/* ============================================
   FTC Kazakhstan Team Website - Main Stylesheet
   ============================================ */

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

:root {
    /* Color Palette - Dark Theme (Default) */
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-dark-black: #1A1A1A;
    --color-gold: #FFD700;
    --color-gold-light: #FFE44D;
    --color-gold-dark: #FFA500;
    --color-gold-gradient: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    --color-light-gray: #2A2A2A;
    --color-medium-gray: #3A3A3A;
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #CCCCCC;
    --color-text-gold: #FFD700;
    
    /* Background colors */
    --bg-primary: #000000;
    --bg-secondary: #1A1A1A;
    --bg-card: linear-gradient(135deg, #1A1A1A 0%, #2A2A2A 100%);
    --bg-card-hover: linear-gradient(135deg, #2A2A2A 0%, #3A3A3A 100%);
    --border-color: rgba(255, 215, 0, 0.2);
    
    /* Typography */
    --font-primary: 'Montserrat', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing System */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 32px;
    --spacing-lg: 64px;
    --spacing-xl: 96px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(255, 215, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(255, 215, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(255, 215, 0, 0.4);
    --shadow-gold: 0 0 20px rgba(255, 215, 0, 0.5);
    
    /* Grid */
    --grid-columns: 12;
    --grid-gutter: 24px;
    --grid-margin: 80px;
}

[data-theme="light"] {
    /* Color Palette - Multi-Color Modern Palette with Warm Tones */
    --color-black: #FDFCFB;
    --color-dark-black: #F5F3F0;
    --color-light-gray: #EBE8E4;
    --color-medium-gray: #DDD9D4;
    --color-text-primary: #2C2A27;
    --color-text-secondary: #5A5753;
    
    /* Primary accent - Blue */
    --color-gold: #1976D2;
    --color-gold-light: #42A5F5;
    --color-gold-dark: #1565C0;
    --color-gold-gradient: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    --color-text-gold: #1976D2;
    
    /* Multi-color gradients for variety */
    --gradient-primary: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    --gradient-secondary: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
    --gradient-purple: linear-gradient(135deg, #9C27B0 0%, #7B1FA2 100%);
    --gradient-teal: linear-gradient(135deg, #009688 0%, #00796B 100%);
    --gradient-green: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
    --gradient-pink: linear-gradient(135deg, #E91E63 0%, #C2185B 100%);
    --gradient-multi: linear-gradient(135deg, #1976D2 0%, #9C27B0 50%, #FF9800 100%);
    
    /* Secondary accent - Orange */
    --color-accent: #FF9800;
    --color-accent-light: #FFB74D;
    --color-accent-dark: #F57C00;
    
    /* Additional accent colors */
    --color-purple: #9C27B0;
    --color-purple-light: #BA68C8;
    --color-purple-dark: #7B1FA2;
    
    --color-teal: #009688;
    --color-teal-light: #4DB6AC;
    --color-teal-dark: #00796B;
    
    --color-green: #4CAF50;
    --color-green-light: #81C784;
    --color-green-dark: #388E3C;
    
    --color-pink: #E91E63;
    --color-pink-light: #F48FB1;
    --color-pink-dark: #C2185B;
    
    --color-indigo: #3F51B5;
    --color-indigo-light: #7986CB;
    --color-indigo-dark: #303F9F;
    
    /* Background colors - Warm cream/beige tones instead of pure white */
    --bg-primary: #FDFCFB;
    --bg-secondary: #F5F3F0;
    --bg-card: linear-gradient(135deg, #FDFCFB 0%, #F5F3F0 100%);
    --bg-card-hover: linear-gradient(135deg, #F5F3F0 0%, #EBE8E4 100%);
    --border-color: rgba(25, 118, 210, 0.15);
    
    /* Shadows - Material Design elevation */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
    --shadow-gold: 0 0 20px rgba(25, 118, 210, 0.25);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 215, 0, 0.7);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(255, 215, 0, 0);
    }
}

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

body {
    font-family: var(--font-primary) !important;
    color: var(--color-text-primary);
    line-height: 1.7;
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(245, 158, 11, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(245, 158, 11, 0.03) 0%, transparent 50%);
    animation: fadeInUp 0.6s ease-out;
    transition: background-color 0.3s ease, color 0.3s ease;
}

[data-theme="light"] body {
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(25, 118, 210, 0.015) 0%, transparent 50%),
        radial-gradient(circle at 40% 70%, rgba(156, 39, 176, 0.015) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 152, 0, 0.015) 0%, transparent 50%),
        radial-gradient(circle at 60% 30%, rgba(0, 150, 136, 0.015) 0%, transparent 50%);
    background-color: #FDFCFB;
}

/* Background image overlay for hero sections */
.hero-bg {
    position: relative;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: var(--hero-bg-image, none);
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: 0;
    filter: blur(8px);
    transform: scale(1.1);
}

.hero-bg > * {
    position: relative;
    z-index: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 3rem;
    background: var(--color-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

h2 {
    font-size: 2.25rem;
    background: var(--color-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

h3 {
    font-size: 1.75rem;
    color: var(--color-text-primary);
    font-weight: 600;
}

h4 {
    font-size: 1.5rem;
    color: var(--color-gold);
    font-weight: 600;
}

[data-theme="light"] h3 {
    color: #2C2A27;
}

[data-theme="light"] h4 {
    color: #1976D2;
}

h5, h6 {
    color: var(--color-text-primary);
}

p {
    font-family: var(--font-primary);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

[data-theme="light"] p {
    color: #5A5753;
    line-height: 1.8;
}

/* Container & Grid System */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--grid-margin);
}

.grid {
    display: grid;
    grid-template-columns: repeat(var(--grid-columns), 1fr);
    gap: var(--grid-gutter);
}

/* Navigation */
.navbar {
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(255, 215, 0, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    border-bottom: 2px solid var(--color-gold);
}

[data-theme="light"] .navbar {
    background-color: rgba(253, 252, 251, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-bottom: 2px solid rgba(25, 118, 210, 0.2);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--color-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    position: relative;
    transition: all 0.3s ease;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-gold-gradient);
    transition: width 0.3s ease;
}

.logo:hover::after {
    width: 100%;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: var(--spacing-xs) 0;
}

[data-theme="light"] .nav-links a {
    color: #5A5753;
}

[data-theme="light"] .nav-links a:hover {
    color: #1976D2;
}

[data-theme="light"] .nav-links a.active {
    color: #1976D2;
}

/* Colorful navigation links */
[data-theme="light"] .nav-links li:nth-child(2) a:hover,
[data-theme="light"] .nav-links li:nth-child(2) a.active {
    color: #9C27B0;
}

[data-theme="light"] .nav-links li:nth-child(3) a:hover,
[data-theme="light"] .nav-links li:nth-child(3) a.active {
    color: #009688;
}

[data-theme="light"] .nav-links li:nth-child(4) a:hover,
[data-theme="light"] .nav-links li:nth-child(4) a.active {
    color: #FF9800;
}

[data-theme="light"] .nav-links li:nth-child(5) a:hover,
[data-theme="light"] .nav-links li:nth-child(5) a.active {
    color: #4CAF50;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-gold-gradient);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--color-gold);
    transform: translateY(-2px);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a.active {
    color: var(--color-gold);
}

.nav-links a.active::after {
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-family: var(--font-primary);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--color-gold-gradient);
    color: var(--color-black);
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 1;
}

/* Multi-color button variations */
[data-theme="light"] .btn-primary:nth-of-type(6n+1) {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
}

[data-theme="light"] .btn-primary:nth-of-type(6n+2) {
    background: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
}

[data-theme="light"] .btn-primary:nth-of-type(6n+3) {
    background: linear-gradient(135deg, #9C27B0 0%, #7B1FA2 100%);
}

[data-theme="light"] .btn-primary:nth-of-type(6n+4) {
    background: linear-gradient(135deg, #009688 0%, #00796B 100%);
}

[data-theme="light"] .btn-primary:nth-of-type(6n+5) {
    background: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
}

[data-theme="light"] .btn-primary:nth-of-type(6n+6) {
    background: linear-gradient(135deg, #E91E63 0%, #C2185B 100%);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-lg);
    animation: pulse 1.5s infinite;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-gold);
    border: 2px solid var(--color-gold);
    position: relative;
    z-index: 1;
}

.btn-secondary:hover {
    background: var(--color-gold-gradient);
    color: var(--color-black);
    border-color: var(--color-gold);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
    cursor: pointer;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.1), transparent);
    transition: left 0.5s;
}

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

.card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gold);
    background: var(--bg-card-hover);
}

[data-theme="light"] .card {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* Colorful borders on hover for different cards - Multi-color palette */
[data-theme="light"] .card:nth-child(6n+1):hover {
    border-color: rgba(25, 118, 210, 0.35);
}

[data-theme="light"] .card:nth-child(6n+2):hover {
    border-color: rgba(255, 152, 0, 0.35);
}

[data-theme="light"] .card:nth-child(6n+3):hover {
    border-color: rgba(156, 39, 176, 0.35);
}

[data-theme="light"] .card:nth-child(6n+4):hover {
    border-color: rgba(0, 150, 136, 0.35);
}

[data-theme="light"] .card:nth-child(6n+5):hover {
    border-color: rgba(76, 175, 80, 0.35);
}

[data-theme="light"] .card:nth-child(6n+6):hover {
    border-color: rgba(233, 30, 99, 0.35);
}

[data-theme="light"] .card:nth-child(3n+2):hover {
    border-color: rgba(156, 39, 176, 0.35);
}

[data-theme="light"] .card:nth-child(3n+3):hover {
    border-color: rgba(255, 152, 0, 0.35);
}

[data-theme="light"] .card:nth-child(4n+1):hover {
    border-color: rgba(0, 150, 136, 0.35);
}

[data-theme="light"] .card:nth-child(5n+1):hover {
    border-color: rgba(76, 175, 80, 0.35);
}

[data-theme="light"] .card:nth-child(6n+1):hover {
    border-color: rgba(233, 30, 99, 0.35);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: var(--color-gold-gradient);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-black);
    font-size: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

/* Multi-color card icons for light theme */
[data-theme="light"] .card-icon {
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.2);
}

/* Multi-color icons for cards - 6 color rotation */
[data-theme="light"] .card:nth-child(6n+1) .card-icon {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.25);
}

[data-theme="light"] .card:nth-child(6n+2) .card-icon {
    background: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
    box-shadow: 0 2px 8px rgba(255, 152, 0, 0.25);
}

[data-theme="light"] .card:nth-child(6n+3) .card-icon {
    background: linear-gradient(135deg, #9C27B0 0%, #7B1FA2 100%);
    box-shadow: 0 2px 8px rgba(156, 39, 176, 0.25);
}

[data-theme="light"] .card:nth-child(6n+4) .card-icon {
    background: linear-gradient(135deg, #009688 0%, #00796B 100%);
    box-shadow: 0 2px 8px rgba(0, 150, 136, 0.25);
}

[data-theme="light"] .card:nth-child(6n+5) .card-icon {
    background: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.25);
}

[data-theme="light"] .card:nth-child(6n+6) .card-icon {
    background: linear-gradient(135deg, #E91E63 0%, #C2185B 100%);
    box-shadow: 0 2px 8px rgba(233, 30, 99, 0.25);
}

.card:hover .card-icon {
    transform: rotate(5deg) scale(1.1);
    box-shadow: var(--shadow-gold);
}

/* Hero Section */
.hero {
    background: 
        radial-gradient(circle at 30% 50%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
        linear-gradient(135deg, var(--color-black) 0%, var(--color-dark-black) 100%);
    padding: var(--spacing-xl) 0;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

[data-theme="light"] .hero {
    background: 
        radial-gradient(circle at 20% 40%, rgba(25, 118, 210, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 50% 60%, rgba(156, 39, 176, 0.025) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255, 152, 0, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 30% 80%, rgba(0, 150, 136, 0.025) 0%, transparent 50%),
        linear-gradient(135deg, #FDFCFB 0%, #F5F3F0 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.05) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

.hero-content {
    grid-column: 1 / 7;
}

.hero-illustration {
    grid-column: 7 / 13;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* Section Spacing */
.section {
    padding: var(--spacing-lg) 0;
}

.section-title {
    font-family: var(--font-primary);
    text-align: center;
    margin-bottom: var(--spacing-md);
    background: var(--color-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    animation: fadeInUp 0.8s ease-out;
}

/* Multi-color section titles */
[data-theme="light"] .section-title:nth-of-type(1) {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .section-title:nth-of-type(2) {
    background: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .section-title:nth-of-type(3) {
    background: linear-gradient(135deg, #9C27B0 0%, #7B1FA2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .section-title:nth-of-type(4) {
    background: linear-gradient(135deg, #009688 0%, #00796B 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .section-title:nth-of-type(5) {
    background: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .section-title:nth-of-type(6) {
    background: linear-gradient(135deg, #E91E63 0%, #C2185B 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--color-gold-gradient);
    border-radius: 2px;
}

/* Colorful section title underlines for light theme */
[data-theme="light"] .section:nth-child(3n+1) .section-title::after {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
}

[data-theme="light"] .section:nth-child(3n+2) .section-title::after {
    background: linear-gradient(135deg, #9C27B0 0%, #7B1FA2 100%);
}

[data-theme="light"] .section:nth-child(3n+3) .section-title::after {
    background: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
}

[data-theme="light"] .section:nth-child(4n+1) .section-title::after {
    background: linear-gradient(135deg, #009688 0%, #00796B 100%);
}

[data-theme="light"] .section:nth-child(5n+1) .section-title::after {
    background: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
}

.section-subtitle {
    font-family: var(--font-primary);
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out;
}

[data-theme="light"] .section-subtitle {
    color: #5A5753;
}

/* Info Cards Grid */
.info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--grid-gutter);
    margin: var(--spacing-md) 0;
}

/* Team Preview */
.team-preview {
    background: linear-gradient(135deg, var(--color-dark-black) 0%, var(--color-light-gray) 100%);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-md);
    align-items: center;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

[data-theme="light"] .team-preview {
    background: linear-gradient(135deg, #FDFCFB 0%, #F5F3F0 100%);
    border: 1px solid rgba(25, 118, 210, 0.15);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .team-preview:hover {
    border-color: rgba(25, 118, 210, 0.3);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.team-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-gold-gradient);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.team-preview:hover::before {
    transform: scaleX(1);
}

.team-preview:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gold);
}

.team-preview-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--color-dark-black) 0%, var(--color-light-gray) 100%);
    border: 2px solid rgba(255, 215, 0, 0.3);
    transition: all 0.3s ease;
}

.team-preview-image:hover {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-md);
    transform: scale(1.02);
}

/* Learning Modules */
.learning-modules {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.module-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

[data-theme="light"] .module-card {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .module-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    border-color: rgba(25, 118, 210, 0.3);
}

/* Colorful module cards */
[data-theme="light"] .module-card:nth-child(3n+1):hover {
    border-color: rgba(25, 118, 210, 0.35);
}

[data-theme="light"] .module-card:nth-child(3n+2):hover {
    border-color: rgba(156, 39, 176, 0.35);
}

[data-theme="light"] .module-card:nth-child(3n+3):hover {
    border-color: rgba(255, 152, 0, 0.35);
}

.module-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.module-card:hover::after {
    opacity: 1;
}

.module-card:hover {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px) scale(1.02);
}

/* Footer */
.footer {
    background: linear-gradient(180deg, var(--color-black) 0%, var(--color-dark-black) 100%);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    border-top: 2px solid var(--color-gold);
    position: relative;
}

[data-theme="light"] .footer {
    background: linear-gradient(180deg, #F5F3F0 0%, #EBE8E4 100%);
    color: #2C2A27;
    border-top: 2px solid rgba(25, 118, 210, 0.2);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-gold-gradient);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.footer-section h4 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

[data-theme="light"] .footer-section h4 {
    color: #2C2A27;
}

.footer-links {
    list-style: none;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: block;
    margin-bottom: var(--spacing-xs);
    transition: color 0.3s ease;
}

[data-theme="light"] .footer-links a {
    color: #5A5753;
}

[data-theme="light"] .footer-links a:hover {
    color: #1976D2;
}

/* Colorful footer links */
[data-theme="light"] .footer-section:nth-child(1) .footer-links a:hover {
    color: #1976D2;
}

[data-theme="light"] .footer-section:nth-child(2) .footer-links a:hover {
    color: #9C27B0;
}

[data-theme="light"] .footer-section:nth-child(3) .footer-links a:hover {
    color: #009688;
}

[data-theme="light"] .footer-section:nth-child(4) .footer-links a:hover {
    color: #FF9800;
}

.footer-links a:hover {
    color: var(--color-gold);
    transform: translateX(5px);
    transition: all 0.3s ease;
}

/* Glossary Sidebar */
.glossary-sidebar {
    background: linear-gradient(135deg, var(--color-dark-black) 0%, var(--color-light-gray) 100%);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    position: sticky;
    top: 100px;
    box-shadow: var(--shadow-md);
}

[data-theme="light"] .glossary-sidebar {
    background: linear-gradient(135deg, #FDFCFB 0%, #F5F3F0 100%);
    border: 1px solid rgba(25, 118, 210, 0.15);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.glossary-item {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-medium-gray);
}

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

.glossary-term {
    font-weight: 700;
    background: var(--color-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
    transition: all 0.3s ease;
}

.glossary-item:hover .glossary-term {
    transform: translateX(5px);
}

/* Infographic */
.infographic {
    background: linear-gradient(135deg, var(--color-dark-black) 0%, var(--color-light-gray) 100%);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    box-shadow: var(--shadow-md);
}

[data-theme="light"] .infographic {
    background: linear-gradient(135deg, #FDFCFB 0%, #F5F3F0 100%);
    border: 1px solid rgba(25, 118, 210, 0.15);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.infographic-step {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-dark-black) 0%, var(--color-light-gray) 100%);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    animation: slideIn 0.6s ease-out;
}

[data-theme="light"] .infographic-step {
    background: linear-gradient(135deg, #F5F3F0 0%, #FDFCFB 100%);
    border: 1px solid rgba(25, 118, 210, 0.12);
}

[data-theme="light"] .infographic-step:hover {
    border-color: rgba(25, 118, 210, 0.25);
    background: linear-gradient(135deg, #FDFCFB 0%, #EBE8E4 100%);
}

.infographic-step:hover {
    transform: translateX(10px);
    border-color: var(--color-gold);
    box-shadow: var(--shadow-sm);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--color-gold-gradient);
    color: var(--color-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

/* Colorful step numbers for light theme */
[data-theme="light"] .infographic-step:nth-child(5n+1) .step-number {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.25);
}

[data-theme="light"] .infographic-step:nth-child(5n+2) .step-number {
    background: linear-gradient(135deg, #9C27B0 0%, #7B1FA2 100%);
    box-shadow: 0 2px 8px rgba(156, 39, 176, 0.25);
}

[data-theme="light"] .infographic-step:nth-child(5n+3) .step-number {
    background: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
    box-shadow: 0 2px 8px rgba(255, 152, 0, 0.25);
}

[data-theme="light"] .infographic-step:nth-child(5n+4) .step-number {
    background: linear-gradient(135deg, #009688 0%, #00796B 100%);
    box-shadow: 0 2px 8px rgba(0, 150, 136, 0.25);
}

[data-theme="light"] .infographic-step:nth-child(5n+5) .step-number {
    background: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.25);
}

.infographic-step:hover .step-number {
    transform: scale(1.2) rotate(360deg);
    box-shadow: var(--shadow-gold);
}

/* Member Cards */
.member-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.member-card {
    text-align: center;
    background: linear-gradient(135deg, var(--color-dark-black) 0%, var(--color-light-gray) 100%);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

[data-theme="light"] .member-card {
    background: linear-gradient(135deg, #FDFCFB 0%, #F5F3F0 100%);
    border: 1px solid rgba(25, 118, 210, 0.12);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .member-card:hover {
    border-color: rgba(25, 118, 210, 0.3);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.member-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-gold-gradient);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

/* Colorful member card top borders for light theme */
[data-theme="light"] .member-card:nth-child(6n+1)::before {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
}

[data-theme="light"] .member-card:nth-child(6n+2)::before {
    background: linear-gradient(135deg, #9C27B0 0%, #7B1FA2 100%);
}

[data-theme="light"] .member-card:nth-child(6n+3)::before {
    background: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
}

[data-theme="light"] .member-card:nth-child(6n+4)::before {
    background: linear-gradient(135deg, #009688 0%, #00796B 100%);
}

[data-theme="light"] .member-card:nth-child(6n+5)::before {
    background: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
}

[data-theme="light"] .member-card:nth-child(6n+6)::before {
    background: linear-gradient(135deg, #E91E63 0%, #C2185B 100%);
}

/* Colorful member card top borders for light theme */
[data-theme="light"] .member-card:nth-child(6n+1)::before {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
}

[data-theme="light"] .member-card:nth-child(6n+2)::before {
    background: linear-gradient(135deg, #9C27B0 0%, #7B1FA2 100%);
}

[data-theme="light"] .member-card:nth-child(6n+3)::before {
    background: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
}

[data-theme="light"] .member-card:nth-child(6n+4)::before {
    background: linear-gradient(135deg, #009688 0%, #00796B 100%);
}

[data-theme="light"] .member-card:nth-child(6n+5)::before {
    background: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
}

[data-theme="light"] .member-card:nth-child(6n+6)::before {
    background: linear-gradient(135deg, #E91E63 0%, #C2185B 100%);
}

.member-card:hover::before {
    transform: scaleX(1);
}

.member-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gold);
}

.member-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-dark-black) 0%, var(--color-light-gray) 100%);
    border: 3px solid rgba(255, 215, 0, 0.5);
    display: block;
    transition: all 0.4s ease;
    box-shadow: var(--shadow-sm);
}

[data-theme="light"] .member-photo {
    background: linear-gradient(135deg, #F5F3F0 0%, #EBE8E4 100%);
    border: 3px solid rgba(25, 118, 210, 0.25);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.member-card:hover .member-photo {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-gold);
    transform: scale(1.1) rotate(5deg);
}

/* Banner */
.banner {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-dark-black) 0%, var(--color-light-gray) 100%);
    border: 2px solid rgba(255, 215, 0, 0.3);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

[data-theme="light"] .banner {
    background: linear-gradient(135deg, #F5F3F0 0%, #EBE8E4 100%);
    border: 2px solid rgba(25, 118, 210, 0.15);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.banner:hover {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-lg);
    transform: scale(1.01);
}

/* Video Placeholder */
.video-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--color-dark-black) 0%, var(--color-black) 100%);
    border: 2px solid rgba(255, 215, 0, 0.3);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gold);
    font-size: 1.5rem;
    margin: var(--spacing-md) 0;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

[data-theme="light"] .video-placeholder {
    background: linear-gradient(135deg, #F5F3F0 0%, #FDFCFB 100%);
    border: 2px solid rgba(25, 118, 210, 0.15);
    color: #1976D2;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.video-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

.video-placeholder:hover {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
    transition: all 0.3s ease;
}

/* Feature Blocks */
.feature-blocks {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.feature-block {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--color-gold-gradient);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-black);
    font-size: 2rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

[data-theme="light"] .feature-icon {
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.2);
}

.feature-block:hover .feature-icon {
    transform: rotate(10deg) scale(1.1);
    box-shadow: var(--shadow-gold);
}

/* Responsive Design */
@media (max-width: 1200px) {
    :root {
        --grid-margin: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --grid-margin: 24px;
    }
    
    .nav-links {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .info-cards {
        grid-template-columns: 1fr;
    }
    
    .hero-content,
    .hero-illustration {
        grid-column: 1 / 13;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* Form Styles */
input, textarea, select {
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-gold) !important;
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
    margin-left: var(--spacing-md);
}

.lang-switcher a {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--color-text-secondary);
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.lang-switcher a.active {
    background: var(--color-gold-gradient);
    color: var(--color-black);
    font-weight: 600;
}

.lang-switcher a:hover {
    color: var(--color-gold);
}

/* Theme Switcher */
.theme-switcher {
    margin-left: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
}

.theme-switcher:hover {
    border-color: var(--color-gold);
    transform: scale(1.1);
}

[data-theme="light"] .theme-switcher {
    background: #F5F3F0;
    border: 1px solid rgba(25, 118, 210, 0.15);
}

[data-theme="light"] .theme-switcher:hover {
    border-color: rgba(25, 118, 210, 0.3);
    background: #EBE8E4;
}