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

:root {
    /* Modern Color Palette */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #0ea5e9;
    --accent-color: #f59e0b;
    
    /* Neutral Colors */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-text: linear-gradient(135deg, #667eea 0%, #00f2fe 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #00f2fe 50%, #a855f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: shimmer 3s linear infinite;
}

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

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: all var(--transition-base);
}

.logo-initials {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.05em;
    transition: all var(--transition-base);
}

.logo:hover .logo-initials {
    transform: scale(1.1);
    letter-spacing: 0.05em;
}

/* Legacy logo styles kept for compatibility */
.logo::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(99, 102, 241, 0.05);
    border-radius: 16px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.logo:hover::before {
    opacity: 1;
}

.logo-avatar {
    position: relative;
    width: 50px;
    height: 50px;
    flex-shrink: 0;
}

.logo-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid transparent;
    background: linear-gradient(white, white) padding-box,
                var(--gradient-primary) border-box;
    transition: all var(--transition-base);
    position: relative;
    z-index: 2;
}

.logo-ring {
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0;
    filter: blur(8px);
    transition: all var(--transition-base);
    z-index: 1;
}

.logo:hover .logo-ring {
    opacity: 0.6;
    inset: -5px;
}

.logo:hover .logo-img {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.logo-text-group {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    position: relative;
    z-index: 2;
}

.logo-name {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
    transition: all var(--transition-base);
}

.logo-subtitle {
    font-family: var(--font-primary);
    font-size: 0.7rem;
    font-weight: 500;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    opacity: 0.8;
    transition: all var(--transition-base);
}

.logo:hover .logo-name {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo:hover .logo-subtitle {
    opacity: 1;
    letter-spacing: 0.1em;
}

/* Legacy styles kept for compatibility */
.logo-image-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    background: var(--gradient-primary);
    padding: 2px;
    transition: all var(--transition-base);
}

.logo-image-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    border-radius: 12px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.logo:hover .logo-image-wrapper {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.logo:hover .logo-image-wrapper::before {
    opacity: 0.2;
}

.logo-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
    display: block;
    transition: all var(--transition-base);
}

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

.logo-content {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.logo-tagline {
    font-family: var(--font-primary);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: var(--transition-base);
}

.logo:hover .logo-tagline {
    color: var(--primary-light);
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 800;
    color: white;
    letter-spacing: -0.05em;
    transition: all var(--transition-base);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.logo:hover .logo-icon {
    transform: scale(1.05) rotate(-5deg);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.5);
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: var(--transition-base);
    letter-spacing: -0.01em;
}

.logo-accent {
    color: var(--primary-color);
    font-size: 2rem;
}

.logo:hover .logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-base);
    position: relative;
}

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

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

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-base);
    border-radius: 2px;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    border-radius: 12px;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: -1;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--gradient-primary);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--gradient-accent);
    bottom: -150px;
    left: -100px;
    animation-delay: 7s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: var(--gradient-secondary);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 14s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(120deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(240deg);
    }
}

.hero-content {
    max-width: 900px;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-light);
    margin-bottom: var(--spacing-md);
    animation: pulse 2s ease-in-out infinite;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

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

.hero-title {
    font-size: clamp(1.75rem, 4vw, 2.8rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    animation: fadeInUp 0.8s ease-out;
    font-family: var(--font-heading);
    letter-spacing: -0.03em;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.hero-subtitle {
    font-size: clamp(0.95rem, 1.5vw, 1.15rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out 0.2s both;
    max-width: 800px;
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: 0.01em;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out 0.6s both;
    flex-wrap: wrap;
}

.hero-availability {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    color: var(--text-secondary);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out 0.7s both;
    max-width: 700px;
    line-height: 1.6;
}

.hero-availability i {
    color: var(--primary-color);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.hero-social {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.social-link {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 1.25rem;
    text-decoration: none;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

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

/* ===================================
   Section Headers
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

/* ===================================
   About Section
   =================================== */
.about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(99, 102, 241, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: var(--transition-base);
}

.highlight-item:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateX(5px);
}

.highlight-item i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.highlight-item span {
    font-weight: 500;
    color: var(--text-primary);
}

.about-image {
    position: relative;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.2;
    filter: blur(60px);
    z-index: -1;
}

.image-wrapper {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    aspect-ratio: 4/5;
    max-width: 450px;
    margin: 0 auto;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.image-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(99, 102, 241, 0.1) 0%,
        rgba(14, 165, 233, 0.1) 100%
    );
    z-index: 1;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.image-wrapper:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 30px 80px rgba(0, 0, 0, 0.6),
        0 0 0 1px rgba(255, 255, 255, 0.2),
        0 0 40px rgba(99, 102, 241, 0.3);
}

.image-wrapper:hover::before {
    opacity: 1;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.3);
}

.profile-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
    filter: brightness(1.05) contrast(1.05);
    transition: all var(--transition-base);
}

.image-wrapper:hover .profile-photo {
    filter: brightness(1.1) contrast(1.1);
    transform: scale(1.05);
}

/* ===================================
   Education Section
   =================================== */
.education {
    padding: var(--spacing-xl) 0;
    background: var(--bg-primary);
}

.education-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    padding-left: 60px;
}

.education-timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.education-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease-out both;
}

.education-item:nth-child(1) { animation-delay: 0.1s; }
.education-item:nth-child(2) { animation-delay: 0.2s; }
.education-item:nth-child(3) { animation-delay: 0.3s; }

.education-icon {
    position: absolute;
    left: -48px;
    top: 0;
    width: 42px;
    height: 42px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.education-content {
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: var(--spacing-md);
    position: relative;
    transition: all var(--transition-base);
}

.education-content:hover {
    transform: translateX(8px);
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.2);
}

.education-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.education-degree {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.education-school {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.education-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.education-focus {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.focus-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all var(--transition-base);
}

.focus-tag:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.focus-tag i {
    color: var(--primary);
}

/* ===================================
   Expertise Section
   =================================== */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.expertise-card {
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-base);
}

.expertise-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(99, 102, 241, 0.3);
}

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

.card-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    margin-bottom: var(--spacing-sm);
    transition: var(--transition-base);
}

.expertise-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.card-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.card-list {
    list-style: none;
}

.card-list li {
    padding: 0.5rem 0;
    color: var(--text-muted);
    position: relative;
    padding-left: 1.5rem;
}

.card-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* ===================================
   Experience Timeline
   =================================== */
.experience {
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-color), transparent);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-lg);
}

.timeline-dot {
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border: 3px solid var(--bg-secondary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.timeline-content {
    background: var(--bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: var(--spacing-md);
    transition: var(--transition-base);
}

.timeline-content:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateX(8px);
}

.timeline-date {
    font-size: 0.875rem;
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.timeline-company {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.timeline-location {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.timeline-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.timeline-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    padding: 0.375rem 0.75rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    font-size: 0.8125rem;
    color: var(--primary-light);
    font-weight: 500;
}

/* ===================================
   Insights Section
   =================================== */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.insight-card {
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    overflow: hidden;
    transition: all var(--transition-base);
}

.insight-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(99, 102, 241, 0.3);
}

.insight-image {
    height: 200px;
    background: var(--gradient-primary);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.insight-category {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.95);
    color: var(--bg-primary);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.insight-content {
    padding: var(--spacing-md);
}

.insight-date {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.insight-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.insight-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.insight-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-base);
}

.insight-link:hover {
    gap: 0.75rem;
    color: var(--primary-color);
}

/* ===================================
   Testimonials Section
   =================================== */
.testimonials {
    background: var(--bg-secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background: var(--bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: var(--spacing-md);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-xl);
}

.testimonial-rating {
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.testimonial-text {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

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

.author-name {
    font-weight: 600;
    color: var(--text-primary);
}

.author-role {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ===================================
   Social Impact Section
   =================================== */
.social-impact {
    padding: var(--spacing-xl) 0;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.social-impact::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.impact-card {
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    text-align: center;
}

.impact-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.impact-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    transition: all var(--transition-base);
}

.impact-card:hover .impact-icon {
    transform: scale(1.1) rotate(5deg);
}

.impact-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.impact-stat {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-sm);
}

.impact-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

.impact-mission {
    margin-top: var(--spacing-xl);
    text-align: center;
    position: relative;
    z-index: 1;
}

.community-engagement {
    margin-top: var(--spacing-xl);
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.engagement-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.engagement-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: rgba(99, 102, 241, 0.05);
    border-radius: 12px;
    transition: all var(--transition-base);
}

.engagement-item:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateX(8px);
}

.engagement-item i {
    font-size: 1.25rem;
    color: var(--primary);
    min-width: 24px;
}

.engagement-item span {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.mission-quote {
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: var(--spacing-lg);
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.mission-quote i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.mission-quote p {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--spacing-sm) 0;
    font-style: italic;
}

.quote-author {
    display: block;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: var(--spacing-sm);
}

/* ===================================
   Books Section
   =================================== */
.books {
    padding: var(--spacing-xl) 0;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.books::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

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

.book-card {
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.book-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.book-icon {
    width: 70px;
    height: 70px;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    transition: all var(--transition-base);
}

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

.book-content {
    flex: 1;
}

.book-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.book-author {
    font-size: 0.875rem;
    color: var(--primary-light);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.book-description {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ===================================
   Contact Section
   =================================== */
.contact-content-centered {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-content-centered .section-header {
    text-align: center;
}

.contact-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    text-decoration: none;
    transition: var(--transition-base);
    text-align: left;
}

.contact-method:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-5px);
}

.method-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.method-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.method-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--bg-secondary);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-base);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--primary-light);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-bottom p {
    margin: 0.25rem 0;
}

/* ===================================
   Scroll to Top Button
   =================================== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .expertise-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-md);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .about-highlights {
        grid-template-columns: 1fr;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-methods {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: 1.5rem;
    }
    
    .timeline-dot {
        left: -2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .scroll-to-top {
        bottom: 1rem;
        right: 1rem;
    }
}

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

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

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

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