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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #ffffff;
    overflow-x: hidden;
}

/* ==================== Header ==================== */
.home-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.logo a {
    font-size: 28px;
    font-weight: 700;
    color: #667eea;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.3s ease;
}

.logo-img {
    height: 40px;
    width: auto;
}

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

.main-nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    color: #2c3e50;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #667eea;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

.btn-start-quiz {
    padding: 10px 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-start-quiz:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    color: #2c3e50;
    cursor: pointer;
}

.mobile-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    display: none;
    flex-direction: column;
    padding: 20px;
    z-index: 999;
}

.mobile-nav.active {
    display: flex;
}

.mobile-nav-link {
    padding: 15px;
    color: #2c3e50;
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid #f0f0f0;
}

/* ==================== Success Banner ==================== */
.success-banner {
    position: fixed;
    top: 90px;
    left: 50%;
    transform: translateX(-50%);
    background: #d4edda;
    color: #155724;
    padding: 15px 30px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 999;
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        top: -50px;
        opacity: 0;
    }
    to {
        top: 90px;
        opacity: 1;
    }
}

/* ==================== Hero Section ==================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 5% 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    text-align: center;
    z-index: 2;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 25px;
    color: white;
    font-weight: 600;
    margin-bottom: 30px;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    color: white;
    margin-bottom: 24px;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(90deg, #FFD700 0%, #FFA500 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 60px;
}

.btn-primary-large {
    padding: 16px 40px;
    background: white;
    color: #667eea;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    font-size: 18px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.btn-primary-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-secondary-large {
    padding: 16px 40px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    font-size: 18px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.btn-secondary-large:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
}

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

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: white;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
}

/* Floating Shapes */
.floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: white;
    top: 10%;
    left: 10%;
    animation: float 6s ease-in-out infinite;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: white;
    bottom: 20%;
    right: 15%;
    animation: float 8s ease-in-out infinite;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: white;
    top: 60%;
    left: 70%;
    animation: float 7s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-30px);
    }
}

/* ==================== Features Section ==================== */
.features-section {
    padding: 100px 5%;
    background: #f8f9fa;
}

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

.section-header h2 {
    font-size: 48px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: #7f8c8d;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e0e6ed;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin: 0 auto 24px;
}

.feature-icon.purple {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.feature-icon.blue {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
}

.feature-icon.orange {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    color: white;
}

.feature-icon.green {
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
    color: white;
}

.feature-icon.pink {
    background: linear-gradient(135deg, #e91e63 0%, #c2185b 100%);
    color: white;
}

.feature-icon.teal {
    background: linear-gradient(135deg, #1abc9c 0%, #16a085 100%);
    color: white;
}

.feature-card h3 {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 16px;
}

.feature-card p {
    font-size: 16px;
    color: #7f8c8d;
    line-height: 1.6;
}

/* ==================== Leaderboard Section ==================== */
.leaderboard-section {
    padding: 100px 5%;
    background: white;
}

.leaderboard-container {
    max-width: 800px;
    margin: 0 auto;
}

.leaderboard-table {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.leaderboard-header {
    display: grid;
    grid-template-columns: 100px 1fr 100px;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
}

.leaderboard-body {
    display: flex;
    flex-direction: column;
}

.leaderboard-row {
    display: grid;
    grid-template-columns: 100px 1fr 100px;
    padding: 20px;
    border-bottom: 1px solid #f0f0f0;
    align-items: center;
    transition: background 0.3s ease;
}

.leaderboard-row:hover {
    background: #f8f9fa;
}

.col-rank {
    display: flex;
    justify-content: center;
}

.rank-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: #2c3e50;
}

.rank-badge.top-3 {
    font-size: 20px;
}

.player-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.player-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
}

.col-score {
    text-align: center;
}

.score-value {
    font-size: 24px;
    font-weight: 700;
    color: #667eea;
}

.leaderboard-cta {
    text-align: center;
    margin-top: 30px;
}

.btn-view-all {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-view-all:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

/* ==================== Contact Section ==================== */
.contact-section {
    padding: 100px 5%;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.contact-wrapper {
    max-width: 1400px;
    margin: 0 auto;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    margin-top: 60px;
}

/* Contact Info Card */
.contact-info-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.contact-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.contact-info-card:hover .contact-image img {
    transform: scale(1.1);
}

.contact-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(102, 126, 234, 0.95), transparent);
    padding: 30px;
    color: white;
}

.contact-overlay h3 {
    font-size: 28px;
    margin-bottom: 8px;
}

.contact-overlay p {
    font-size: 16px;
    opacity: 0.9;
}

.contact-details {
    padding: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid #f0f0f0;
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 8px;
    font-weight: 600;
}

.contact-text p {
    font-size: 15px;
    color: #7f8c8d;
    line-height: 1.6;
    margin-bottom: 8px;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
}

.contact-link:hover {
    gap: 10px;
    color: #764ba2;
}

/* Contact Form Card */
.contact-form-card {
    background: white;
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-form-card h3 {
    font-size: 32px;
    color: #2c3e50;
    margin-bottom: 12px;
}

.form-description {
    font-size: 16px;
    color: #7f8c8d;
    margin-bottom: 32px;
}

.contact-form {
    /* Form styling */
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 14px;
}

.form-group label i {
    color: #667eea;
    margin-right: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e0e6ed;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

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

.btn-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(102, 126, 234, 0.4);
}

/* ==================== Footer ==================== */
.home-footer {
    background: #2c3e50;
    color: white;
    padding: 60px 5% 20px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
}

.footer-section h3 {
    display: block;
}

.footer-logo-img {
    height: 40px;
    width: auto;
    display: block;
    margin-bottom: 10px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

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

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

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

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

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #667eea;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom a {
    color: #667eea;
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-title {
        font-size: 42px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }

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

    .contact-container {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .leaderboard-header,
    .leaderboard-row {
        grid-template-columns: 80px 1fr 80px;
        padding: 15px;
    }
}