/* CSS Variables for Balanced Blue-Green Theme */
:root {
    /* Background Colors */
    --background: #0B1117;
    --secondary-bg: #101A22;
    --card-bg: #14212B;
    
    /* Blue (Tech Tone) */
    --primary-blue: #00AEEF;
    --dark-blue: #008FCC;
    --blue-glow: rgba(0, 174, 239, 0.35);
    
    /* Green (Energy Tone) */
    --primary-green: #00E676;
    --bright-green: #00F5A0;
    --dark-green: #00C853;
    --green-glow: rgba(0, 230, 118, 0.35);
    
    /* Text Colors */
    --text-primary: #E6F1F7;
    --text-muted: #8FA3B0;
    --border-color: #1E2A33;
    
    /* Gradients */
    --gradient-text: linear-gradient(135deg, #00F5A0 0%, #00AEEF 100%);
    --gradient-cta: linear-gradient(135deg, #00E676 0%, #009FE3 100%);
    --gradient-hover: linear-gradient(135deg, #00F5A0 0%, #008FCC 100%);
    --gradient-bg: linear-gradient(135deg, var(--background) 0%, var(--secondary-bg) 100%);
    
    /* Legacy mappings for compatibility */
    --primary-accent: var(--primary-green);
    --secondary-accent: var(--primary-blue);
    --primary-red: var(--primary-green);
    --dark-red: var(--dark-green);
    --light-red: var(--bright-green);
    --accent-red: var(--primary-blue);
    --black: var(--background);
    --dark-gray: var(--secondary-bg);
    --medium-gray: var(--card-bg);
    --light-gray: var(--card-bg);
    --white: var(--text-primary);
    --text-light: var(--text-primary);
    --text-dark: var(--text-muted);
    --text-secondary: var(--text-muted);
    --gradient-primary: var(--gradient-cta);
    --gradient-secondary: var(--gradient-bg);
    --shadow-red: 0 0 30px var(--green-glow);
    --shadow-dark: 0 10px 30px rgba(0, 0, 0, 0.5);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Inter', sans-serif;
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 62.5%; /* 1rem = 10px */
}

body {
    font-family: var(--font-primary);
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    font-size: 1.6rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.2rem 2.4rem;
    font-size: 1.4rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-cta);
    color: var(--white);
    box-shadow: 0 0 30px var(--green-glow);
}

.btn-primary:hover {
    background: var(--gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 40px var(--green-glow), 0 0 20px var(--blue-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    transform: translateY(-2px);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 6rem;
}

.section-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-text);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.8rem;
    color: var(--text-dark);
    max-width: 600px;
    margin: 0 auto;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(11, 17, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(11, 17, 23, 0.98);
    box-shadow: 0 0 20px var(--green-glow);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    font-size: 2.4rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    transition: var(--transition);
}

.nav-logo:hover {
    opacity: 0.8;
}

.logo-image {
    height: 40px;
    width: auto;
    border-radius: 50%;
}

.logo-text {
    color: var(--white);
    font-weight: 700;
}

.logo-text {
    color: var(--white);
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

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

/* Mobile Navigation */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 5px;
}

.nav-hamburger span {
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, var(--green-glow) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, var(--blue-glow) 0%, transparent 50%);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.float-element {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 2px solid var(--primary-green);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

.float-element:nth-child(2) {
    animation-delay: -2s;
    width: 60px;
    height: 60px;
    border-color: var(--primary-blue);
}

.float-element:nth-child(3) {
    animation-delay: -4s;
    width: 80px;
    height: 80px;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-container {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 2rem;
}

.college-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    margin-top: 4rem;
    margin-bottom: 4rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.logo-left, .logo-right {
    display: flex;
    justify-content: center;
    align-items: center;
}

.college-logo {
    height: 100px;
    width: 100px;
    object-fit: cover;
    transition: var(--transition);
    border-radius: 50%;
    border: 3px solid transparent;
}

.college-logo:hover {
    transform: scale(1.1);
    border-color: var(--bright-green);
    box-shadow: 0 8px 25px var(--green-glow);
}

.hero-title {
    font-size: 5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(50px);
    animation: slideUp 1.5s ease-out forwards;
}

.title-line:nth-child(2) {
    animation-delay: 0.4s;
}

.title-line:nth-child(3) {
    animation-delay: 0.8s;
}

.title-line.highlight {
    background: var(--gradient-text);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@keyframes slideUp {
    0% {
        opacity: 0;
        transform: translateY(60px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 1.7rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 4rem;
}

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

.stat-number {
    display: block;
    font-size: 4rem;
    font-weight: 800;
    background: var(--gradient-text);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.4rem;
    color: var(--text-dark);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-dark);
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-line {
    width: 2px;
    height: 30px;
    background: var(--gradient-text);
    margin: 0 auto 1rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* About Section */
/* About Section - Complete Rewrite */
.about {
    padding: 8rem 0;
    background: var(--gradient-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-bottom: 5rem;
}

/* About Section Cards - Always Visible */
.about-card {
    background: var(--card-bg);
    padding: 3rem 2rem;
    border-radius: 15px;
    text-align: center;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    opacity: 1;
    transform: translateY(0);
}

.about-card:hover {
    transform: translateY(-8px);
    border-color: var(--bright-green);
    box-shadow: 0 15px 40px var(--green-glow), 0 5px 20px var(--blue-glow);
}

.card-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-cta);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 2rem;
    color: white;
}

.about-card h3 {
    font-size: 2.2rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
    font-weight: 700;
}

.about-card p {
    font-size: 1.4rem;
    color: var(--text-primary);
    line-height: 1.6;
}

.card-content {
    display: block;
    margin-top: 1.5rem;
}

.content-point {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1rem 1.5rem;
    background: rgba(0, 230, 118, 0.1);
    border-radius: 10px;
    margin-bottom: 1rem;
    border-left: 4px solid var(--primary-green);
    transition: all 0.3s ease;
}

.content-point:hover {
    background: rgba(0, 230, 118, 0.2);
    border-left-color: var(--bright-green);
    transform: translateX(8px);
}

.content-point i {
    background: var(--gradient-text);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 1.4rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.content-point span {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 1.4;
}

/* Events Section */
.events {
    padding: 10rem 0;
    background: var(--black);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.event-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.event-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--green-glow) 0%, transparent 70%),
                linear-gradient(225deg, var(--blue-glow) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition);
}

.event-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 30px var(--green-glow), 0 0 15px var(--blue-glow);
    border-color: var(--primary-green);
}

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

/* Event image slider */
.event-slider {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

.event-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.event-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.event-slide.active {
    opacity: 1;
    pointer-events: auto;
}

.event-slide .event-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.event-card:hover .event-slide.active .event-image {
    transform: scale(1.03);
}

.event-dots {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.6rem;
    z-index: 3;
}

.event-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.event-dot:hover,
.event-dot.active {
    background: var(--bright-green);
    box-shadow: 0 0 10px var(--green-glow);
    transform: scale(1.2);
}

.event-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

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

.event-content {
    padding: 2.5rem;
    position: relative;
    z-index: 2;
}

.event-category {
    display: inline-block;
    background: var(--gradient-cta);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.event-title {
    font-size: 2.2rem;
    color: var(--white);
    margin-bottom: 1rem;
}

.event-date {
    background: var(--gradient-text);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.event-description {
    font-size: 1.5rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.event-footer {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.event-location {
    font-size: 1.3rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Loading Spinner */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 4rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Leadership Section */
.leadership {
    padding: 10rem 0;
    background: var(--background);
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 4rem;
    justify-items: center;
}

.leader-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    max-width: 450px;
    position: relative;
    overflow: hidden;
}

.leader-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 230, 118, 0.08), transparent);
    transition: var(--transition);
}

.leader-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 30px var(--green-glow), 0 0 15px var(--blue-glow);
    border-color: var(--primary-blue);
}

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

.leader-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 2rem;
    border: 4px solid transparent;
    background: var(--gradient-text);
    background-origin: border-box;
    background-clip: padding-box, border-box;
    transition: var(--transition);
}

.leader-card:hover .leader-photo {
    box-shadow: 0 0 30px var(--green-glow), 0 0 15px var(--blue-glow);
}

.leader-name {
    font-size: 2.4rem;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.leader-position {
    font-size: 1.6rem;
    background: var(--gradient-text);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 600;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.leader-bio {
    font-size: 1.5rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.leader-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.leader-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: var(--gradient-cta);
    color: var(--white);
    text-decoration: none;
    border-radius: 25px;
    font-size: 1.3rem;
    transition: var(--transition);
}

.leader-link:hover {
    background: var(--gradient-hover);
    box-shadow: 0 0 20px var(--green-glow);
    transform: translateY(-2px);
}

/* Past Sponsors & Partners Section */
.sponsors {
    padding: 8rem 0;
    background: var(--secondary-bg);
    overflow: hidden;
}

.sponsors-carousel {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.sponsor-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    color: var(--white);
}

.sponsor-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--primary-blue);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 4px 20px rgba(0, 123, 255, 0.3);
}

.sponsor-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.sponsor-nav-prev {
    left: -24px;
}

.sponsor-nav-next {
    right: -24px;
}

.sponsor-nav svg {
    width: 20px;
    height: 20px;
    stroke-width: 2.5;
}

.sponsors-viewport {
    overflow: hidden;
    padding: 2rem 0;
    min-height: 200px;
}

.sponsors-track {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 3rem;
    position: relative;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.sponsor-item {
    flex: 0 0 140px;
    width: 140px;
    min-height: 160px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 1.2rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: opacity 0.5s, transform 0.5s, box-shadow 0.5s, border-color 0.5s;
    opacity: 0.6;
}

.sponsor-item.center {
    opacity: 1;
    transform: scale(1.15);
    box-shadow: 0 10px 40px var(--green-glow);
    border-color: var(--primary-blue);
}

.sponsor-logo {
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.8rem;
    overflow: hidden;
}

.sponsor-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.sponsor-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-light);
    text-align: center;
    line-height: 1.2;
}

.sponsor-item.center .sponsor-name {
    font-size: 1.3rem;
    color: var(--white);
}

/* Contact Section */
.contact {
    padding: 10rem 0;
    background: var(--black);
}

.contact-grid {
    display: flex;
    justify-content: center;
    align-items: stretch;
}

.contact-info {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem 4rem;
    width: 100%;
    max-width: 900px;
}

.contact-info h3 {
    font-size: 2.8rem;
    color: var(--white);
    margin-bottom: 3rem;
    width: 100%;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    margin-bottom: 0;
    flex: 1 1 280px;
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: var(--gradient-cta);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.8rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.contact-item p {
    font-size: 1.5rem;
    color: var(--text-light);
    margin: 0;
    max-width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.contact-item.location-item {
    flex: 1 1 100%;
    min-width: 0;
}

.contact-item.location-item p {
    line-height: 1.5;
    max-width: 400px;
}

.social-links {
    margin-top: 2rem;
    width: 100%;
}

.social-links h4 {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 2rem;
}

.social-icons {
    display: flex;
    gap: 1.5rem;
}

.social-link {
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.social-link:hover {
    background: var(--gradient-cta);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-red);
}

.contact-form h3 {
    font-size: 2.8rem;
    color: var(--white);
    margin-bottom: 3rem;
}

.form-group {
    margin-bottom: 2rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--white);
    font-size: 1.5rem;
    font-family: var(--font-primary);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 20px var(--green-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-dark);
}

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

/* Footer */
.footer {
    background: var(--dark-gray);
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
}

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

.footer-logo {
    font-size: 2rem;
    font-weight: 800;
}

.footer p {
    color: var(--text-dark);
    font-size: 1.4rem;
    margin: 0;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition);
}

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: var(--transition);
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: var(--transition);
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    html {
        font-size: 55%;
    }

    .college-logos {
        gap: 3rem;
        margin-top: 2rem;
        margin-bottom: 3rem;
    }

    .college-logo {
        height: 80px;
        width: 80px;
    }

    .logo-image {
        height: 30px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 3rem;
        transition: var(--transition);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-hamburger {
        display: flex;
    }

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

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

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

    .hero-title {
        font-size: 4rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: 3rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .events-grid {
        grid-template-columns: 1fr;
    }

    .leadership-grid {
        grid-template-columns: 1fr;
    }

    .sponsors-carousel {
        max-width: 100%;
    }

    .sponsor-nav {
        width: 40px;
        height: 40px;
    }

    .sponsor-nav-prev {
        left: 10px;
    }

    .sponsor-nav-next {
        right: 10px;
    }

    .sponsor-nav svg {
        width: 18px;
        height: 18px;
    }

    .sponsor-item {
        flex: 0 0 100px;
        width: 100px;
        min-height: 130px;
    }

    .sponsor-logo {
        aspect-ratio: 1;
    }

    .sponsor-item.center {
        transform: scale(1.1);
    }

    .sponsor-name {
        font-size: 1rem;
    }

    .contact-grid {
        gap: 2rem;
    }

    .contact-info {
        gap: 2rem 3rem;
    }

    .contact-item {
        flex: 1 1 100%;
    }

    .achievements {
        padding: 3rem 0;
    }
    
    .achievements h3 {
        font-size: 2.5rem;
        margin-bottom: 3rem;
    }
    
    .achievement-stats {
        padding: 0 1rem;
        gap: 2.5rem;
    }
    
    .achievement-item {
        padding: 2.5rem 1.5rem;
        border-radius: 15px;
    }
    
    .achievement-icon {
        width: 70px;
        height: 70px;
        font-size: 2rem;
        margin-bottom: 1.5rem;
    }
    
    .achievement-content h4 {
        font-size: 1.8rem;
    }
    
    .achievement-content p {
        font-size: 1.4rem;
    }

    .achievements {
        padding: 3rem 0;
    }
    
    .achievements h3 {
        font-size: 2.5rem;
        margin-bottom: 3rem;
    }
    
    .achievement-stats {
        padding: 0 1rem;
        gap: 2.5rem;
    }
    
    .achievement-item {
        padding: 2.5rem 1.5rem;
        border-radius: 15px;
    }
    
    .achievement-icon {
        width: 70px;
        height: 70px;
        font-size: 2rem;
        margin-bottom: 1.5rem;
    }
    
    .achievement-content h4 {
        font-size: 1.8rem;
    }
    
    .achievement-content p {
        font-size: 1.4rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .achievement-stats {
        grid-template-columns: 1fr;
    }

    .achievement-item {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .nav-container {
        padding: 1rem;
    }

    .about-card,
    .leader-card {
        padding: 2rem;
    }

    .section-header {
        margin-bottom: 4rem;
    }

    .hero {
        padding: 0 1rem;
    }
}

/* Teams Section */
.teams {
    padding: 10rem 0;
    background: var(--black);
}

/* Year Selector in Sidebar */
.year-selector-wrapper {
    margin-bottom: 1.5rem;
    padding: 0;
    background: none;
    border: none;
}

.year-selector {
    width: 100%;
    padding: 1rem 1.2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--primary-green);
    border-radius: 8px;
    color: var(--white);
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    outline: none;
    text-align: left;
}

.year-selector:hover {
    background: var(--bg-darker);
    border-left-color: var(--primary-blue);
    box-shadow: 0 0 8px var(--green-glow);
}

.year-selector:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 12px var(--blue-glow);
}

.year-selector option {
    background: var(--card-bg);
    color: var(--white);
    padding: 0.8rem;
    border: none;
}

.year-selector option:hover {
    background: var(--bg-darker);
    color: var(--primary-green);
}

/* Mobile Navigation Container */
.teams-mobile-container {
    display: none;
}

/* Mobile Year Selector Wrapper - Now inside container but full width */
.mobile-year-selector-wrapper {
    display: none;
    width: calc(100% + 4rem);
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    margin: 2rem -2rem 1rem -2rem;
}

/* Mobile Year Selector - Now outside container */
.mobile-year-selector {
    text-align: center;
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    padding: 0;
}

.mobile-year-selector .year-selector {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--primary-green);
    text-align: center;
    font-size: 1.2rem;
    padding: 0.8rem 1rem;
    max-width: 200px;
    margin: 0 auto;
    width: 100%;
}

.teams-layout {
    display: flex;
    gap: 2.5rem;
    margin-top: 3rem;
}

/* Sidebar Navigation */
.teams-sidebar {
    flex: 0 0 160px;
    position: sticky;
    top: 100px;
    height: fit-content;
}

.teams-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.team-tab {
    padding: 1rem 1.2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: 3px solid transparent;
    color: var(--text-light);
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 500;
    transition: var(--transition);
    border-radius: 8px;
    cursor: pointer;
    text-align: left;
}

.team-tab:hover {
    background: rgba(0, 230, 118, 0.08);
    border-left-color: var(--primary-green);
}

.team-tab.active {
    background: linear-gradient(90deg, rgba(0, 230, 118, 0.15), rgba(0, 174, 239, 0.15));
    border-left-color: var(--bright-green);
    color: var(--white);
    box-shadow: 0 0 15px rgba(0, 230, 118, 0.2);
}

/* Mobile Tabs - Only team tabs scroll, separate from year selector */
.teams-mobile-tabs {
    overflow-x: auto;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    -webkit-overflow-scrolling: touch;
}

.teams-mobile-tabs::-webkit-scrollbar {
    height: 4px;
}

.teams-mobile-tabs::-webkit-scrollbar-track {
    background: var(--card-bg);
    border-radius: 2px;
}

.teams-mobile-tabs::-webkit-scrollbar-thumb {
    background: var(--primary-green);
    border-radius: 2px;
}

.mobile-tabs-container {
    display: flex;
    gap: 1rem;
    min-width: max-content;
}

.mobile-tab {
    padding: 0.9rem 1.8rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 500;
    border-radius: 25px;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition);
}

.mobile-tab:hover {
    background: rgba(0, 230, 118, 0.08);
    border-color: var(--primary-green);
}

.mobile-tab.active {
    background: var(--gradient-cta);
    color: var(--white);
    border-color: var(--primary-green);
    box-shadow: 0 0 15px var(--green-glow);
}

/* Content Area */
.teams-content {
    flex: 1;
    min-width: 0;
}

.teams-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

/* Team Member Card */
.team-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem 1.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.team-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 230, 118, 0.08), rgba(0, 174, 239, 0.08), transparent);
    transition: var(--transition);
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px var(--green-glow), 0 0 15px var(--blue-glow);
    border-color: var(--primary-green);
}

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

/* Team Photo with Loading State */
.team-photo-wrapper {
    position: relative;
    width: 75px;
    height: 75px;
    margin: 0 auto 1rem;
    border-radius: 50%;
}

.team-photo-skeleton {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(
        90deg,
        var(--bg-dark) 0%,
        var(--card-bg) 50%,
        var(--bg-dark) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 0.2s ease-in-out infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.team-photo-wrapper.loaded .team-photo-skeleton {
    display: none;
}

.team-photo {
    width: 75px;
    height: 75px;
    border-radius: 50%;
    object-fit: cover;
    border: 2.5px solid transparent;
    background: linear-gradient(var(--card-bg), var(--card-bg)) padding-box,
                var(--gradient-text) border-box;
    transition: all 0.05s ease;
    opacity: 0;
}

.team-photo-wrapper.loaded .team-photo {
    opacity: 1;
}

.team-card:hover .team-photo {
    box-shadow: 0 0 18px var(--green-glow), 0 0 10px var(--blue-glow);
    transform: scale(1.08);
}

.team-card-divider {
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    margin: 0.8rem 0;
}

/* Fast team card animations */
.team-card.fade-in {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.05s ease, transform 0.05s ease;
}

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

.team-name {
    font-size: 1.6rem;
    color: var(--white);
    margin-bottom: 0.5rem;
    font-weight: 600;
    line-height: 1.3;
}

.team-role {
    font-size: 1.2rem;
    background: var(--gradient-text);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 500;
    margin-bottom: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.team-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 35px;
    height: 35px;
    background: var(--gradient-cta);
    color: var(--white);
    border-radius: 50%;
    text-decoration: none;
    font-size: 1.4rem;
    transition: var(--transition);
    margin-top: auto;
}

.team-link:hover {
    background: var(--gradient-hover);
    transform: scale(1.1);
    box-shadow: 0 0 15px var(--green-glow);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .teams-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.8rem;
    }
}

@media (max-width: 1024px) {
    .teams-sidebar {
        flex: 0 0 140px;
    }
    
    .teams-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
    
    .team-card {
        padding: 1.8rem 1.2rem;
    }
    
    .team-photo-wrapper,
    .team-photo {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 768px) {
    .year-selector-wrapper {
        margin-top: 2.5rem;
        padding: 1.2rem;
        max-width: 280px;
    }
    
    .year-selector {
        width: 100%;
        font-size: 1.3rem;
        padding: 0.8rem 1.2rem;
    }
    
    .teams-sidebar {
        display: none;
    }
    
    .mobile-year-selector-wrapper {
        display: block;
    }
    
    .teams-mobile-container {
        display: block;
    }
    
    .teams-layout {
        flex-direction: column;
        gap: 0;
    }
    
    .teams-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2rem;
    }
    
    .team-card {
        padding: 1.3rem 0.8rem;
        max-width: 100%;
    }
    
    .team-photo-wrapper,
    .team-photo {
        width: 65px;
        height: 65px;
    }
    
    .team-name {
        font-size: 1.25rem;
    }
    
    .team-role {
        font-size: 0.95rem;
        min-height: 2.4rem;
    }
    
    .team-link {
        width: 30px;
        height: 30px;
        font-size: 1.2rem;
    }
    
    .teams-content-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 480px) {
    .teams-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .team-card {
        padding: 1.2rem 0.7rem;
        max-width: 100%;
    }
    
    .team-photo-wrapper,
    .team-photo {
        width: 60px;
        height: 60px;
    }
    
    .team-name {
        font-size: 1.15rem;
    }
    
    .team-role {
        font-size: 0.9rem;
        min-height: 2.2rem;
    }
    
    .mobile-tabs-container {
        gap: 0.8rem;
    }
    
    .mobile-tab {
        padding: 0.8rem 1.5rem;
        font-size: 1.2rem;
    }
    
    /* Mobile year selector adjustments */
    .mobile-year-selector-wrapper {
        width: calc(100% + 2rem);
        margin: 2rem -1rem 1rem -1rem;
        padding: 0.8rem 0;
    }
    
    .mobile-year-selector {
        max-width: 280px;
    }
    
    .mobile-year-selector .year-selector {
        font-size: 1.1rem;
        padding: 0.7rem 0.8rem;
        max-width: 180px;
    }
    
    .teams-content-title {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }
    
    .teams-content-header {
        margin-bottom: 2rem;
    }
}