/* ===================================
   MODERN iAI TECH - PROFESSIONAL STYLES
   Purple-Cyan Theme with Smooth Animations
   =================================== */

/* ===================================
   CSS VARIABLES - COLOR SYSTEM
   =================================== */
:root {
    /* Primary Colors - Deep Purple & Cyan */
    --color-primary: #6366F1;        /* Indigo */
    --color-primary-dark: #4F46E5;   /* Deep Indigo */
    --color-primary-light: #818CF8;  /* Light Indigo */
    
    --color-accent: #06B6D4;         /* Cyan */
    --color-accent-dark: #0891B2;    /* Dark Cyan */
    --color-accent-light: #22D3EE;   /* Light Cyan */
    
    /* Neutral Colors */
    --color-dark: #0F172A;           /* Slate 900 */
    --color-dark-2: #1E293B;         /* Slate 800 */
    --color-dark-3: #334155;         /* Slate 700 */
    
    --color-light: #F8FAFC;          /* Slate 50 */
    --color-light-2: #F1F5F9;        /* Slate 100 */
    --color-light-3: #E2E8F0;        /* Slate 200 */
    
    --color-text: #1E293B;           /* Dark text */
    --color-text-muted: #64748B;     /* Muted text */
    --color-text-light: #94A3B8;     /* Light text */
    
    /* Success/Warning/Error */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    --gradient-dark: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-2) 100%);
    --gradient-mesh: radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
                      radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.15) 0px, transparent 50%);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;
    
    /* Borders & Shadows */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* ===================================
   ANIMATED BACKGROUND
   =================================== */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: var(--color-dark);
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float-orb 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.3) 0%, transparent 70%);
    top: -300px;
    left: -300px;
    animation-delay: 0s;
}

.orb-2 {
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.25) 0%, transparent 70%);
    bottom: -400px;
    right: -400px;
    animation-delay: -10s;
}

.orb-3 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -5s;
}

@keyframes float-orb {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.grid-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

/* ===================================
   UTILITIES
   =================================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

.fade-in-up {
    animation: fade-in-up 0.8s ease-out forwards;
    opacity: 0;
}

.card-animate {
    animation: fade-in-up 0.8s ease-out forwards;
    opacity: 0;
}

/* Gradient Text */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
    transition: var(--transition-base);
}

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

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-md);
    padding-bottom: var(--space-md);
}

.logo-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: var(--transition-base);
}

.logo-link:hover {
    transform: translateY(-2px);
}

.logo-img {
    width: 65px;
    height: 65px;
    border-radius: 50%;
    border: 3px solid var(--color-primary);
    box-shadow: 0 0 25px rgba(99, 102, 241, 0.6);
    animation: logo-pulse 3s ease-in-out infinite;
    position: relative;
}

@keyframes logo-pulse {
    0%, 100% {
        box-shadow: 0 0 25px rgba(99, 102, 241, 0.6),
                    0 0 40px rgba(99, 102, 241, 0.3);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 35px rgba(99, 102, 241, 0.8),
                    0 0 60px rgba(99, 102, 241, 0.4),
                    0 0 80px rgba(6, 182, 212, 0.2);
        transform: scale(1.05);
    }
}

.logo-text {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-light);
    position: relative;
    animation: logo-shimmer 4s ease-in-out infinite;
}

@keyframes logo-shimmer {
    0%, 100% {
        text-shadow: 0 0 10px rgba(99, 102, 241, 0.3);
    }
    50% {
        text-shadow: 0 0 20px rgba(99, 102, 241, 0.6),
                     0 0 30px rgba(6, 182, 212, 0.3);
    }
}

.logo-accent {
    color: var(--color-accent);
    animation: accent-glow 2s ease-in-out infinite alternate;
}

@keyframes accent-glow {
    from {
        color: var(--color-accent);
        text-shadow: 0 0 10px rgba(6, 182, 212, 0.5);
    }
    to {
        color: var(--color-accent-light);
        text-shadow: 0 0 20px rgba(6, 182, 212, 0.8),
                     0 0 30px rgba(6, 182, 212, 0.4);
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-xs);
    z-index: 1001;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--color-light);
    border-radius: 2px;
    transition: var(--transition-base);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translateY(6px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translateY(-6px);
}

/* Navigation */
.nav {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
}

.nav-link {
    color: var(--color-light-3);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: var(--space-xs) 0;
    transition: var(--transition-base);
}

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

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

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

.nav-link--cta {
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 600;
}

.nav-link--cta::after {
    display: none;
}

.nav-link--cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: calc(80px + var(--space-2xl));
    padding-bottom: var(--space-3xl);
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-content {
    color: var(--color-light);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary-light);
    margin-bottom: var(--space-lg);
}

.badge-icon {
    font-size: 1.2rem;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-light-3);
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-2xl);
}

/* Impact Stats */
.impact-stats {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.stat-item {
    flex: 1;
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, 
        var(--color-primary) 0%,
        var(--color-accent) 50%,
        var(--color-primary-light) 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-xs);
    animation: stat-shine 3s ease-in-out infinite;
}

@keyframes stat-shine {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-light-3);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(99, 102, 241, 0.3);
}

/* Hero Showcase */
.hero-showcase {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

/* Fancy animated border glow */
.hero-showcase::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, 
        var(--color-primary), 
        var(--color-accent),
        var(--color-primary-light),
        var(--color-accent-light));
    background-size: 300% 300%;
    border-radius: var(--radius-xl);
    z-index: -1;
    animation: gradient-rotate 8s ease infinite;
    opacity: 0.5;
}

@keyframes gradient-rotate {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Spotlight effect */
.hero-showcase::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    animation: spotlight-move 10s ease-in-out infinite;
    pointer-events: none;
}

@keyframes spotlight-move {
    0%, 100% { transform: translate(0%, 0%) scale(1); }
    25% { transform: translate(20%, 20%) scale(1.1); }
    50% { transform: translate(-10%, 30%) scale(0.9); }
    75% { transform: translate(30%, -20%) scale(1.05); }
}

.showcase-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.showcase-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-light);
}

.carousel-controls {
    display: flex;
    gap: var(--space-xs);
}

.carousel-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-sm);
    color: var(--color-primary-light);
    transition: var(--transition-base);
}

.carousel-btn:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

/* Projects Carousel */
.projects-carousel {
    position: relative;
    min-height: 320px;
}

.project-slide {
    display: none;
    animation: slide-in 0.5s ease-out;
}

.project-slide.active {
    display: block;
}

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

.project-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    display: inline-block;
    animation: icon-float 3s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.5));
}

@keyframes icon-float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.5));
    }
    50% {
        transform: translateY(-15px) rotate(5deg);
        filter: drop-shadow(0 0 30px rgba(6, 182, 212, 0.7));
    }
}

/* Special eye animation for 👁️ emoji */
.project-slide:nth-child(3) .project-icon {
    animation: eye-blink 4s ease-in-out infinite;
}

@keyframes eye-blink {
    0%, 90%, 100% {
        transform: translateY(0px) scale(1);
        filter: drop-shadow(0 0 25px rgba(99, 102, 241, 0.6));
    }
    45% {
        transform: translateY(-12px) scale(1.1);
        filter: drop-shadow(0 0 35px rgba(6, 182, 212, 0.8))
                drop-shadow(0 0 50px rgba(99, 102, 241, 0.4));
    }
    47%, 49% {
        transform: scaleY(0.1) translateY(-12px);
    }
    48% {
        transform: scaleY(1) translateY(-12px);
    }
}

.project-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.project-desc {
    color: var(--color-light-3);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tag {
    padding: 0.4rem 0.75rem;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent-light);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.tag::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, 
        transparent 30%, 
        rgba(6, 182, 212, 0.3) 50%, 
        transparent 70%);
    animation: tag-shimmer 3s ease-in-out infinite;
    animation-delay: calc(var(--tag-index, 0) * 0.2s);
}

@keyframes tag-shimmer {
    0%, 100% { transform: translateX(-100%) translateY(-100%) rotate(0deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(180deg); }
}

.tag:hover {
    background: rgba(6, 182, 212, 0.2);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
}

/* Carousel Indicators */
.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.3);
    transition: var(--transition-base);
}

.indicator.active {
    background: var(--color-primary);
    transform: scale(1.3);
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.875rem 1.75rem;
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    cursor: pointer;
}

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

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.8) 0%, transparent 60%);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

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

.btn-primary::after {
    content: '✨';
    position: absolute;
    top: 10%;
    right: 10%;
    font-size: 0.8rem;
    opacity: 0;
    animation: sparkle 3s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% {
        opacity: 0;
        transform: translateY(0) rotate(0deg);
    }
    50% {
        opacity: 1;
        transform: translateY(-5px) rotate(180deg);
    }
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--color-light);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary-light);
}

.btn-outline:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
}

.btn-icon {
    transition: var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(3px);
}

/* ===================================
   SECTIONS
   =================================== */
section {
    padding: var(--space-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary-light);
    margin-bottom: var(--space-md);
    position: relative;
    overflow: hidden;
}

.section-badge::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    animation: badge-pulse 3s ease-in-out infinite;
}

@keyframes badge-pulse {
    0%, 100% {
        width: 0;
        height: 0;
        opacity: 0.5;
    }
    50% {
        width: 200%;
        height: 200%;
        opacity: 0;
    }
}

.section-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-light);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--color-light-3);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===================================
   IMPACT SECTION
   =================================== */
.impact-section {
    background: rgba(30, 41, 59, 0.5);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.impact-card {
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
}

.impact-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.impact-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    display: inline-block;
    animation: impact-float 4s ease-in-out infinite;
    filter: drop-shadow(0 5px 15px rgba(99, 102, 241, 0.3));
}

@keyframes impact-float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-10px) rotate(-5deg);
    }
    50% {
        transform: translateY(-5px) rotate(0deg);
    }
    75% {
        transform: translateY(-10px) rotate(5deg);
    }
}

.impact-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-light);
    margin-bottom: var(--space-sm);
}

.impact-metric {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--space-md);
}

.impact-desc {
    color: var(--color-light-3);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.impact-footer {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.impact-tag {
    padding: 0.3rem 0.75rem;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent-light);
}

/* ===================================
   FRVP SECTION
   =================================== */
.frvp-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-3xl);
    align-items: start;
}

.frvp-gallery {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    backdrop-filter: blur(10px);
}

.gallery-main {
    position: relative;
    width: 100%;
    height: 500px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: rgba(0, 0, 0, 0.3);
    margin-bottom: var(--space-md);
    box-shadow: inset 0 0 50px rgba(0, 0, 0, 0.5);
}

.gallery-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transform: scale(1.1);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.gallery-image.active {
    opacity: 1;
    transform: scale(1);
}

/* Add glow effect to active gallery */
.frvp-gallery {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    backdrop-filter: blur(10px);
    position: relative;
    transition: all 0.3s ease;
}

.frvp-gallery::before {
    content: '';
    position: absolute;
    inset: -1px;
    background: linear-gradient(45deg, 
        rgba(99, 102, 241, 0.3),
        rgba(6, 182, 212, 0.3),
        rgba(99, 102, 241, 0.3));
    background-size: 200% 200%;
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0;
    animation: gallery-glow 4s ease-in-out infinite;
    transition: opacity 0.3s ease;
}

@keyframes gallery-glow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.frvp-gallery:hover::before {
    opacity: 1;
}

.gallery-thumbnails {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-xs);
}

.thumbnail {
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid transparent;
    transition: var(--transition-base);
    cursor: pointer;
    position: relative;
}

.thumbnail::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(99, 102, 241, 0.2), 
        rgba(6, 182, 212, 0.2));
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.thumbnail:hover {
    border-color: var(--color-accent);
    transform: scale(1.05);
}

.thumbnail:hover img {
    transform: scale(1.1);
}

.thumbnail.active {
    border-color: var(--color-primary);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
    animation: thumbnail-pulse 2s ease-in-out infinite;
}

@keyframes thumbnail-pulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
    }
    50% {
        box-shadow: 0 0 30px rgba(99, 102, 241, 0.8),
                    0 0 40px rgba(6, 182, 212, 0.4);
    }
}

/* FRVP Details */
.frvp-details {
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
}

.details-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-light);
    margin-bottom: var(--space-md);
}

.details-text {
    color: var(--color-light-3);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.achievements-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.achievement-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(99, 102, 241, 0.05);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--radius-sm);
}

.achievement-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.achievement-item strong {
    display: block;
    color: var(--color-light);
    margin-bottom: 0.25rem;
}

.achievement-item p {
    color: var(--color-light-3);
    font-size: 0.875rem;
}

/* ===================================
   RESEARCH SECTION
   =================================== */
.research-section {
    background: rgba(30, 41, 59, 0.5);
}

.research-diagram {
    padding: var(--space-2xl);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
}

.diagram-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.diagram-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-light);
    margin-bottom: var(--space-sm);
}

.diagram-subtitle {
    font-size: 1.125rem;
    color: var(--color-accent-light);
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.system-card {
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.system-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-xl);
}

.system-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.system-icon {
    font-size: 2.5rem;
}

.system-name {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-light);
}

.system-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.system-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm);
    background: rgba(99, 102, 241, 0.05);
    border-radius: var(--radius-sm);
}

.system-stat .stat-label {
    font-size: 0.875rem;
    color: var(--color-light-3);
}

.system-stat .stat-value {
    font-weight: 600;
    color: var(--color-accent-light);
    font-size: 0.875rem;
}

.system-feature {
    padding: var(--space-sm);
    background: rgba(6, 182, 212, 0.1);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-sm);
    color: var(--color-light);
    font-weight: 500;
    font-size: 0.875rem;
}

/* ===================================
   PUBLICATIONS SECTION
   =================================== */
.publications-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.publication-item {
    position: relative;
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.03);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
}

.publication-item:hover {
    transform: translateX(8px);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: var(--shadow-lg);
}

.pub-badge {
    display: inline-block;
    padding: 0.4rem 0.75rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.pub-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-light);
    margin-bottom: var(--space-sm);
    line-height: 1.6;
}

.pub-authors {
    color: var(--color-accent-light);
    font-weight: 500;
    margin-bottom: var(--space-xs);
    font-size: 0.95rem;
}

.pub-venue {
    color: var(--color-light-3);
    font-style: italic;
    margin-bottom: var(--space-md);
    font-size: 0.95rem;
}

.pub-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

/* ===================================
   AWARDS SECTION
   =================================== */
.awards-section {
    background: rgba(30, 41, 59, 0.5);
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.award-card {
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
}

.award-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.award-year {
    display: inline-block;
    padding: 0.3rem 0.75rem;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-accent-light);
    margin-bottom: var(--space-md);
}

.award-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.award-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-light);
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.award-org {
    color: var(--color-primary-light);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.award-desc {
    color: var(--color-light-3);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.award-link {
    color: var(--color-accent);
    font-weight: 600;
    transition: var(--transition-base);
}

.award-link:hover {
    color: var(--color-accent-light);
    text-decoration: underline;
}

/* ===================================
   TEAM SECTION
   =================================== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.team-card {
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
}

.team-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.team-card--featured {
    border-color: var(--color-primary);
    background: rgba(99, 102, 241, 0.05);
}

.team-image {
    position: relative;
    width: 150px;
    height: 150px;
    margin: 0 auto var(--space-lg);
    border-radius: 50%;
    border: 3px solid var(--color-primary);
    overflow: hidden;
    box-shadow: var(--shadow-glow);
}

.team-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-image-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
}

.team-content {
    text-align: center;
}

.team-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-light);
    margin-bottom: var(--space-xs);
}

.team-role {
    color: var(--color-accent-light);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.team-credentials {
    color: var(--color-light-3);
    font-style: italic;
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
}

.team-bio {
    color: var(--color-light-3);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.team-actions {
    display: flex;
    justify-content: center;
    margin-top: var(--space-lg);
}

/* ===================================
   CTA SECTION
   =================================== */
.cta-section {
    background: var(--gradient-dark);
    padding: var(--space-3xl) 0;
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-light);
    margin-bottom: var(--space-md);
}

.cta-subtitle {
    font-size: 1.25rem;
    color: var(--color-light-3);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--color-dark-2);
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-light);
    margin-bottom: var(--space-md);
}

.footer-logo span {
    color: var(--color-accent);
}

.footer-tagline {
    color: var(--color-light-3);
    line-height: 1.8;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.footer-heading {
    font-weight: 700;
    color: var(--color-light);
    margin-bottom: var(--space-md);
}

.footer-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-list a {
    color: var(--color-light-3);
    transition: var(--transition-base);
}

.footer-list a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    text-align: center;
}

.footer-copyright {
    color: var(--color-light-3);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
    :root {
        font-size: 15px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .frvp-content {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }
    
    /* Mobile Navigation */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        max-width: 300px;
        height: calc(100vh - 70px);
        flex-direction: column;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--space-xl);
        gap: var(--space-md);
        border-left: 1px solid rgba(99, 102, 241, 0.2);
        transition: right 0.3s ease;
        align-items: flex-start;
    }
    
    .nav.active {
        right: 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .impact-stats {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .stat-divider {
        width: 100%;
        height: 1px;
    }
    
    .gallery-thumbnails {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .gallery-main {
        height: 300px;
    }
    
    .team-grid,
    .awards-grid,
    .systems-grid {
        grid-template-columns: 1fr;
    }
}

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

/* Focus States */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}