:root {
    --primary-color: #FF6B35;
    --secondary-color: #004E89;
    --accent-color: #F7B731;
    --dark-color: #1A1A2E;
    --light-color: #F8F9FA;
    --text-color: #2D3436;
    --text-light: #636E72;
    --success-color: #00B894;
    --gradient-1: linear-gradient(135deg, #FF6B35 0%, #F7B731 100%);
    --gradient-2: linear-gradient(135deg, #004E89 0%, #00A8CC 100%);
    --gradient-3: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.header {
    background: var(--gradient-3);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.navbar {
    padding: 16px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: white;
    font-size: 24px;
    font-weight: 700;
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
}

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

.nav-links a:hover {
    color: var(--accent-color);
}

.hero {
    background: var(--gradient-1);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

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

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-content {
    color: white;
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 32px;
    opacity: 0.95;
    line-height: 1.5;
}

.hero-cta {
    display: flex;
    gap: 16px;
}

.btn {
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
}

.btn-large {
    padding: 18px 48px;
    font-size: 18px;
}

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

.football-illustration {
    width: 100%;
    max-width: 400px;
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.football-illustration svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.2));
}

.content-section {
    padding: 80px 0;
    background: white;
}

.main-article {
    max-width: 900px;
    margin: 0 auto;
}

.main-article h2 {
    font-size: 42px;
    color: var(--dark-color);
    margin-bottom: 32px;
    line-height: 1.3;
}

.article-intro {
    margin-bottom: 48px;
}

.lead {
    font-size: 20px;
    line-height: 1.8;
    color: var(--text-color);
    padding: 24px;
    background: linear-gradient(135deg, #FFF5EB 0%, #FFF9F0 100%);
    border-left: 4px solid var(--primary-color);
    border-radius: 8px;
}

.article-content h3 {
    font-size: 28px;
    color: var(--secondary-color);
    margin-top: 40px;
    margin-bottom: 16px;
}

.article-content p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: var(--text-color);
}

.article-content strong {
    color: var(--primary-color);
    font-weight: 600;
}

.conclusion {
    margin-top: 48px;
    padding: 32px;
    background: var(--gradient-2);
    border-radius: 12px;
    color: white;
}

.conclusion p {
    color: white;
    font-size: 18px;
    line-height: 1.8;
    margin: 0;
}

.features-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #F8F9FA 0%, #E8EAF0 100%);
}

.section-title {
    text-align: center;
    font-size: 42px;
    color: var(--dark-color);
    margin-bottom: 64px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-1);
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 40px 32px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    color: var(--primary-color);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-card h3 {
    font-size: 22px;
    color: var(--dark-color);
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

.how-to-section {
    padding: 80px 0;
    background: white;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
    margin-top: 48px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--gradient-1);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.step h3 {
    font-size: 24px;
    color: var(--dark-color);
    margin-bottom: 12px;
}

.step p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 16px;
}

.cta-section {
    padding: 80px 0;
    background: var(--gradient-2);
    text-align: center;
}

.cta-content {
    color: white;
}

.cta-content h2 {
    font-size: 42px;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 20px;
    margin-bottom: 32px;
    opacity: 0.95;
}

.cta-content .btn {
    background: white;
    color: var(--secondary-color);
}

.cta-content .btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.footer {
    background: var(--dark-color);
    color: white;
    padding: 64px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-section h4 {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--accent-color);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

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

.footer-section ul li a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 36px;
    }

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

    .hero-cta {
        justify-content: center;
    }

    .nav-links {
        gap: 16px;
    }

    .nav-links a {
        font-size: 14px;
    }

    .main-article h2 {
        font-size: 32px;
    }

    .article-content h3 {
        font-size: 24px;
    }

    .article-content p {
        font-size: 16px;
    }

    .section-title {
        font-size: 32px;
    }

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

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

    .cta-content h2 {
        font-size: 32px;
    }

    .logo-text {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

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

    .btn {
        width: 100%;
    }

    .nav-links {
        display: none;
    }
}