/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #1b3a4b;
    --color-primary-dark: #122a37;
    --color-accent: #c5a04e;
    --color-accent-light: #d4b366;
    --color-text: #333;
    --color-text-light: #666;
    --color-bg: #ffffff;
    --color-bg-alt: #f5f7fa;
    --color-border: #e0e4e8;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --max-width: 1100px;
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--color-text);
    line-height: 1.6;
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-img {
    height: 48px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-text);
    font-size: 0.925rem;
    font-weight: 500;
    transition: color var(--transition);
}

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

/* Hero */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #1b3a4b 0%, #244e63 100%);
    color: #fff;
    text-align: center;
}

.hero-logo {
    width: 340px;
    height: auto;
    margin-bottom: 32px;
    filter: drop-shadow(0 4px 16px rgba(0, 0, 0, 0.4));
}

.hero h1 {
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.15rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 36px;
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: #fff;
    color: var(--color-primary);
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-1px);
}

/* Sections */
.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--color-bg-alt);
}

.section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* Content Grid */
.content-grid {
    max-width: 700px;
    margin: 32px auto 0;
}

.content-block p {
    margin-bottom: 16px;
    font-size: 1.05rem;
    color: var(--color-text-light);
    text-align: center;
}

/* Cards */
.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 48px;
}

.card {
    background: #fff;
    padding: 36px 28px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--color-accent);
}

.card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 12px;
}

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

/* Partners */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.partner-card {
    display: block;
    background: #fff;
    padding: 32px 20px;
    border-radius: 8px;
    text-align: center;
    text-decoration: none;
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.partner-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--color-accent);
}

.partner-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.partner-card p {
    color: var(--color-text-light);
    font-size: 0.875rem;
    line-height: 1.4;
}

/* Contact */
.contact-content {
    text-align: center;
    margin-top: 32px;
}

.contact-content p {
    font-size: 1.05rem;
    color: var(--color-text-light);
}

.contact-email {
    margin-top: 16px;
}

.contact-email a {
    font-size: 1.25rem;
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
}

.contact-email a:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    padding: 32px 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-size: 0.875rem;
}

/* Mobile */
@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px 24px;
        gap: 16px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    }

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

    .hero {
        padding: 120px 0 70px;
    }

    .hero h1 {
        font-size: 1.85rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .section {
        padding: 56px 0;
    }
}