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

:root {
    /* Dark Theme Color Palette */
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --accent-light: #fbbf24;
    
    /* Dark Theme Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-light: #94a3b8;
    --text-muted: #64748b;
    
    /* Dark Theme Background Colors */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-glass: rgba(15, 23, 42, 0.8);
    --bg-glass-light: rgba(30, 41, 59, 0.6);
    --bg-glass-hover: rgba(30, 41, 59, 0.8);
    
    /* Glassmorphism Colors */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    --glass-backdrop: blur(20px);
    
    /* Border Colors */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.05);
    --border-glow: rgba(59, 130, 246, 0.3);
    
    /* Enhanced Shadows for Dark Theme */
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-large: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
    --shadow-glow-strong: 0 0 30px rgba(59, 130, 246, 0.5);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    background-attachment: fixed;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.btn-primary {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.1) 0%, 
        transparent 50%, 
        rgba(59, 130, 246, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.3),
        0 0 20px rgba(59, 130, 246, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(59, 130, 246, 0.25);
    color: rgba(59, 130, 246, 0.9);
    box-shadow: 
        0 6px 24px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.05) 0%, 
        transparent 50%, 
        rgba(59, 130, 246, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.btn-secondary:hover::before {
    opacity: 1;
}

.btn-secondary:hover {
    background: rgba(59, 130, 246, 0.03);
    border-color: rgba(59, 130, 246, 0.4);
    color: var(--text-primary);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.3),
        0 0 20px rgba(59, 130, 246, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn-full {
    width: 100%;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: var(--bg-glass);
    box-shadow: var(--shadow-large);
    border-bottom: 1px solid var(--border-glow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    object-fit: cover;
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-light);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
    border-radius: var(--radius-sm);
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}


/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    opacity: 0.8;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23334155" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.2;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    width: 100%;
    max-width: 1000px;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-wrapper {
    position: relative;
    width: 380px;
    height: 480px;
    border-radius: var(--radius-xl);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    padding: 8px;
    transition: all var(--transition-slow);
    overflow: hidden;
}

.image-wrapper:hover {
    transform: scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.2);
}

.hero-profile-image {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
    object-fit: cover;
    transition: all var(--transition-slow);
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--primary-light);
    letter-spacing: 0.025em;
    width: fit-content;
    transition: all var(--transition-normal);
}

.hero-badge:hover {
    background: var(--glass-hover);
    border-color: var(--primary-color);
}

.hero-name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin: 0;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.hero-title {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    line-height: 1.4;
    margin: 0;
    font-weight: 400;
    max-width: 400px;
}

.hero-title:first-of-type {
    white-space: nowrap;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    justify-content: flex-start;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--radius-xl);
    font-weight: 700;
    text-decoration: none;
    transition: all var(--transition-slow);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: var(--font-size-lg);
    letter-spacing: 0.02em;
    backdrop-filter: var(--glass-backdrop);
    position: relative;
    overflow: hidden;
    min-width: 160px;
    text-transform: uppercase;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

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

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

.btn-primary {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-large), 0 0 20px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    color: var(--text-primary);
    border-color: var(--border-color);
    box-shadow: var(--shadow-light);
}

.btn-secondary:hover {
    background: var(--glass-hover);
    border-color: var(--text-primary);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}


.profile-image-wrapper {
    position: relative;
    margin: 0 auto var(--spacing-lg);
    width: 160px;
    height: 160px;
}

.profile-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-color);
    box-shadow: var(--shadow-large);
    transition: all var(--transition-normal);
}

.profile-ring {
    position: absolute;
    inset: -8px;
    border: 2px solid transparent;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    background-clip: padding-box;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.profile-card:hover .profile-ring {
    opacity: 1;
    animation: rotate 3s linear infinite;
}

.profile-name {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.profile-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: var(--spacing-xs);
}

.profile-subtitle {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Hero Details Section */
.hero-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.detail-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.detail-card:hover {
    background: var(--glass-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.detail-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: white;
    flex-shrink: 0;
}

.detail-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.detail-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

.hero-quote {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.hero-quote blockquote {
    font-size: var(--font-size-lg);
    font-style: italic;
    color: var(--text-secondary);
    position: relative;
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    margin: 0;
}

/* Hero Actions */
.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: var(--font-size-base);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.btn-secondary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
    background: linear-gradient(135deg, var(--accent-light), var(--accent-color));
}

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

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

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.hero-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: var(--spacing-xs);
}

.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: clamp(1rem, 2vw, 2rem);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    position: absolute;
    top: 70px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    text-align: center;
    z-index: 1001;
}

.hero-tagline {
    font-size: clamp(1rem, 2.5vw, 1.8rem);
    color: var(--text-secondary);
    margin-top: clamp(4rem, 8vw, 6rem);
    text-align: center;
    max-width: 400px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: clamp(4rem, 8vw, 6rem);
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.hero-image {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: clamp(2rem, 4vw, 3rem);
}

.image-container {
    position: relative;
    width: 400px;
    height: 400px;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    opacity: 0;
    transform: scale(0.8);
    animation: scaleIn 1s ease-out 0.6s forwards;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    transition: transform var(--transition-slow);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(245, 158, 11, 0.1));
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.image-container:hover .profile-image {
    transform: scale(1.05);
}

.image-container:hover .image-overlay {
    opacity: 1;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    transform: rotate(45deg);
}

/* Section Styles */
section {
    padding: var(--spacing-4xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateY(30px);
    animation: slideInUp 0.8s ease-out forwards;
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    opacity: 0;
    transform: translateY(30px);
    animation: slideInUp 0.8s ease-out 0.2s forwards;
}

/* About Section */
.about {
    background: transparent;
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(245, 158, 11, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.about-name {
    font-size: var(--font-size-3xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.about-role {
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
}

.about-description {
    font-size: var(--font-size-lg);
    line-height: 1.7;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-medium), var(--shadow-glow);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large), var(--shadow-glow-strong);
    border-color: var(--border-glow);
}

.stat-item:hover::before {
    left: 100%;
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Experience Section */
.experience {
    background: transparent;
    position: relative;
}

.experience::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 80% 30%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 20% 70%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.experience-content {
    display: grid;
    gap: var(--spacing-3xl);
}

.experience-description,
.experience-leadership {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.experience-timeline {
    position: relative;
    padding: 0 var(--spacing-4xl);
    margin-top: var(--spacing-xl);
}

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    transform: translateX(-50%);
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.6), rgba(59, 130, 246, 0.1));
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-3xl);
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-3xl);
    align-items: stretch;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 4px solid var(--bg-secondary);
    box-shadow: 0 6px 12px rgba(37, 99, 235, 0.35);
    transform: translate(-50%, -50%);
}

.timeline-item:last-of-type {
    margin-bottom: 0;
}

.timeline-summary,
.timeline-details {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-medium);
    backdrop-filter: var(--glass-backdrop);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--spacing-sm);
}

.timeline-summary {
    text-align: right;
    align-items: flex-end;
    padding-right: calc(var(--spacing-xl) + var(--spacing-lg));
}

.timeline-details {
    text-align: left;
    align-items: flex-start;
    padding-left: calc(var(--spacing-xl) + var(--spacing-lg));
}

.timeline-summary::after,
.timeline-details::after {
    content: '';
    position: absolute;
    top: 50%;
    width: var(--spacing-lg);
    height: 2px;
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.4), rgba(59, 130, 246, 0));
    transform: translateY(-50%);
}

.timeline-summary::after {
    right: -var(--spacing-lg);
}

.timeline-details::after {
    left: -var(--spacing-lg);
    background: linear-gradient(270deg, rgba(59, 130, 246, 0.4), rgba(59, 130, 246, 0));
}

.timeline-period {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.timeline-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
}

.timeline-details p {
    margin-bottom: 0;
    color: var(--text-secondary);
}

/* Flip Card Layout */
.flip-card {
    position: relative;
    perspective: 1200px;
    cursor: pointer;
    height: 100%;
    border-radius: var(--radius-xl);
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 320px;
    transform-style: preserve-3d;
    transition: transform var(--transition-slow);
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    inset: 0;
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-medium), var(--shadow-glow);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--spacing-md);
    backface-visibility: hidden;
    transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.flip-card-back {
    transform: rotateY(180deg);
    overflow-y: auto;
    scrollbar-width: thin;
}

.flip-card-back::-webkit-scrollbar {
    width: 6px;
}

.flip-card-back::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.5);
    border-radius: var(--radius-full);
}

.flip-card-back::-webkit-scrollbar-track {
    background: transparent;
}

.flip-card.is-flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 4px;
}

.flip-card:hover .flip-card-front,
.flip-card:hover .flip-card-back {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-large), var(--shadow-glow-strong);
}

.flip-hint {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Vision Section */
.vision {
    background: transparent;
    position: relative;
}

.vision::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 50% 20%, rgba(245, 158, 11, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.vision-content {
    display: grid;
    gap: var(--spacing-4xl);
}

.vision-overview {
    display: grid;
    gap: var(--spacing-3xl);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    align-items: stretch;
}

.vision-quote-simple {
    padding: var(--spacing-3xl);
    background: var(--glass-bg);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-light);
}

.vision-quote-mark {
    display: block;
    font-size: var(--font-size-5xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    line-height: 1;
}

.vision-quote-simple p {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    font-style: italic;
    line-height: 1.6;
    margin: 0;
}

.vision-description {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-3xl);
    background: var(--glass-bg);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-light);
}

.vision-description p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

.vision-highlight {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-3xl);
    background: var(--glass-bg);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-medium);
}

.vision-highlight h3 {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.vision-highlight p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

/* Academic Section */
.academic {
    background: transparent;
    position: relative;
}

.academic::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 70% 20%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 30% 80%, rgba(245, 158, 11, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.academic-content {
    display: grid;
    gap: var(--spacing-4xl);
}

.academic-intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.academic-intro p {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
}

.academic-activities {
    display: grid;
    gap: var(--spacing-xl);
}

.activity-item {
    display: flex;
    gap: var(--spacing-xl);
    align-items: flex-start;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-medium), var(--shadow-glow);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.activity-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.5s ease;
}

.activity-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-large), var(--shadow-glow-strong);
    border-color: var(--border-glow);
}

.activity-item:hover::before {
    left: 100%;
}

.activity-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.activity-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.activity-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Values Section */
.values {
    background: transparent;
    position: relative;
}

.values::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(245, 158, 11, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.values-content {
    display: grid;
    gap: var(--spacing-4xl);
}

.values-citation {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

.values-citation blockquote {
    position: relative;
    display: inline-block;
    font-size: var(--font-size-2xl);
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.7;
    margin: 0 0 var(--spacing-lg);
    padding: 0 var(--spacing-xl);
}

.values-citation blockquote::before,
.values-citation blockquote::after {
    content: '“';
    position: absolute;
    top: -10px;
    font-size: var(--font-size-4xl);
    color: rgba(59, 130, 246, 0.3);
}

.values-citation blockquote::before {
    left: 0;
}

.values-citation blockquote::after {
    content: '”';
    right: 0;
    top: auto;
    bottom: -20px;
}

.values-citation figcaption {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
}

.value-item {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow-large), var(--shadow-glow);
    position: relative;
    overflow: hidden;
    display: grid;
    gap: var(--spacing-lg);
    min-height: 320px;
    text-align: left;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.value-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.15), transparent 65%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.value-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-large), var(--shadow-glow-strong);
}

.value-item:hover::before {
    opacity: 1;
}

.value-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
    position: relative;
    z-index: 1;
}

.value-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.value-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

/* Contact Section */
.contact {
    background: transparent;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 30%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(245, 158, 11, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact-item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium), var(--shadow-glow);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.5s ease;
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-large), var(--shadow-glow-strong);
    border-color: var(--border-glow);
}

.contact-item:hover::before {
    left: 100%;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.contact-details p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-form {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    padding: var(--spacing-3xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-large), var(--shadow-glow);
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.1), transparent);
    transition: left 0.5s ease;
}

.contact-form:hover::before {
    left: 100%;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    color: var(--text-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
    background: var(--bg-glass-light);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: var(--spacing-3xl) 0;
    position: relative;
    border-top: 1px solid var(--glass-border);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    object-fit: cover;
}

.footer-logo-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.footer-text p {
    color: var(--text-secondary);
    margin: 0;
}

.footer-social {
    display: flex;
    gap: var(--spacing-lg);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-light);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    border-color: var(--border-glow);
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
        text-align: center;
    }
    
    .hero-text {
        max-width: 640px;
        margin: 0 auto;
    }

    .hero-title {
        font-size: clamp(2.2rem, 6vw, 3rem);
    }

    .about-content,
    .experience-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }
    
    .vision-overview {
        grid-template-columns: 1fr 1fr;
    }

    .experience-timeline {
        padding: 0 var(--spacing-3xl);
    }

    .timeline-item {
        gap: var(--spacing-2xl);
    }

    .vision-highlight {
        padding: var(--spacing-2xl);
    }

    .vision-highlight h3 {
        font-size: var(--font-size-2xl);
    }
}

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
        text-align: center;
    }
    
    .image-wrapper {
        width: 280px;
        height: 360px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: var(--glass-backdrop);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-large);
        padding: var(--spacing-xl) 0;
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-top: none;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-image {
        order: -1;
        grid-row: 1;
    }
    
    .hero-text {
        order: 1;
        grid-row: 2;
        max-width: none;
        align-items: center;
        text-align: center;
        gap: var(--spacing-sm);
        margin-top: var(--spacing-2xl);
    }
    
    .hero-title {
        font-size: clamp(2rem, 7vw, 2.6rem);
    }
    
    .hero-subtitle {
        font-size: clamp(1rem, 4vw, 1.2rem);
        margin-bottom: clamp(5rem, 15vw, 8rem);
    }

    .hero-tagline {
        font-size: clamp(1rem, 3.8vw, 1.2rem);
        margin-top: clamp(3rem, 10vw, 5rem);
    }

    .flip-card-inner {
        min-height: 280px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        margin-top: clamp(3rem, 10vw, 5rem);
    }
    
    .image-container {
        width: 280px;
        height: 280px;
        margin: 0 auto;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .about-stats {
        flex-direction: row;
        justify-content: space-around;
    }
    
    .stat-item {
        flex: 1;
        margin: 0 var(--spacing-sm);
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .value-item {
        min-height: 280px;
        padding: var(--spacing-2xl);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .experience-timeline {
        padding: 0 0 0 var(--spacing-3xl);
    }

    .experience-timeline::before {
        left: var(--spacing-2xl);
        transform: none;
    }

    .timeline-marker {
        left: var(--spacing-2xl);
    }

    .timeline-item {
        grid-template-columns: 1fr;
        justify-items: stretch;
        gap: var(--spacing-xl);
        margin-bottom: var(--spacing-2xl);
    }

    .timeline-summary,
    .timeline-details {
        text-align: left;
        align-items: flex-start;
        padding: var(--spacing-lg);
    }

    .timeline-summary,
    .timeline-details {
        padding-left: calc(var(--spacing-lg) + var(--spacing-md));
    }

    .timeline-summary::after,
    .timeline-details::after {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .hero-image {
        order: -1;
        grid-row: 1;
    }
    
    .hero-text {
        order: 1;
        grid-row: 2;
        gap: var(--spacing-xs);
        margin-top: var(--spacing-2xl);
    }
    
    .hero-title {
        font-size: clamp(1.8rem, 8vw, 2.3rem);
    }
    
    .hero-subtitle {
        font-size: clamp(0.95rem, 4.5vw, 1.1rem);
        margin-bottom: clamp(3rem, 12vw, 5rem);
    }

    .hero-tagline {
        font-size: clamp(0.95rem, 4.5vw, 1.1rem);
        margin-top: clamp(2rem, 8vw, 4rem);
    }

    .hero-buttons {
        margin-top: clamp(2rem, 8vw, 4rem);
    }
    
    .image-container {
        width: 250px;
        height: 250px;
        margin: 0 auto;
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .about-stats {
        flex-direction: column;
    }

    .flip-card-inner {
        min-height: 260px;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }

    .value-item {
        padding: var(--spacing-xl);
        min-height: initial;
    }

    .value-title {
        font-size: var(--font-size-xl);
    }

    .value-description {
        font-size: var(--font-size-base);
    }

    .vision-overview {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .vision-highlight {
        padding: var(--spacing-xl);
    }

    .vision-highlight h3 {
        font-size: var(--font-size-xl);
    }

    .vision-highlight p {
        font-size: var(--font-size-lg);
    }
    
    .contact-form {
        padding: var(--spacing-xl);
    }

    .experience-timeline {
        padding-left: var(--spacing-2xl);
    }

    .experience-timeline::before,
    .timeline-marker {
        left: var(--spacing-xl);
    }
}

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading animation */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out;
}

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

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

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

/* Glassmorphism Animations */
@keyframes glassShimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

@keyframes glassFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes glassGlow {
    0%, 100% {
        box-shadow: var(--shadow-medium), var(--shadow-glow);
    }
    50% {
        box-shadow: var(--shadow-large), var(--shadow-glow-strong);
    }
}

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

/* Glassmorphism Effects */
.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-medium), var(--shadow-glow);
    position: relative;
    overflow: hidden;
}

.glass-effect::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: glassShimmer 3s ease-in-out infinite;
}

.glass-effect:hover {
    animation: glassFloat 2s ease-in-out infinite, glassGlow 2s ease-in-out infinite;
}

/* Enhanced Glassmorphism for Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-medium), var(--shadow-glow);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large), var(--shadow-glow-strong);
    border-color: var(--border-glow);
}

/* Floating Glass Elements */
.floating-glass {
    animation: glassFloat 3s ease-in-out infinite;
}

.floating-glass:nth-child(2) {
    animation-delay: 0.5s;
}

.floating-glass:nth-child(3) {
    animation-delay: 1s;
}

/* Glass Morphism Button */
.btn-glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.btn-glass::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 0.5s ease;
}

.btn-glass:hover::before {
    left: 100%;
}

.btn-glass:hover {
    background: var(--primary-color);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}