/* ===== GLOBAL STYLES ===== */
:root {
    --primary-color: #FFFFFF;
    --secondary-color: #AAAAAA;
    --accent-color: #DDDDDD;
    --dark-bg: #000000;
    --darker-bg: #0A0A0A;
    --light-text: #FFFFFF;
    --gray-text: #BBBBBB;
    --card-bg: rgba(20, 20, 20, 0.7);
    --glass-bg: rgba(30, 30, 30, 0.3);
    --glass-border: rgba(255, 255, 255, 0.042);
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    --transition-slow: 0.5s ease;
    --transition-medium: 0.3s ease;
    --transition-fast: 0.2s ease;
    --glow-shadow: 0 0 10px rgba(255, 255, 255, 0.5), 0 0 20px rgba(255, 255, 255, 0.3);
    
    /* Problem Statement Colors */
    --accent-blue: #4C9EFF;
    --accent-purple: #8B5CF6;
    --accent-green: #10B981;
    --problem-bg: rgba(15, 15, 25, 0.8);
    --problem-border: rgba(76, 158, 255, 0.3);
    --tag-bg: rgba(76, 158, 255, 0.15);
    --tag-text: var(--accent-blue);
}

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

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

body {
    font-family: var(--font-secondary);
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    display: flex;
    align-items: center;
}

/* ===== LOADING SCREEN ===== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--dark-bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    overflow: hidden;
}

.loading-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent url('../images/stars.svg') repeat top center;
    animation: move-stars 200s linear infinite;
    opacity: 0.8;
    z-index: -1;
}

.loading-screen::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent url('../images/stars2.svg') repeat top center;
    animation: move-stars 150s linear infinite;
    opacity: 0.6;
    z-index: -1;
}

.loading-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.loading-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
    gap: 30px;
    flex-wrap: wrap;
}

.loading-logo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(45deg, #6e00ff, #8a2be2, #00bfff);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    animation: rotate-glow 3s ease-in-out infinite;
    box-shadow: 0 0 30px rgba(110, 0, 255, 0.5);
    flex-direction: column;
}

.loading-logo::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(45deg, #040404, #1c1c1c, #1c1c1c, #171718);
    border-radius: 50%;
    z-index: -1;
    filter: blur(15px);
    animation: rotate-glow 3s ease-in-out infinite reverse;
}

.nst-logo {
    background: linear-gradient(45deg, #040404, #1c1c1c, #1c1c1c, #171718);
}

.nst-logo::before {
    background: linear-gradient(45deg, #040404, #1c1c1c, #1c1c1c, #171718);
}

.lnmiit-logo {
    background: linear-gradient(45deg, #040404, #1c1c1c, #1c1c1c, #171718);
   

}

.lnmiit-logo::before {
    background: linear-gradient(45deg, #040404, #1c1c1c, #1c1c1c, #171718);
}

.loading-logo img {
    width: 60px;
    height: 60px;
    
    object-fit: cover;
    margin-bottom: 5px;
    
}

.logo-text {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--light-text);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
    opacity: 0.9;
}

.loading-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.connector-symbol {
    font-size: 1.5rem;
    color: var(--light-text);
    font-weight: 300;
    opacity: 0.8;
}


.loading-text {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 30px;
    position: relative;
}

.loading-text-part {
    display: inline-block;
    position: relative;
    margin: 0 10px;
}

.loading-text-part:first-child {
    color: #ffffff;
    text-shadow: 0 0 20px rgba(43, 43, 43, 0.8);
}

.loading-text-part:nth-child(2) {
    color: #ffffff;
    text-shadow: 0 0 20px rgba(36, 36, 36, 0.8);
    font-size: 1.5rem;
    vertical-align: middle;
    opacity: 0.8;
}

.loading-text-part:last-child {
    color: #ffffff;
    text-shadow: 0 0 20px rgba(43, 43, 43, 0.8);
}

.loading-text-char {
    display: inline-block;
    opacity: 0;
    transform: translateY(50px) rotateY(90deg);
}

.loading-subtitle {
    font-family: var(--font-secondary);
    font-size: 1.2rem;
    color: var(--gray-text);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 40px;
    opacity: 0;
}

.loading-progress {
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
    margin: 0 auto 20px auto;
}

.loading-bar {
    height: 100%;
    background: linear-gradient(90deg, #ffffff, #ffffff, #ffffff);
    border-radius: 2px;
    width: 80%;
    position: relative;
    box-shadow: 0 0 10px rgba(110, 0, 255, 0.6);
}

.loading-bar::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4));
    animation: shine 2s infinite;
}

@keyframes shine {
    0% { transform: translateX(-40px); }
    100% { transform: translateX(340px); }
}

.loading-percentage {
    font-family: var(--font-primary);
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 600;
    opacity: 0;
}

.loading-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    animation: float-particle 12s infinite linear;
    opacity: 0.5;
    box-shadow: 0 0 4px rgba(255, 255, 255, 0.3);
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: 1s; }
.particle:nth-child(3) { left: 30%; animation-delay: 2s; }
.particle:nth-child(4) { left: 40%; animation-delay: 3s; }
.particle:nth-child(5) { left: 50%; animation-delay: 4s; }
.particle:nth-child(6) { left: 60%; animation-delay: 1.5s; }
.particle:nth-child(7) { left: 70%; animation-delay: 2.5s; }
.particle:nth-child(8) { left: 80%; animation-delay: 3.5s; }
.particle:nth-child(9) { left: 90%; animation-delay: 0.5s; }

@keyframes float-particle {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.7;
    }
    90% {
        opacity: 0.7;
    }
    100% {
        transform: translateY(-10vh) rotate(360deg);
        opacity: 0;
    }
}

/* Loading screen hide state */
.loading-screen.fade-out {
    animation: fadeOut 1s ease-out forwards;
}

@keyframes fadeOut {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(1.1);
        pointer-events: none;
    }
}

section {
    padding: 100px 0;
    position: relative;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    margin-bottom: 1rem;
    line-height: 1.2;
    font-weight: 700;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1.5rem;
    color: var(--gray-text);
}

a {
    text-decoration: none;
    color: var(--light-text);
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-family: var(--font-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--transition-medium);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.primary-btn {
    background: var(--primary-color);
    color: var(--dark-bg);
    border: none;
    box-shadow: var(--glow-shadow);
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(255, 255, 255, 0.4);
    color: var(--dark-bg);
}

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

.secondary-btn:hover {
    background-color: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-3px);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.underline {
    height: 4px;
    width: 60px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    margin: 0 auto;
    border-radius: 2px;
}

/* ===== STARS BACKGROUND ===== */
.stars-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

#stars, #stars2, #stars3 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

#stars {
    background: transparent url('../images/stars.svg') repeat top center;
    animation: move-stars 200s linear infinite;
}

#stars2 {
    background: transparent url('../images/stars2.svg') repeat top center;
    animation: move-stars 150s linear infinite;
}

#stars3 {
    background: transparent url('../images/stars3.svg') repeat top center;
    animation: move-stars 100s linear infinite;
}

@keyframes move-stars {
    from {
        background-position: 0 0;
    }
    to {
        background-position: 10000px 5000px;
    }
}

/* ===== HEADER & NAVIGATION ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-medium);
}

header.scrolled {
    background-color: rgba(10, 10, 26, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    padding: 15px 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--light-text);
}

.logo img {
    height: 40px;
    width: auto;
    max-width: 100%;
    margin-right: 10px;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links li {
    margin: 0 15px;
}

.nav-links a {
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    transition: width var(--transition-medium);
}

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

.register-btn {
    background: linear-gradient(135deg, #6e00ff 0%, #4a00e0 100%);
    color: white;
    padding: 16px 40px;
    border-radius: 50px;
    margin-left: 25px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    min-width: 180px;
    box-shadow: 0 10px 30px rgba(106, 0, 255, 0.5);
    text-decoration: none;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.register-btn i {
    margin-left: 10px;
    transition: all 0.3s ease;
    font-size: 1.1em;
}

.register-btn:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 20px 40px rgba(106, 0, 255, 0.6);
    background: linear-gradient(135deg, #7a1cff 0%, #5c13d4 100%);
    border-color: rgba(255, 255, 255, 0.2);
}

.register-btn:active {
    transform: translateY(1px) scale(0.98);
    box-shadow: 0 5px 15px rgba(106, 0, 255, 0.4);
}

.register-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: 0.6s;
}

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

/* Add a subtle pulse animation */
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(106, 0, 255, 0.7); }
    70% { box-shadow: 0 0 0 12px rgba(106, 0, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(106, 0, 255, 0); }
}

.register-btn {
    animation: pulse 2s infinite;
}

/* Hover effect for the arrow */
.register-btn:hover i {
    transform: translateX(5px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .register-btn {
        padding: 14px 30px;
        font-size: 0.95rem;
        margin: 15px auto;
        width: 100%;
        max-width: 280px;
        display: flex;
    }
    
    .pdf-download-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
        gap: 0.5rem;
    }
    
    .pdf-download-btn i {
        font-size: 1.1em;
    }
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--light-text);
    margin: 3px 0;
    transition: all var(--transition-medium);
    border-radius: 2px;
}

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

.hero .container {
    display: flex;
    align-items: center;
    position: relative;
}

.hero-content {
    flex: 1;
    width: 50%;
    margin-right: 45%;
    z-index: 2;
    padding-left: 5%;
}

.hero h1 {
    margin-bottom: 20px;
    position: relative;
}

.glitch {
    position: relative;
    color: var(--light-text);
    text-shadow: 0 0 10px rgba(110, 0, 255, 0.3);
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
}

.glitch::before {
    color: #FFFFFF;
    z-index: -1;
    animation: glitch-effect 3s infinite;
}

.glitch::after {
    color: #AAAAAA;
    z-index: -2;
    animation: glitch-effect 2s infinite reverse;
}

@keyframes glitch-effect {
    0% {
        transform: translate(0);
    }
    20% {
        transform: translate(-3px, 3px);
    }
    40% {
        transform: translate(-3px, -3px);
    }
    60% {
        transform: translate(3px, 3px);
    }
    80% {
        transform: translate(3px, -3px);
    }
    100% {
        transform: translate(0);
    }
}

.subtitle {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--light-text);
    font-family: var(--font-primary);
}

.collage-name {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
    font-weight: 700;
    letter-spacing: 1px;
    font-family: var(--font-primary);
    display: inline-block;
    padding: 5px 10px;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    background-color: rgba(255, 255, 255, 0.05);
}

.date {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--gray-text);
}

.countdown {
    display: flex;
    margin-bottom: 40px;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-right: 30px;
}

.countdown-item span:first-child {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-primary);
    color: var(--primary-color);
}

.countdown-item span:last-child {
    font-size: 0.9rem;
    color: var(--gray-text);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    z-index: 1;
    position: absolute;
    right: 0;
    left: 68%;
    top: 50%;
    transform: translateY(-50%);
    width: 45%;
}

.hero-image img {
    max-width: 100%;
    animation: float 6s ease-in-out infinite;
    margin-right: 0;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeInUp 2s ease infinite;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--gray-text);
    border-radius: 20px;
    position: relative;
}

.wheel {
    width: 6px;
    height: 6px;
    background-color: var(--light-text);
    border-radius: 50%;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s ease infinite;
}

.scroll-arrow {
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--gray-text);
    border-bottom: 2px solid var(--gray-text);
    transform: rotate(45deg);
    margin-top: 10px;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translate(-50%, 20px);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

/* ===== ABOUT SECTION ===== */
.about {
    background-color: var(--darker-bg);
    position: relative;
    overflow: hidden;
    padding: 100px 0;

}

.about-content {
    display: flex;
    align-items: center;
    gap: 100px;
    margin-left: 20px;
}

.about-text {
    flex: 1;

}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.about-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.stats {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-primary);
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-text);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== CHALLENGES SECTION ===== */
.challenges {
    position: relative;
    overflow: hidden;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin: 0 20px;
}

.challenge-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 30px;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.challenge-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition-medium);
}

.challenge-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.challenge-card:hover::before {
    opacity: 0.1;
}

.challenge-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.challenge-card h3 {
    margin-bottom: 15px;
    color: var(--light-text);
}

.challenge-card p {
    color: var(--gray-text);
    margin-bottom: 0;
}

/* ===== SCHEDULE SECTION ===== */
.schedule {
    background-color: var(--darker-bg);
    position: relative;
    overflow: hidden;
}

.schedule-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
    gap: 40px;
}

.schedule-title {
    flex: 1;
    text-align: left;
}

.schedule-title h2 {
    text-align: left;
    margin-bottom: 15px;
}

.schedule-title .underline {
    margin: 0;
    margin-left: 0;
}

.pdf-download-section {
    margin-top: 1.5rem;
}

.pdf-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-medium);
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
}

.pdf-download-btn:hover {
    background: linear-gradient(135deg, #b91c1c, #991b1b);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
}

.pdf-download-btn i {
    font-size: 1.2em;
    color: #fef2f2;
}

.pdf-download-btn span {
    color: white;
}

.schedule-rocket {
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.rocket-3d {
    width: 200px;
    height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    filter: drop-shadow(0 10px 40px rgba(255, 255, 255, 0.3)) 
            drop-shadow(0 0 30px rgba(0, 162, 255, 0.2));
    animation: rocketFloat 4s ease-in-out infinite;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    transform-style: preserve-3d;
}

.rocket-image {
    width: 100%;
    height: auto;
    max-height: 350px;
    filter: contrast(1.1) brightness(1.1) saturate(1.2) drop-shadow(0 0 20px rgba(255, 107, 53, 0.3));
    transition: all 0.3s ease;
    cursor: pointer;
    border-radius: 8px;
}

.rocket-3d:hover .rocket-image {
    filter: contrast(1.2) brightness(1.2) saturate(1.3) drop-shadow(0 0 30px rgba(255, 107, 53, 0.6));
    transform: scale(1.05);
}

.rocket-3d:hover {
    transform: translateY(-20px) rotateX(-10deg) scale(1.05);
    filter: drop-shadow(0 15px 50px rgba(255, 255, 255, 0.4)) 
            drop-shadow(0 0 40px rgba(0, 162, 255, 0.3))
            drop-shadow(0 0 20px rgba(255, 107, 53, 0.4));
}



.rocket-exhaust {
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 80px;
    background: linear-gradient(
        0deg,
        rgba(255, 69, 0, 0.95) 0%,
        rgba(255, 140, 0, 0.85) 25%,
        rgba(255, 215, 0, 0.75) 50%,
        rgba(255, 255, 255, 0.6) 75%,
        transparent 100%
    );
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    opacity: 0;
    animation: flameFlicker 0.08s infinite alternate;
    box-shadow: 0 0 30px rgba(255, 140, 0, 0.6),
                0 0 60px rgba(255, 69, 0, 0.4),
                inset 0 0 20px rgba(255, 255, 255, 0.3);
}

.rocket-launching {
    animation: rocketLaunch 5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards !important;
}

.rocket-launching .rocket-exhaust {
    opacity: 1;
    animation: flameFlicker 0.08s infinite alternate, exhaustGrow 5s ease-out forwards;
}

.rocket-launching .rocket-image {
    filter: brightness(1.3) saturate(1.4) contrast(1.2);
}

@keyframes rocketFloat {
    0%, 100% {
        transform: translateY(0px) rotateZ(0deg);
    }
    25% {
        transform: translateY(-8px) rotateZ(1deg);
    }
    50% {
        transform: translateY(-15px) rotateZ(0deg);
    }
    75% {
        transform: translateY(-8px) rotateZ(-1deg);
    }
}

@keyframes rocketLaunch {
    0% {
        transform: translateY(0px) scale(1) rotateZ(0deg);
        opacity: 1;
    }
    20% {
        transform: translateY(-100px) scale(0.95) rotateZ(-5deg);
        opacity: 0.95;
    }
    40% {
        transform: translateY(-300px) scale(0.85) rotateZ(2deg);
        opacity: 0.9;
    }
    70% {
        transform: translateY(-600px) scale(0.6) rotateZ(-1deg);
        opacity: 0.7;
    }
    100% {
        transform: translateY(-1000px) scale(0.2) rotateZ(0deg);
        opacity: 0;
    }
}

@keyframes flameFlicker {
    0% {
        transform: translateX(-50%) scaleY(0.8) scaleX(0.9);
        opacity: 0.8;
    }
    50% {
        transform: translateX(-50%) scaleY(1.1) scaleX(1.2);
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) scaleY(1.3) scaleX(0.8);
        opacity: 0.9;
    }
}

@keyframes exhaustGrow {
    0% {
        height: 80px;
        width: 50px;
        bottom: -30px;
    }
    30% {
        height: 150px;
        width: 70px;
        bottom: -50px;
    }
    60% {
        height: 220px;
        width: 90px;
        bottom: -70px;
    }
    100% {
        height: 300px;
        width: 120px;
        bottom: -90px;
    }
}

.rocket-3d svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 20px rgba(255, 107, 53, 0.3));
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--primary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
}

.timeline-dot {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    box-shadow: var(--glow-shadow);
    z-index: 2;
}

.timeline-date {
    position: absolute;
    top: 0;
    left: 0;
    width: 45%;
    text-align: right;
    padding-right: 35px;
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--primary-color);
}

.timeline-content {
    position: relative;
    left: 55%;
    width: 45%;
    padding: 25px;
    background-color: var(--glass-border);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    min-height: 120px;
}

.timeline-content h3 {
    margin-bottom: 10px;
    color: var(--light-text);
}

.timeline-content p {
    margin-bottom: 10px;
    color: var(--gray-text);
}

.timeline-content p:first-of-type {
    font-weight: 600;
    color: var(--light-text);
}


/* ===== SPONSORS SECTION ===== */
.sponsors {
    position: relative;
    overflow: hidden;
}

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

.sponsors-content > p {
    max-width: 700px;
    margin: 0 auto 50px;
}

.sponsors-grid {
    display: flex;
    flex-direction: column;
    gap: 50px;
    margin-bottom: 60px;
}

.sponsor-tier h3 {
    margin-bottom: 30px;
    color: var(--light-text);
}

.sponsor-logos {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
}

.sponsor-logo {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    border: 1px solid var(--glass-border);
}

.sponsor-logo:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.platinum .sponsor-logo {
    width: 250px;
    height: 150px;
}

.gold .sponsor-logo {
    width: 200px;
    height: 120px;
}

.silver .sponsor-logo {
    width: 150px;
    height: 100px;
}

.become-sponsor {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.become-sponsor h3 {
    margin-bottom: 15px;
    color: var(--light-text);
}

.become-sponsor p {
    margin-bottom: 30px;
    color: var(--gray-text);
}

/* ===== CREW SECTION ===== */
.crew {
    background-color: var(--darker-bg);
    position: relative;
    overflow: hidden;
    padding: 100px 0;
}

.crew-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

.crew-header {
    text-align: center;
    margin-bottom: 80px;
    width: 100%;
}

.crew-header h2 {
    color: var(--light-text);
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.crew-underline {
    height: 4px;
    width: 80px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    margin: 0 auto;
    border-radius: 2px;
}

.crew-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.crew-item {
    display: flex;
    align-items: center;
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    transition: all var(--transition-medium);
    width: 100%;
    min-height: 120px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.crew-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.crew-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
    margin-right: 20px;
    flex-shrink: 0;
}

.crew-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter var(--transition-medium);
}

.crew-item:hover .crew-avatar img {
    filter: grayscale(0%);
}

.crew-info {
    flex: 1;
}

.crew-info h3 {
    color: var(--light-text);
    font-size: 1.2rem;
    margin-bottom: 5px;
    font-weight: 600;
}

.crew-role {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 10px;
    font-weight: 500;
}

.crew-social {
    display: flex;
    gap: 12px;
}

.crew-social .social-link {
    color: var(--light-text);
    font-size: 1rem;
    transition: color var(--transition-medium);
}

.crew-social .social-link:hover {
    color: var(--primary-color);
}

/* ===== FAQ SECTION ===== */
.faq {
    background-color: var(--darker-bg);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.faq .section-header {
    margin-bottom: 80px;
}

.faq .section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--light-text);
    margin-bottom: 20px;
    text-align: center;
}

.faq-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: all var(--transition-medium);
    margin-bottom: 5px;
}

.faq-item:hover {
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.2);
}

.faq-question {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.faq-question:hover {
    background-color: rgba(255, 255, 255, 0.03);
}

.faq-question h3 {
    margin-bottom: 0;
    font-size: 1.2rem;
    color: var(--light-text);
    flex: 1;
    padding-right: 20px;
}

.faq-toggle {
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: all var(--transition-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
}

.faq-toggle.active {
    transform: rotate(45deg);
    background-color: var(--primary-color);
    color: var(--darker-bg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease-out;
    padding: 0 20px;
}

.faq-answer.active {
    max-height: 300px;
    padding: 0 20px 20px;
}

.faq-answer p {
    color: var(--gray-text);
    line-height: 1.6;
    margin: 0;
    padding-top: 10px;
}

/* ===== REGISTER SECTION ===== */
.register {
    position: relative;
    overflow: hidden;
}

.register-content {
    display: flex;
    gap: 50px;
    align-items: center;
}

.register-text {
    flex: 1;
}

.register-benefits {
    margin-top: 30px;
}

.register-benefits li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    color: var(--gray-text);
}

.register-benefits i {
    color: var(--primary-color);
    margin-right: 10px;
}

.register-form {
    flex: 1;
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 40px;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--light-text);
}

input, select, textarea {
    width: 100%;
    padding: 12px 15px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 5px;
    color: var(--light-text);
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.2);
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-group input {
    width: auto;
    margin-right: 10px;
}

.checkbox-group label {
    margin-bottom: 0;
}

button[type="submit"] {
    width: 100%;
    margin-top: 10px;
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

/* ===== PROBLEM STATEMENTS ===== */
#problem-statements {
    padding: 5rem 0;
    background: linear-gradient(
        135deg,
        var(--darker-bg) 0%,
        rgba(10, 10, 30, 0.95) 50%,
        var(--darker-bg) 100%
    );
    position: relative;
    overflow: hidden;
}

#problem-statements::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(76, 158, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.problem-statements-container {
    max-width: min(1200px, 90vw);
    margin: 0 auto;
    padding: 0 clamp(1rem, 5vw, 2rem);
    position: relative;
    z-index: 1;
}

.problem-statements-header {
    text-align: center;
    margin-bottom: clamp(3rem, 8vw, 5rem);
}

.problem-statements-header h2 {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    color: var(--light-text);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.problem-statements-header p {
    font-size: clamp(1rem, 3vw, 1.2rem);
    color: var(--gray-text);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
    gap: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: clamp(3rem, 8vw, 5rem);
}

.problem-card {
    background: var(--problem-bg);
    border: 1px solid var(--problem-border);
    border-radius: 16px;
    padding: clamp(1.5rem, 4vw, 2rem);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple), var(--accent-green));
    border-radius: 16px 16px 0 0;
}

.problem-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-blue);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(76, 158, 255, 0.2);
}

.problem-header {
    margin-bottom: 1.5rem;
}

.problem-title {
    font-size: clamp(1.3rem, 3vw, 1.5rem);
    font-weight: 600;
    color: var(--light-text);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.problem-title i {
    color: var(--accent-blue);
    font-size: 1.2em;
}

.problem-subtitle {
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    color: var(--accent-blue);
    font-weight: 500;
    margin-bottom: 1rem;
}

.problem-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.problem-tag {
    background: var(--tag-bg);
    color: var(--tag-text);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(76, 158, 255, 0.2);
}

.problem-content h4 {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    color: var(--light-text);
    margin: 1.5rem 0 0.75rem 0;
    font-weight: 600;
}

.problem-content p {
    color: var(--gray-text);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
}

.problem-content ul {
    margin: 0.75rem 0;
    padding-left: 1.5rem;
}

.problem-content li {
    color: var(--gray-text);
    margin-bottom: 0.5rem;
    line-height: 1.5;
    font-size: clamp(0.85rem, 2.5vw, 0.95rem);
}

.problem-content li::marker {
    color: var(--accent-blue);
}

/* ===== FOOTER ===== */
footer {
    background: linear-gradient(135deg, var(--darker-bg) 0%, #0d0d0d 100%);
    padding: 80px 0 20px;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.5;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 50px;
    gap: 40px;
}

.footer-logo {
    flex: 1;
    min-width: 250px;
    margin-bottom: 30px;
}

.footer-logo img {
    height: 50px;
    margin-right: 15px;
    border-radius: 8px;
}

.footer-logo span {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--light-text);
    display: block;
}

.footer-tagline {
    color: var(--gray-text);
    font-style: italic;
    margin-top: 10px;
    font-size: 1.1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    flex: 2;
}

.footer-column {
    text-align: left;
}

.footer-column h3 {
    color: var(--light-text);
    margin-bottom: 25px;
    font-size: 1.3rem;
    font-weight: 600;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-color);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: var(--gray-text);
    transition: all var(--transition-fast);
    font-size: 0.95rem;
    position: relative;
    padding-left: 0;
}

.footer-column ul li a:hover {
    color: var(--primary-color);
    padding-left: 10px;
}

.footer-column ul li a::before {
    content: '→';
    position: absolute;
    left: -15px;
    opacity: 0;
    transition: all var(--transition-fast);
}

.footer-column ul li a:hover::before {
    opacity: 1;
    left: -10px;
}

.contact-info li {
    display: flex;
    align-items: center;
    color: var(--gray-text);
    margin-bottom: 15px;
    padding: 8px 0;
}

.contact-info li i {
    margin-right: 12px;
    color: var(--primary-color);
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}

.contact-info li span {
    font-size: 0.95rem;
}

.social-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.social-link {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--light-text);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--darker-bg);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.2);
}

.social-link:hover::before {
    left: 100%;
}

.newsletter {
    margin-top: 30px;
}

.newsletter h4 {
    color: var(--light-text);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.newsletter p {
    color: var(--gray-text);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    gap: 10px;
}

.newsletter-input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--light-text);
    font-size: 0.9rem;
    outline: none;
    transition: all var(--transition-fast);
}

.newsletter-input::placeholder {
    color: var(--gray-text);
}

.newsletter-input:focus {
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.1);
}

.newsletter-btn {
    padding: 12px 15px;
    background: var(--primary-color);
    color: var(--darker-bg);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1rem;
}

.newsletter-btn:hover {
    background: var(--light-text);
    transform: scale(1.05);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    gap: 20px;
}

.footer-bottom-left p {
    color: var(--gray-text);
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.footer-organizers {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.85rem !important;
}

.footer-bottom-links {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.footer-bottom-links a {
    color: var(--gray-text);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
    position: relative;
}

.footer-bottom-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary-color);
    transition: width var(--transition-fast);
}

.footer-bottom-links a:hover {
    color: var(--primary-color);
}

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

/* ===== RESPONSIVE STYLES ===== */

/* Extra large devices (1400px and up) */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
    
    h1 {
        font-size: 4.5rem;
    }
    
    h2 {
        font-size: 3rem;
    }
    
    .hero {
        min-height: 100vh;
        padding-top: 100px;
    }
    
    /* Navigation Enhanced - Large Screens */
    nav {
        max-width: 1400px;
        width: 95%;
    }
    
    .logo {
        font-size: 1.8rem;
    }
    
    .logo img {
        height: 50px;
        margin-right: 15px;
    }
    
    .nav-links a {
        font-size: 1rem;
        padding: 8px 0;
    }
    
    .nav-links li {
        margin: 0 20px;
    }
    
    .register-btn {
        padding: 12px 25px;
        font-size: 1rem;
        margin-left: 25px;
    }
    
    /* Hero Enhanced - Large Screens */
    .hero-content {
        max-width: 55%;
        padding-left: 2%;
    }
    
    .hero h1 {
        margin-bottom: 30px;
        line-height: 1.1;
    }
    
    .subtitle {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }
    
    .collage-name {
        font-size: 1.4rem;
        padding: 8px 15px;
        margin-bottom: 15px;
    }
    
    .date {
        font-size: 1.4rem;
        margin-bottom: 40px;
    }
    
    .countdown-item {
        margin-right: 40px;
    }
    
    .countdown-item span:first-child {
        font-size: 3rem;
    }
    
    .countdown-item span:last-child {
        font-size: 1rem;
    }
    
    .hero-buttons {
        gap: 25px;
        margin-top: 40px;
    }
    
    .hero-image {
        width: 50%;
        left: 65%;
    }
    
    .challenges-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 40px;
    }
    
    .crew-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 40px;
        max-width: 1300px;
    }
    
    .crew-item {
        padding: 30px;
        min-height: 140px;
    }
    
    .crew-avatar {
        width: 90px;
        height: 90px;
        margin-right: 25px;
    }
    
    .crew-info h3 {
        font-size: 1.3rem;
    }
    
    .crew-role {
        font-size: 1rem;
    }
    
    .crew-header h2 {
        font-size: 3.2rem;
    }
    
    .timeline {
        max-width: 1000px;
    }
    
    .faq-grid {
        max-width: 900px;
    }
    
    section {
        padding: 120px 0;
    }
}

@media (max-width: 1200px) {
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
    
    .container {
        width: 95%;
        padding: 0 15px;
    }
    
    /* Navigation Enhanced - Desktop */
    nav {
        width: 95%;
        max-width: 1200px;
    }
    
    .logo {
        font-size: 1.6rem;
    }
    
    .logo img {
        height: 45px;
        margin-right: 12px;
    }
    
    .nav-links li {
        margin: 0 18px;
    }
    
    .nav-links a {
        font-size: 0.95rem;
    }
    
    .register-btn {
        padding: 10px 22px;
        margin-left: 20px;
        font-size: 0.95rem;
    }
    
    /* Hero Enhanced - Desktop */
    .hero {
        padding-top: 90px;
    }
    
    .hero-content {
        max-width: 50%;
        padding-left: 3%;
    }
    
    .hero h1 {
        margin-bottom: 25px;
    }
    
    .subtitle {
        font-size: 1.6rem;
        margin-bottom: 12px;
    }
    
    .collage-name {
        font-size: 1.35rem;
        padding: 7px 12px;
    }
    
    .date {
        font-size: 1.3rem;
        margin-bottom: 35px;
    }
    
    .countdown-item {
        margin-right: 35px;
    }
    
    .countdown-item span:first-child {
        font-size: 2.8rem;
    }
    
    .countdown-item span:last-child {
        font-size: 0.95rem;
    }
    
    .hero-buttons {
        gap: 22px;
    }
    
    .hero-image {
        width: 48%;
        left: 67%;
    }
    
    .challenges-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .timeline-content {
        padding: 20px;
    }
    
    .crew-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
    }
    
    .crew-item {
        padding: 20px;
        min-height: 110px;
    }
    
    .crew-avatar {
        width: 75px;
        height: 75px;
        margin-right: 18px;
    }
    
    .crew-info h3 {
        font-size: 1.1rem;
    }
    
    .crew-role {
        font-size: 0.85rem;
    }
    
    .crew-header {
        margin-bottom: 60px;
    }
    
    .crew-header h2 {
        font-size: 2.5rem;
    }
    
    .footer-links {
        gap: 30px;
    }
}

@media (max-width: 992px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .container {
        flex-direction: column;
        width: 100%;
        padding: 0 20px;
    }
    
    /* Navigation - Tablet */
    nav {
        width: 100%;
        padding: 0 20px;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .logo img {
        height: 42px;
        margin-right: 10px;
    }
    
    .nav-links {
        position: fixed;
        top: 75px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 75px);
        background: linear-gradient(135deg, var(--darker-bg) 0%, rgba(20, 20, 45, 0.98) 100%);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 60px;
        transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 25px 0;
        opacity: 0;
        transform: translateY(20px);
        animation: slideInNav 0.3s ease forwards;
    }
    
    .nav-links.active li {
        animation-delay: calc(0.1s * var(--i, 0));
    }
    
    .nav-links a {
        font-size: 1.3rem;
        padding: 15px 25px;
        border-radius: 8px;
        transition: all 0.3s ease;
    }
    
    .nav-links a:hover {
        background: rgba(110, 0, 255, 0.1);
        transform: translateX(10px);
    }
    
    .register-btn {
        margin: 20px 0 0 0;
        padding: 12px 30px;
        font-size: 1.1rem;
    }
    
    .nav-toggle {
        display: flex;
        flex-direction: column;
        cursor: pointer;
        padding: 5px;
    }
    
    .nav-toggle span {
        width: 25px;
        height: 3px;
        background: var(--light-text);
        margin: 3px 0;
        transition: all 0.3s ease;
        transform-origin: center;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    /* Hero - Tablet */
    .hero {
        padding-top: 85px;
        min-height: 90vh;
    }
    
    .hero-content {
        flex: none;
        width: 100%;
        text-align: center;
        margin-right: 0;
        padding: 0 20px;
        max-width: 100%;
    }
    
    .hero h1 {
        margin-bottom: 20px;
        line-height: 1.2;
    }
    
    .subtitle {
        font-size: 1.4rem;
        margin-bottom: 10px;
    }
    
    .collage-name {
        font-size: 1.2rem;
        padding: 6px 10px;
        margin-bottom: 10px;
    }
    
    .date {
        font-size: 1.1rem;
        margin-bottom: 30px;
    }
    
    .countdown {
        justify-content: center;
        margin-bottom: 35px;
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .countdown-item {
        margin: 0;
        min-width: 80px;
    }
    
    .countdown-item span:first-child {
        font-size: 2.2rem;
    }
    
    .countdown-item span:last-child {
        font-size: 0.85rem;
    }
    
    .hero-buttons {
        justify-content: center;
        gap: 18px;
        flex-wrap: wrap;
    }
    
    .hero-image {
        position: relative;
        width: 70%;
        max-width: 400px;
        margin: 40px auto 0;
        justify-content: center;
        transform: none;
        top: auto;
        right: auto;
        left: auto;
    }
    
    @keyframes slideInNav {
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .about-text, .about-image {
        flex: none;
        width: 100%;
    }
    
    .about-image {
        margin-top: 50px;
        order: -1;
    }
    
    .schedule-header {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
    
    .schedule-title {
        text-align: center;
    }
    
    .schedule-title h2 {
        text-align: center;
    }
    
    .schedule-title .underline {
        margin: 0 auto;
    }
    
    .rocket-3d {
        width: 90px;
        height: 220px;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-dot {
        left: 30px;
    }
    
    .timeline-date {
        position: relative;
        width: 100%;
        text-align: left;
        padding-left: 60px;
        padding-right: 0;
        left: 0;
    }
    
    .timeline-content {
        width: calc(100% - 60px);
        left: 60px;
    }
    
    .register-content {
        flex-direction: column;
    }
    
    .register-text, .register-form {
        flex: none;
        width: 100%;
    }
    
    .register-form {
        margin-top: 50px;
    }
    
    /* Navigation responsive */
    .nav-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--darker-bg);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 50px;
        transition: left 0.3s ease;
        z-index: 999;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 20px 0;
    }
    
    .nav-links a {
        font-size: 1.2rem;
        padding: 10px 20px;
    }
    
    /* Challenges responsive */
    .challenges-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* Stats responsive */
    .stats {
        flex-direction: column;
        gap: 20px;
    }
    
    /* Crew responsive */
    .crew {
        padding: 80px 0;
    }
    
    .crew-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .crew-item {
        padding: 20px;
        min-height: 100px;
    }
    
    .crew-avatar {
        width: 70px;
        height: 70px;
        margin-right: 15px;
    }
    
    .crew-info h3 {
        font-size: 1.1rem;
    }
    
    .crew-role {
        font-size: 0.85rem;
    }
    
    .crew-header {
        margin-bottom: 50px;
    }
    
    .crew-header h2 {
        font-size: 2.2rem;
    }
    
    .crew-social .social-link {
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    section {
        padding: 70px 0;
    }
    
    /* Loading Screen - Mobile */
    .loading-logos {
        gap: 20px;
        margin-bottom: 30px;
    }
    
    .loading-logo {
        width: 80px;
        height: 80px;
    }
    
    .loading-logo img {
        width: 50px;
        height: 50px;
        margin-bottom: 3px;
    }
    
    .logo-text {
        font-size: 0.6rem;
    }
    
    .loading-connector {
        width: 30px;
        height: 30px;
    }
    
    .connector-symbol {
        font-size: 1.2rem;
    }
    
    .loading-text {
        font-size: 1.8rem;
        letter-spacing: 2px;
        margin-bottom: 25px;
    }
    
    .loading-text-part:nth-child(2) {
        font-size: 1.2rem;
    }
    
    .loading-subtitle {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    .loading-progress {
        width: 250px;
        margin: 0 auto 15px auto;
    }
    
    /* Navigation - Mobile */
    header {
        padding: 15px 0;
    }
    
    header.scrolled {
        padding: 12px 0;
    }
    
    nav {
        padding: 0 15px;
    }
    
    .logo {
        font-size: 1.4rem;
    }
    
    .logo img {
        height: 38px;
        margin-right: 8px;
    }
    
    .nav-toggle {
        display: flex;
        flex-direction: column;
        cursor: pointer;
        padding: 8px;
        border-radius: 4px;
        transition: background-color 0.3s ease;
    }
    
    .nav-toggle:hover {
        background-color: rgba(110, 0, 255, 0.1);
    }
    
    .nav-toggle span {
        width: 22px;
        height: 2.5px;
        background: var(--light-text);
        margin: 2.5px 0;
        transition: all 0.3s ease;
        border-radius: 2px;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: 0;
        background: linear-gradient(135deg, var(--darker-bg) 0%, rgba(15, 15, 35, 0.98) 100%);
        backdrop-filter: blur(15px);
        border-top: 1px solid rgba(110, 0, 255, 0.2);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: 0;
        overflow: hidden;
        transition: height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
    }
    
    .nav-links.active {
        height: calc(100vh - 70px);
        padding: 40px 0 30px;
        overflow-y: auto;
    }
    
    .nav-links li {
        margin: 18px 0;
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.3s ease;
    }
    
    .nav-links.active li {
        opacity: 1;
        transform: translateY(0);
        animation: fadeInUp 0.4s ease forwards;
    }
    
    .nav-links.active li:nth-child(1) { animation-delay: 0.1s; }
    .nav-links.active li:nth-child(2) { animation-delay: 0.2s; }
    .nav-links.active li:nth-child(3) { animation-delay: 0.3s; }
    .nav-links.active li:nth-child(4) { animation-delay: 0.4s; }
    .nav-links.active li:nth-child(5) { animation-delay: 0.5s; }
    
    .nav-links a {
        font-size: 1.2rem;
        padding: 12px 20px;
        border-radius: 8px;
        transition: all 0.3s ease;
        display: block;
        text-align: center;
        min-width: 120px;
    }
    
    .nav-links a:hover {
        background: rgba(110, 0, 255, 0.15);
        transform: scale(1.05);
    }
    
    .register-btn {
        margin: 15px 0 0 0;
        padding: 12px 25px;
        font-size: 1rem;
    }
    
    /* Hero - Mobile */
    .hero {
        padding-top: 75px;
        min-height: 85vh;
        text-align: center;
    }
    
    .hero .container {
        padding: 0 15px;
    }
    
    .hero-content {
        width: 100%;
        max-width: 100%;
        padding: 0;
        margin: 0;
    }
    
    .hero h1 {
        font-size: 2rem;
        margin-bottom: 18px;
        line-height: 1.1;
    }
    
    .subtitle {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
    
    .collage-name {
        font-size: 1.1rem;
        padding: 5px 8px;
        margin-bottom: 8px;
    }
    
    .date {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    
    .countdown {
        justify-content: center;
        margin-bottom: 30px;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .countdown-item {
        margin: 5px;
        min-width: 70px;
    }
    
    .countdown-item span:first-child {
        font-size: 2rem;
    }
    
    .countdown-item span:last-child {
        font-size: 0.8rem;
    }
    
    .hero-buttons {
        justify-content: center;
        gap: 15px;
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 200px;
        padding: 12px 20px;
        font-size: 0.95rem;
    }
    
    .hero-image {
        width: 85%;
        max-width: 350px;
        margin: 35px auto 0;
    }
    
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .register-btn {
        margin-left: 0;
        margin-top: 15px;
    }
    
    .challenges-grid {
        grid-template-columns: 1fr;
    }
    
    .crew-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .crew-header h2 {
        font-size: 2.5rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-logo {
        text-align: center;
        min-width: auto;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .footer-bottom-links {
        justify-content: center;
    }
    
    .newsletter-form {
        flex-direction: column;
        gap: 15px;
        max-width: 250px;
    }
    
    .faq {
        padding: 80px 0;
    }
    
    .faq .section-header h2 {
        font-size: 2.5rem;
    }
    
    .faq .section-header {
        margin-bottom: 60px;
    }
    
    .faq-question {
        padding: 15px;
    }
    
    .faq-question h3 {
        font-size: 1.1rem;
        padding-right: 15px;
    }
    
    .faq-toggle {
        width: 28px;
        height: 28px;
        font-size: 1.1rem;
    }
    
    .faq-answer.active {
        padding: 0 15px 15px;
    }
    
    .schedule-header {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .rocket-3d {
        width: 140px;
        height: 280px;
    }
    
    .rocket-image {
        max-height: 250px;
    }
    
    .rocket-exhaust {
        bottom: -20px;
        width: 35px;
        height: 55px;
    }
    
    /* Additional responsive styles for 768px */
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    
    .btn {
        width: 200px;
        text-align: center;
    }
    
    .stats {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .timeline {
        max-width: 90%;
    }
    
    .timeline-item {
        margin-bottom: 40px;
    }
    
    .challenge-card {
        text-align: center;
        padding: 25px 20px;
    }
    
    .challenge-icon {
        margin-bottom: 20px;
    }
    
    /* Crew Section Responsive - Tablet */
    .crew-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .crew-item {
        padding: 30px 20px;
        text-align: center;
        min-height: 350px;
    }
    
    .crew-item img {
        width: 120px;
        height: 120px;
        margin: 0 auto 20px;
    }
    
    .crew-item h3 {
        font-size: 1.5rem;
        margin-bottom: 8px;
    }
    
    .crew-item .role {
        font-size: 1rem;
        margin-bottom: 15px;
    }
    
    .crew-item p {
        font-size: 0.95rem;
        line-height: 1.6;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .collage-name {
        font-size: 1rem;
        padding: 4px 8px;
    }
    
    /* Loading Screen - Small Mobile */
    .loading-logos {
        gap: 15px;
        margin-bottom: 25px;
        flex-direction: column;
    }
    
    .loading-logo {
        width: 70px;
        height: 70px;
    }
    
    .loading-logo img {
        width: 45px;
        height: 45px;
        margin-bottom: 2px;
    }
    
    .logo-text {
        font-size: 0.55rem;
    }
    
    .loading-connector {
        width: 25px;
        height: 25px;
        transform: rotate(90deg);
    }
    
    .connector-symbol {
        font-size: 1rem;
    }
    
    .loading-text {
        font-size: 1.5rem;
        letter-spacing: 1px;
        margin-bottom: 20px;
    }
    
    .loading-text-part:nth-child(2) {
        font-size: 1rem;
    }
    
    .loading-subtitle {
        font-size: 0.9rem;
        margin-bottom: 25px;
    }
    
    .loading-progress {
        width: 200px;
        margin: 0 auto 12px auto;
    }
    
    /* Navigation - Small Mobile */
    header {
        padding: 12px 0;
    }
    
    nav {
        padding: 0 12px;
    }
    
    .logo {
        font-size: 1.3rem;
    }
    
    .logo img {
        height: 35px;
        margin-right: 6px;
    }
    
    .nav-toggle span {
        width: 20px;
        height: 2px;
    }
    
    .nav-links {
        top: 65px;
    }
    
    .nav-links.active {
        height: calc(100vh - 65px);
        padding: 35px 0 25px;
    }
    
    .nav-links a {
        font-size: 1.1rem;
        padding: 10px 18px;
        min-width: 100px;
    }
    
    .register-btn {
        padding: 10px 20px;
        font-size: 0.95rem;
    }
    
    /* Hero - Small Mobile */
    .hero {
        padding-top: 430px;
        min-height: 80vh;
    }
    
    .hero .container {
        padding: 0 12px;
    }
    
    .hero h1 {
        font-size: 1.8rem;
        margin-bottom: 15px;
        line-height: 1.1;
    }
    
    .subtitle {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }
    
    .collage-name {
        font-size: 0.95rem;
        padding: 4px 6px;
        margin-bottom: 8px;
    }
    
    .date {
        font-size: 0.95rem;
        margin-bottom: 20px;
    }
    
    .countdown {
        flex-wrap: wrap;
        justify-content: center;
        margin-bottom: 25px;
        gap: 8px;
    }
    
    .countdown-item {
        margin: 8px;
        min-width: 65px;
    }
    
    .countdown-item span:first-child {
        font-size: 1.8rem;
    }
    
    .countdown-item span:last-child {
        font-size: 0.75rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }
    
    .btn {
        width: 180px;
        padding: 11px 18px;
        font-size: 0.9rem;
    }
    
    .hero-image {
        width: 100%;
        max-width: 320px;
        margin-left: 30px auto 0;
        padding-bottom: 30px;
    }
    
    .stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .sponsor-logos {
        flex-direction: column;
        align-items: center;
    }
    
    .crew-list {
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 0 10px;
    }
    
    .crew-item {
        flex-direction: column;
        text-align: center;
        padding: 25px 20px;
        min-height: 300px;
        margin: 0 auto;
        max-width: 350px;
    }
    
    .crew-item img {
        width: 100px;
        height: 100px;
        margin: 0 auto 15px;
        border-radius: 50%;
    }
    
    .crew-item h3 {
        font-size: 1.4rem;
        margin-bottom: 8px;
    }
    
    .crew-item .role {
        font-size: 0.95rem;
        margin-bottom: 15px;
        color: var(--primary-color);
    }
    
    .crew-item p {
        font-size: 0.9rem;
        line-height: 1.6;
    }
    
    .crew-avatar {
        width: 100px;
        height: 100px;
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .crew-header h2 {
        font-size: 2rem;
    }
    
    .schedule-header {
        gap: 15px;
    }
    
    .rocket-3d {
        width: 100px;
        height: 200px;
    }
    
    .rocket-image {
        max-height: 180px;
    }
    
    .rocket-exhaust {
        bottom: -15px;
        width: 25px;
        height: 35px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .footer-column {
        text-align: center;
    }
    
    .footer-column h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-logo span {
        font-size: 1.5rem;
    }
    
    .footer-tagline {
        font-size: 1rem;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .contact-info li {
        justify-content: center;
        text-align: center;
    }
    
    .newsletter-form {
        max-width: 280px;
        margin: 0 auto;
    }
    
    .faq {
        padding: 60px 0;
    }
    
    .faq .section-header h2 {
        font-size: 2rem;
    }
    
    .faq .section-header {
        margin-bottom: 50px;
    }
    
    .faq-question {
        padding: 15px;
    }
    
    .faq-question h3 {
        font-size: 1rem;
        line-height: 1.4;
        padding-right: 10px;
    }
    
    .faq-toggle {
        width: 26px;
        height: 26px;
        font-size: 1rem;
    }
    
    .faq-answer {
        padding: 0 15px 15px;
    }
    
    .faq-answer.active {
        padding: 0 15px 15px;
    }
    
    .faq-grid {
        gap: 15px;
    }
    
    /* Additional comprehensive mobile styles */
    section {
        padding: 60px 0;
    }
    
    .container {
        width: 100%;
        padding: 0 20px;
    }
    
    /* Navigation mobile */
    .nav-links a {
        font-size: 1.1rem;
        padding: 12px 0;
        display: block;
        width: 100%;
        text-align: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-links li:last-child a {
        border-bottom: none;
    }
    
    .register-btn {
        background: var(--primary-color);
        color: var(--darker-bg);
        border-radius: 25px;
        margin-top: 20px;
    }
    
    /* Hero mobile */
    .hero {
        min-height: 90vh;
        text-align: center;
    }
    
    .countdown-item span:first-child {
        font-size: 1.5rem;
    }
    
    .countdown-item span:last-child {
        font-size: 0.8rem;
    }
    
    .scroll-indicator {
        bottom: 20px;
    }
    
    /* About mobile */
    .about-text p {
        font-size: 0.95rem;
        line-height: 1.7;
    }
    
    .stat-item {
        padding: 15px;
        min-width: 120px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    /* Timeline mobile */
    .timeline::before {
        left: 20px;
    }
    
    .timeline-dot {
        left: 20px;
        width: 12px;
        height: 12px;
    }
    
    .timeline-date {
        padding-left: 45px;
        font-size: 0.85rem;
    }
    
    .timeline-content {
        left: 45px;
        width: calc(100% - 45px);
        padding: 15px;
    }
    
    .timeline-content h3 {
        font-size: 1.1rem;
    }
    
    .timeline-content p {
        font-size: 0.9rem;
    }
    
    /* Challenge cards mobile */
    .challenges-grid {
        gap: 15px;
    }
    
    .challenge-card h3 {
        font-size: 1.1rem;
    }
    
    .challenge-card p {
        font-size: 0.9rem;
        line-height: 1.6;
    }
    
    .challenge-icon {
        font-size: 2rem;
    }
    
    /* Form mobile */
    .btn {
        width: 100%;
        padding: 12px 20px;
        font-size: 0.95rem;
    }
    
    input, textarea {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}

/* Extra small devices (320px and down) */
@media (max-width: 320px) {
    .container {
        padding: 0 10px;
    }
    
    h1 {
        font-size: 1.6rem;
        line-height: 1.2;
    }
    
    h2 {
        font-size: 1.4rem;
    }
    
    /* Loading Screen - Extra Small Mobile */
    .loading-logos {
        gap: 10px;
        margin-bottom: 20px;
        flex-direction: column;
    }
    
    .loading-logo {
        width: 60px;
        height: 60px;
    }
    
    .loading-logo img {
        width: 40px;
        height: 40px;
        margin-bottom: 2px;
    }
    
    .logo-text {
        font-size: 0.5rem;
    }
    
    .loading-connector {
        width: 20px;
        height: 20px;
        transform: rotate(90deg);
    }
    
    .connector-symbol {
        font-size: 0.8rem;
    }
    
    .loading-text {
        font-size: 1.2rem;
        letter-spacing: 0.5px;
        margin-bottom: 15px;
    }
    
    .loading-text-part:nth-child(2) {
        font-size: 0.8rem;
    }
    
    .loading-subtitle {
        font-size: 0.8rem;
        margin-bottom: 20px;
    }
    
    .loading-progress {
        width: 180px;
        margin: 0 auto 10px auto;
    }
    
    /* Navigation - Extra Small Mobile */
    header {
        padding: 10px 0;
    }
    
    nav {
        padding: 0 10px;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .logo img {
        height: 32px;
        margin-right: 5px;
    }
    
    .nav-toggle {
        padding: 6px;
    }
    
    .nav-toggle span {
        width: 18px;
        height: 2px;
        margin: 2px 0;
    }
    
    .nav-links {
        top: 60px;
    }
    
    .nav-links.active {
        height: calc(100vh - 60px);
        padding: 30px 0 20px;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .nav-links a {
        font-size: 1rem;
        padding: 8px 15px;
        min-width: 90px;
    }
    
    .register-btn {
        padding: 8px 18px;
        font-size: 0.85rem;
        margin-top: 10px;
    }
    
    /* Hero - Extra Small Mobile */
    .hero {
        padding-top: 265px;
        min-height: 75vh;
    }
    
    .hero .container {
        padding: 0 10px;
    }
    
    .hero h1 {
        font-size: 1.5rem;
        margin-bottom: 12px;
        line-height: 1.1;
    }
    
    .subtitle {
        font-size: 1rem;
        margin-bottom: 6px;
    }
    
    .collage-name {
        font-size: 0.85rem;
        padding: 3px 5px;
        margin-bottom: 6px;
    }
    
    .date {
        font-size: 0.85rem;
        margin-bottom: 18px;
    }
    
    .countdown {
        margin-bottom: 20px;
        gap: 5px;
    }
    
    .countdown-item {
        margin: 5px;
        min-width: 60px;
    }
    
    .countdown-item span:first-child {
        font-size: 1.4rem;
    }
    
    .countdown-item span:last-child {
        font-size: 0.7rem;
    }
    
    .hero-buttons {
        gap: 10px;
    }
    
    .btn {
        width: 160px;
        padding: 10px 15px;
        font-size: 0.85rem;
    }
    
    .hero-image {
        max-width: 280px;
        margin: 25px auto 0;
    }
    
    .faq-question {
        padding: 12px;
    }
    
    .faq-question h3 {
        font-size: 0.95rem;
    }
    
    .challenge-card {
        padding: 20px 15px;
    }
    
    .timeline-content {
        padding: 12px;
    }
    
    .crew-avatar {
        width: 80px;
        height: 80px;
    }
    
    /* Crew Section - Extra Small Mobile */
    .crew-list {
        gap: 20px;
        padding: 0 5px;
    }
    
    .crew-item {
        padding: 20px 15px;
        min-height: 280px;
        max-width: 300px;
    }
    
    .crew-item img {
        width: 80px;
        height: 80px;
        margin: 0 auto 12px;
    }
    
    .crew-item h3 {
        font-size: 1.2rem;
        margin-bottom: 6px;
    }
    
    .crew-item .role {
        font-size: 0.85rem;
        margin-bottom: 12px;
    }
    
    .crew-item p {
        font-size: 0.8rem;
        line-height: 1.5;
    }
}

/* Landscape orientation for mobile devices */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: 100vh;
        padding: 40px 0;
    }
    
    .nav-links.active {
        height: 100vh;
        padding: 20px 0;
    }
    
    .countdown {
        flex-wrap: nowrap;
        justify-content: space-around;
        margin: 20px 0;
    }
    
    .countdown-item {
        margin: 0 5px;
    }
    
    .hero-buttons {
        flex-direction: row;
        gap: 20px;
        justify-content: center;
        margin-top: 20px;
    }
    
    .btn {
        width: auto;
        min-width: 150px;
    }
    
    section {
        padding: 50px 0;
    }
    
    .faq {
        padding: 40px 0;
    }
}

/* High-resolution displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo img,
    .footer-logo img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: optimize-contrast;
    }
    
    .rocket-image {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: optimize-contrast;
    }
}

/* Print styles */
@media print {
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    .nav-toggle,
    .scroll-indicator,
    .loader,
    .stars-container {
        display: none !important;
    }
    
    a, a:visited {
        text-decoration: underline;
    }
    
    h1, h2, h3 {
        page-break-after: avoid;
    }
    
    section {
        page-break-inside: avoid;
        padding: 20px 0 !important;
    }
}

/* ===== PROBLEM STATEMENTS RESPONSIVE ===== */
@media (max-width: 1024px) {
    .problems-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .problem-card {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    #problem-statements {
        padding: 3rem 0;
    }
    
    .problems-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .problem-card {
        padding: 1.25rem;
    }
    
    .problem-title {
        font-size: 1.2rem;
    }
    
    .problem-tags {
        gap: 0.4rem;
    }
    
    .problem-tag {
        padding: 0.25rem 0.6rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 600px) {
    .problem-statements-container {
        padding: 0 1rem;
    }
    
    .problem-card {
        padding: 1rem;
    }
    
    .problem-content ul {
        padding-left: 1rem;
    }
    
    .problem-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .problem-title i {
        align-self: flex-start;
    }
}

@media (max-width: 480px) {
    .problem-card:hover {
        transform: translateY(-4px);
    }
    
    .problem-tags {
        justify-content: center;
    }
}