@import url('https://fonts.googleapis.com/css2?family=Lato:wght@400;700&display=swap');

:root {
    --primary-color: #03045E;
    --secondary-color: #CAF0F8;
    --accent-color: #00B4D8;
    --mid-primary: #0077B6;
    --soft-accent: #90E0EF;
    --white: #ffffff;
    --black: #000000;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 10rem;
    font-size: 10px;
}

body {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--soft-accent) 100%);
    color: var(--primary-color);
    font-family: 'Lato', sans-serif;
    font-size: 1.6rem;
    min-height: 100vh;
}

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

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

.text-paragraph {
    font-size: 1.5rem;
}

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

.font-bold {
    font-weight: 700;
}

.navbar {
    padding: 1rem;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: linear-gradient(90deg, var(--primary-color), var(--mid-primary));
    box-shadow: 0 0.2rem 0.4rem 0 rgba(0,0,0,.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--primary-color);
    padding: 0;
    z-index: 1000;
    box-shadow: 0 0.4rem 0.6rem rgba(0, 0, 0, 0.1);
}

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

.nav-links li {
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-links li:last-child {
    border-bottom: none;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: 700;
    padding: 1.5rem;
    display: block;
    width: 100%;
    text-align: center;
    transition: background-color 0.3s ease;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.hamburger {
    display: block;
    padding: 0.8rem;
    background-color: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.8rem;
    color: var(--white);
    transition: all 0.3s ease;
}

.hamburger:hover {
    color: var(--secondary-color);
}

.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--mid-primary));
    color: var(--white);
    margin-top: 8rem;
    margin-bottom: 6rem;
    width: 98%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 4rem 1rem;
    border-radius: 1.5rem;
    box-shadow: 0 0.8rem 2rem rgba(0, 0, 0, 0.2);
    text-align: center;
}

.hero-title {
    font-size: 2.4rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-description {
    font-size: 1.4rem;
    line-height: 1.5;
    color: var(--white);
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    background: var(--accent-color);
    color: var(--white);
    padding: 1.2rem 2.5rem;
    border-radius: 2.5rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.4rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 180, 216, 0.3);
    min-width: 200px;
}

.cta-button:hover {
    background: var(--mid-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 180, 216, 0.4);
}

.section-container {
    margin: 6rem auto;
    width: 98%;
    max-width: 1200px;
    padding-left: 1rem;
    padding-right: 1rem;
}

.section-title {
    color: var(--primary-color);
    font-size: 2.4rem;
    margin-bottom: 3rem;
    font-weight: 700;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 8rem;
    height: 0.3rem;
    background: linear-gradient(90deg, var(--accent-color), var(--mid-primary));
    border-radius: 0.2rem;
}

.section-divider {
    content: '';
    display: block;
    width: 6rem;
    height: 0.2rem;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    margin: 0 auto 2rem;
    border-radius: 0.1rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.about-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 2rem;
    box-shadow: 0 0.8rem 2.5rem rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.about-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 1.5rem 4rem rgba(0, 180, 216, 0.15);
}

.card-icon {
    width: 7rem;
    height: 7rem;
    background: linear-gradient(135deg, var(--accent-color), var(--mid-primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    box-shadow: 0 0.8rem 2rem rgba(0, 180, 216, 0.25);
}

.card-icon i {
    color: var(--white);
    font-size: 2.8rem;
}

.card-title {
    color: var(--primary-color);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.card-description {
    color: var(--primary-color);
    font-size: 1.4rem;
    line-height: 1.6;
    opacity: 0.9;
}

.rules-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    max-width: 600px;
    margin: 0 auto;
}

.rule-card {
    background: linear-gradient(135deg, var(--secondary-color), var(--soft-accent));
    padding: 3rem 2rem;
    border-radius: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.rule-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 1rem 2.5rem rgba(0, 180, 216, 0.2);
}

.quiz-rules {
    background: var(--white);
    margin: 6rem auto;
    width: 95%;
    max-width: 1200px;
    padding: 4rem 2rem;
    border-radius: 2rem;
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.1);
    text-align: center;
}

.footer {
    background: linear-gradient(135deg, var(--primary-color), var(--mid-primary));
    color: var(--white);
    margin-top: 6rem;
    padding-top: 4rem;
    width: 100%;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.footer-section h3 {
    color: var(--secondary-color);
    font-size: 2rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.footer-section h4 {
    color: var(--secondary-color);
    font-size: 1.6rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.footer-section p {
    color: var(--white);
    font-size: 1.4rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.horizontal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: flex-start;
}

.horizontal-links a {
    color: var(--white);
    text-decoration: none;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    opacity: 0.9;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

.horizontal-links a:hover {
    color: var(--secondary-color);
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.social-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.8rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 0.5rem 1.5rem rgba(0, 180, 216, 0.3);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 3rem;
    padding: 1.5rem 0;
}

.footer-bottom-content {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.footer-bottom-content p {
    color: var(--white);
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.footer-bottom-content .fa-heart {
    color: #ff6b6b;
    margin: 0 0.3rem;
}

.categories-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.step-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 2rem;
    box-shadow: 0 0.8rem 2.5rem rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.step-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 1.5rem 4rem rgba(0, 180, 216, 0.15);
}

.step-number {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--accent-color), var(--mid-primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    color: var(--white);
    font-size: 2rem;
    font-weight: 700;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.stat-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 2rem;
    text-align: center;
    box-shadow: 0 0.8rem 2.5rem rgba(0, 0, 0, 0.08);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.stat-label {
    font-size: 1.6rem;
    color: var(--primary-color);
    font-weight: 600;
}

.categories-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.category-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 2rem;
    box-shadow: 0 0.8rem 2.5rem rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 1.5rem 4rem rgba(0, 180, 216, 0.15);
}

@media (min-width: 992px) {
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        padding: 1rem;
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .hamburger {
        display: none;
    }

    .nav-links {
        display: flex;
        justify-content: flex-end;
        align-items: center;
        gap: 2rem;
        list-style: none;
        position: static;
        width: auto;
        background: none;
        box-shadow: none;
        padding: 0;
    }

    .nav-links li {
        border-bottom: none;
        width: auto;
    }

    .nav-link {
        padding: 1rem 1.5rem;
        font-size: 1.4rem;
        width: auto;
        text-align: left;
    }

    .nav-link:hover {
        color: var(--secondary-color);
        background-color: transparent;
    }

    .hero-section {
        width: 90%;
        max-width: 1400px;
        padding: 6rem 4rem;
        margin-top: 10rem;
        margin-bottom: 8rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-description {
        font-size: 1.6rem;
    }
    
    .cta-button {
        padding: 2rem 4rem;
        font-size: 2rem;
    }
    
    .section-container {
        margin: 8rem auto;
        width: 90%;
        max-width: 1400px;
        padding-left: 3rem;
        padding-right: 3rem;
    }
    
    .section-title {
        font-size: 3rem;
        margin-bottom: 3.5rem;
    }
    
    .about-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 5rem;
    }
    
    .about-card {
        padding: 5rem 3rem;
    }
    
    .card-title {
        font-size: 2.2rem;
    }
    
    .card-description {
        font-size: 1.7rem;
    }
    
    .card-icon {
        width: 8rem;
        height: 8rem;
    }
    
    .card-icon i {
        font-size: 3.2rem;
    }
    
    .rules-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 4rem;
        max-width: 900px;
    }
    
    .rule-card {
        padding: 4rem 2.5rem;
    }
    
    .rule-card .card-title {
        font-size: 2rem;
    }
    
    .rule-card .card-description {
        font-size: 1.6rem;
    }
    
    .rule-card .card-icon {
        width: 7rem;
        height: 7rem;
    }
    
    .rule-card .card-icon i {
        font-size: 2.8rem;
    }
    
    .footer {
        margin-top: 8rem;
        padding-top: 5rem;
    }
    
    .footer-content {
        max-width: 1400px;
        grid-template-columns: repeat(2, 1fr);
        gap: 6rem;
        padding: 0 3rem;
    }
    
    .horizontal-links {
        gap: 3rem;
    }
    
    .horizontal-links a {
        font-size: 1.6rem;
        padding: 0.8rem 1.5rem;
    }
    
    .social-links a {
        width: 4.5rem;
        height: 4.5rem;
        font-size: 2rem;
    }
    
    .footer-bottom {
        margin-top: 6rem;
        padding: 3rem 0;
    }
    
    .footer-bottom-content p {
        font-size: 1.5rem;
    }

    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 4rem;
    }
    
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 4rem;
        max-width: 1200px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 4rem;
        max-width: 1200px;
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 4rem;
    }
    
    .category-card {
        padding: 4rem 3rem;
    }
}