary { border-color: var(--secondary-purple); }

.golden-gradient-primary {
    background: linear-gradient(45deg, var(--primary-cyan), var(--primary-blue));
}

.golden-gradient-secondary {
    background: linear-gradient(135deg, var(--secondary-purple), var(--secondary-violet));
}

.golden-gradient-golden {
    background: linear-gradient(45deg, var(--primary-cyan), var(--secondary-purple));
}

/* 🔄 GOLDEN ANIMATIONS */
.golden-ease {
    transition-timing-function: cubic-bezier(0.618, 0, 0.382, 1);
}

.golden-ease-in {
    transition-timing-function: cubic-bezier(0.618, 0, 1, 1);
}

.golden-ease-out {
    transition-timing-function: cubic-bezier(0, 0, 0.382, 1);
}

.golden-animate-fade-in {
    animation: goldenFadeIn var(--duration-md) var(--golden-ease);
}

.golden-animate-slide-up {
    animation: goldenSlideUp var(--duration-lg) var(--golden-ease);
}

.golden-animate-scale {
    animation: goldenScale var(--duration-sm) var(--golden-ease);
}

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

@keyframes goldenSlideUp {
    from { 
        transform: translateY(var(--space-lg)); 
        opacity: 0; 
    }
    to { 
        transform: translateY(0); 
        opacity: 1; 
    }
}

@keyframes goldenScale {
    from { transform: scale(0.8); }
    to { transform: scale(1); }
}

/* 📱 RESPONSIVE GOLDEN DESIGN */
@media (max-width: 610px) {
    .golden-modal {
        width: 90vw;
        height: calc(90vw * 0.618);
        max-width: 377px;
        max-height: 233px;
    }
    
    .golden-button {
        width: 150px;
        height: 93px; /* 150 × 0.618 */
    }
    
    .golden-card {
        aspect-ratio: 1.2; /* Slightly less extreme on mobile */
    }
}

@media (max-width: 377px) {
    .golden-card {
        margin: var(--space-xs);
    }
    
    .golden-button {
        width: 120px;
        height: 74px; /* 120 × 0.618 */
        font-size: var(--font-size-xs);
    }
    
    .golden-text-3xl { font-size: var(--font-size-2xl); }
    .golden-text-2xl { font-size: var(--font-size-xl); }
}

/* 🎯 GOLDEN UTILITIES */
.golden-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.golden-flex {
    display: flex;
}

.golden-flex-col {
    flex-direction: column;
}

.golden-flex-row {
    flex-direction: row;
}

.golden-justify-center {
    justify-content: center;
}

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

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

.golden-hidden {
    display: none;
}

.golden-visible {
    display: block;
}

/* 🏆 GOLDEN HERO SECTION */
.golden-hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary), var(--bg-accent));
    position: relative;
    overflow: hidden;
}

.golden-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 38.2% 61.8%, rgba(0,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.golden-hero h1 {
    font-size: var(--font-size-3xl);
    background: linear-gradient(45deg, var(--primary-cyan), var(--primary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    text-shadow: 0 0 var(--space-lg) rgba(0, 255, 255, 0.3);
    animation: goldenGlow var(--duration-2xl) ease-in-out infinite alternate;
}

@keyframes goldenGlow {
    from { text-shadow: 0 0 var(--space-lg) rgba(0, 255, 255, 0.3); }
    to { text-shadow: 0 0 var(--space-xl) rgba(0, 255, 255, 0.6); }
}

.golden-hero p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin: var(--space-lg) 0;
    max-width: 618px; /* Golden width */
    line-height: var(--line-height-normal);
}

/* 🎨 GOLDEN FEATURE GRID */
.golden-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    padding: var(--space-xl);
    max-width: 1597px; /* Golden wide width */
    margin: 0 auto;
}

.golden-feature-card {
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    border: 1px solid var(--primary-cyan);
    border-radius: var(--space-sm);
    padding: var(--space-lg);
    text-align: center;
    transition: all var(--duration-lg) ease;
    position: relative;
    overflow: hidden;
}

.golden-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,255,255,0.05), transparent);
    transition: left var(--duration-xl) ease;
}

.golden-feature-card:hover::before {
    left: 100%;
}

.golden-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 var(--space-md) var(--space-xl) rgba(0, 255, 255, 0.2);
}

.golden-feature-card h3 {
    font-size: var(--font-size-lg);
    color: var(--primary-cyan);
    margin-bottom: var(--space-sm);
}

.golden-feature-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: var(--line-height-normal);
}

/* 🚀 GOLDEN FLOATING BUTTONS */
.golden-floating-buttons {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    z-index: 1000;
}

.golden-floating-button {
    width: 60px;
    height: 37px; /* 60 × 0.618 */
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    transition: all var(--duration-md) ease;
    box-shadow: 0 var(--space-xs) var(--space-sm) rgba(0, 0, 0, 0.3);
}

.golden-floating-button:hover {
    transform: scale(1.1);
    box-shadow: 0 var(--space-sm) var(--space-md) rgba(0, 0, 0, 0.4);
}

.golden-floating-button-primary {
    background: linear-gradient(45deg, var(--primary-cyan), var(--primary-blue));
    color: var(--bg-primary);
}

.golden-floating-button-secondary {
    background: linear-gradient(45deg, var(--secondary-purple), var(--secondary-violet));
    color: var(--text-primary);
}

.golden-floating-button-accent {
    background: linear-gradient(45deg, var(--success), var(--warning));
    color: var(--bg-primary);
}

/* 📊 GOLDEN PROGRESS BARS */
.golden-progress {
    width: 100%;
    height: var(--space-sm);
    background: var(--bg-secondary);
    border-radius: var(--space-xs);
    overflow: hidden;
    position: relative;
}

.golden-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-cyan), var(--primary-blue));
    border-radius: var(--space-xs);
    transition: width var(--duration-lg) ease;
    position: relative;
}

.golden-progress-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: goldenProgressShine var(--duration-2xl) ease-in-out infinite;
}

@keyframes goldenProgressShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* 🎯 GOLDEN LOADING SPINNER */
.golden-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-secondary);
    border-top: 3px solid var(--primary-cyan);
    border-radius: 50%;
    animation: goldenSpin var(--duration-xl) linear infinite;
}

@keyframes goldenSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 🏁 GOLDEN COMPLETION STYLES */
.golden-complete {
    background: linear-gradient(45deg, var(--success), var(--primary-cyan));
    color: var(--bg-primary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--space-xs);
    font-weight: bold;
    animation: goldenComplete var(--duration-lg) ease;
}

@keyframes goldenComplete {
    0% { transform: scale(0.8); opacity: 0; }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); opacity: 1; }
}