:root {
    --blue: #2f63c7;
    --blue-dark: #1e3f8f;
    --red: #d71920;
    --white: #ffffff;
    --light: #f4f6fb;
    --dark: #111827;
    --gray: #6b7280;
    --border: #e5e7eb;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--dark);
    background: var(--light);
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: min(1180px, calc(100% - 32px));
    margin: auto;
}

.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    min-height: 84px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-area img {
    width: 58px;
    height: 58px;
    object-fit: contain;
}

.logo-area h1 {
    margin: 0;
    font-size: 24px;
    color: var(--blue-dark);
}

.logo-area p {
    margin: 2px 0 0;
    color: var(--gray);
    font-size: 14px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-nav a {
    padding: 10px 14px;
    border-radius: 999px;
    font-weight: 600;
    color: var(--dark);
}

.main-nav a:hover,
.main-nav a.active {
    background: var(--blue);
    color: var(--white);
}

.menu-toggle {
    display: none;
    background: var(--blue);
    color: var(--white);
    border: none;
    font-size: 26px;
    padding: 8px 12px;
    border-radius: 8px;
}

.hero {
    background:
        linear-gradient(120deg, rgba(30, 63, 143, 0.92), rgba(215, 25, 32, 0.78)),
        url('/assets/photos/photo1.jpg') center/cover;
    color: var(--white);
    min-height: 420px;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 760px;
}

.hero h2 {
    font-size: clamp(36px, 5vw, 62px);
    margin: 12px 0;
}

.hero p {
    font-size: 19px;
    line-height: 1.6;
}

.badge {
    display: inline-block;
    background: var(--red);
    color: var(--white);
    padding: 8px 14px;
    border-radius: 999px;
    font-weight: bold;
}

.section {
    padding: 56px 0;
}

.section.light {
    background: var(--white);
}

.section-title {
    font-size: 30px;
    margin-top: 0;
    color: var(--blue-dark);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.card {
    background: var(--white);
    border-radius: 18px;
    padding: 28px;
    box-shadow: 0 12px 30px rgba(17, 24, 39, 0.08);
    border: 1px solid var(--border);
}

.card h3 {
    margin-top: 0;
    color: var(--blue-dark);
    font-size: 24px;
}

.flash-card {
    border-top: 5px solid var(--red);
}

.flash-card ul {
    padding-left: 20px;
    line-height: 1.8;
}

.page-title {
    background: linear-gradient(120deg, var(--blue-dark), var(--blue));
    color: var(--white);
    padding: 70px 0;
}

.page-title h2 {
    margin: 0 0 10px;
    font-size: 42px;
}

.page-title p {
    margin: 0;
    font-size: 18px;
}

.btn-primary,
.btn-secondary {
    display: inline-block;
    margin-top: 16px;
    padding: 12px 18px;
    border-radius: 999px;
    font-weight: bold;
}

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

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

.slider {
    position: relative;
    height: 360px;
    overflow: hidden;
    border-radius: 22px;
    background: var(--light);
    box-shadow: 0 12px 30px rgba(17, 24, 39, 0.12);
}

.slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.slide.active {
    opacity: 1;
}

.help-text {
    color: var(--gray);
    margin-top: 16px;
}

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

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-content p {
    margin: 0;
}

@media (max-width: 820px) {
    .menu-toggle {
        display: block;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 84px;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 16px;
        flex-direction: column;
        border-bottom: 1px solid var(--border);
    }

    .main-nav.open {
        display: flex;
    }

    .main-nav a {
        width: 100%;
        text-align: center;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: 360px;
    }

    .slider {
        height: 260px;
    }
    .social-link {
    display: inline-block;
    padding: 10px 16px;
    background: #1877f2;
    color: white;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    }

    .social-link:hover {
        opacity: 0.9;
    }
}