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

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #e94560;
    --gold-color: #ffd700;
    --silver-color: #c0c0c0;
    --bronze-color: #cd7f32;
    --text-light: #ffffff;
    --text-gray: #b8b8b8;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.4);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--primary-color);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Header */
.header {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

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

.logo-section {
    display: flex;
    flex-direction: column;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.logo-image {
    height: 60px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 10px rgba(255, 255, 255, 0.2));
    transition: transform 0.3s ease;
    margin-right: 1rem;
}

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

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    display: flex;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.2rem;
}

.tagline {
    font-size: 0.9rem;
    color: var(--text-gray);
    font-weight: 300;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.social-links a {
    color: var(--text-light);
    transition: transform 0.3s ease, color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-links a:hover {
    transform: translateY(-3px);
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: center;
}

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

.hero-poster {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
    border: 4px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    object-fit: cover;
}

.hero-poster:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.hero-text {
    text-align: left;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.sponsor-name {
    color: var(--gold-color);
    font-weight: 600;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--text-light);
    box-shadow: var(--shadow);
}

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

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

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

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Competition Overview */
.overview {
    background: var(--secondary-color);
}

.competition-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.competition-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.competition-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    background: rgba(255, 255, 255, 0.08);
}

.card-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.competition-card h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    color: var(--gold-color);
}

.competition-card p {
    color: var(--text-gray);
    margin-bottom: 0.5rem;
}

.card-description {
    font-size: 0.95rem;
    margin-top: 1rem;
}

.card-image {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.platform-icon {
    width: 60px;
    height: 60px;
    object-fit: contain;
    filter: drop-shadow(0 2px 10px rgba(255, 255, 255, 0.2));
    transition: transform 0.3s ease;
    color: var(--accent-color);
}

.platform-icon:hover {
    transform: scale(1.1) rotate(5deg);
    color: var(--gold-color);
}

/* Participate Section */
.participate {
    background: var(--primary-color);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.step {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.03);
    padding: 2.5rem;
    border-radius: 20px;
    border-left: 4px solid var(--accent-color);
}

.step-number {
    background: var(--gradient-1);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: var(--shadow);
}

.step-content {
    flex: 1;
}

.step-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--gold-color);
}

.step-content p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.step-content ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
    color: var(--text-gray);
}

.step-content ul li {
    margin-bottom: 0.5rem;
}

.step-content a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
}

.step-content a:hover {
    text-decoration: underline;
}

.step-note {
    background: rgba(233, 69, 96, 0.1);
    border-left: 3px solid var(--accent-color);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    font-style: italic;
}

.step-note.important {
    background: rgba(255, 215, 0, 0.1);
    border-left-color: var(--gold-color);
}

.hashtags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1rem;
}

.hashtag {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 500;
    border: 1px solid rgba(233, 69, 96, 0.3);
}

/* Timeline */
.timeline-section {
    background: var(--secondary-color);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-1);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 3rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 0.5rem;
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 50%;
    border: 4px solid var(--primary-color);
    box-shadow: 0 0 0 4px var(--accent-color);
}

.timeline-item.highlight::before {
    background: var(--gold-color);
    box-shadow: 0 0 0 4px var(--gold-color), 0 0 20px var(--gold-color);
}

.timeline-date {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gold-color);
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.timeline-content p {
    color: var(--text-gray);
}

/* Prizes Section */
.prizes {
    background: var(--primary-color);
}

.prizes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.prize-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.prize-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.prize-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.prize-card.gold {
    border-color: var(--gold-color);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(255, 215, 0, 0.05) 100%);
}

.prize-card.silver {
    border-color: var(--silver-color);
    background: linear-gradient(135deg, rgba(192, 192, 192, 0.1) 0%, rgba(192, 192, 192, 0.05) 100%);
}

.prize-card.bronze {
    border-color: var(--bronze-color);
    background: linear-gradient(135deg, rgba(205, 127, 50, 0.1) 0%, rgba(205, 127, 50, 0.05) 100%);
}

.prize-rank {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.prize-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.prize-amount {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gold-color);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.prize-desc {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-top: 0.5rem;
}

.weekly-prizes,
.daily-prizes,
.additional-rewards {
    margin-top: 3rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 15px;
}

.subsection-title {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--gold-color);
    text-align: center;
}

.prize-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.prize-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.prize-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(10px);
}

.prize-icon {
    font-size: 1.5rem;
}

.rewards-list {
    list-style: none;
    padding: 0;
}

.rewards-list li {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

/* Links Section */
.links {
    background: var(--secondary-color);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.link-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    text-decoration: none;
    color: var(--text-light);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: block;
}

.link-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-color);
}

.link-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.link-icon-img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    margin-bottom: 1rem;
    filter: drop-shadow(0 2px 10px rgba(255, 255, 255, 0.2));
    transition: transform 0.3s ease, color 0.3s ease;
    color: var(--accent-color);
}

.link-card:hover .link-icon-img {
    transform: scale(1.15) rotate(5deg);
    color: var(--gold-color);
}

.link-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--gold-color);
}

.link-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background: #0a0a1a;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--gold-color);
}

.footer-section p {
    color: var(--text-gray);
}

.sponsor-footer {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gold-color);
}

.footer-social {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-social a {
    color: var(--text-light);
    text-decoration: none;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-gray);
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    border: none;
    border-radius: 50%;
    color: var(--text-light);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    z-index: 999;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.scroll-top.visible {
    display: flex;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        text-align: center;
    }

    .hero-poster {
        max-width: 300px;
    }

    .logo-container {
        flex-direction: column;
        gap: 0.5rem;
    }

    .logo-image {
        height: 50px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .step-number {
        margin: 0 auto;
    }

    .timeline {
        padding-left: 1.5rem;
    }

    .timeline-item {
        padding-left: 2rem;
    }

    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    .btn {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    section {
        padding: 3rem 0;
    }

    .competition-card,
    .prize-card,
    .link-card {
        padding: 1.5rem;
    }
}

/* Print Styles */
@media print {
    .header,
    .scroll-top,
    .hero-buttons {
        display: none;
    }

    body {
        background: white;
        color: black;
    }
}