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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #ffffff;
}

a {
    color: #2563eb;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.container.narrow {
    max-width: 720px;
}

/* ===== Header ===== */
.header {
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.35rem;
    font-weight: 700;
    color: #111827;
    text-decoration: none;
}

.logo:hover {
    text-decoration: none;
}

.nav {
    display: flex;
    gap: 28px;
}

.nav a {
    color: #4b5563;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
}

.nav a:hover,
.nav a.active {
    color: #111827;
}

/* ===== Hero ===== */
.hero {
    padding: 100px 0 80px;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    text-align: center;
}

.hero h1 {
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1.2;
    color: #111827;
    max-width: 700px;
    margin: 0 auto 20px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #4b5563;
    max-width: 560px;
    margin: 0 auto 36px;
}

.btn {
    display: inline-block;
    background: #2563eb;
    color: #ffffff;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: background 0.2s;
}

.btn:hover {
    background: #1d4ed8;
    text-decoration: none;
}

/* ===== Features ===== */
.features {
    padding: 80px 0;
}

.features h2 {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 48px;
    color: #111827;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.feature-card {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 32px 28px;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: #111827;
}

.feature-card p {
    color: #4b5563;
    font-size: 0.95rem;
}

/* ===== CTA ===== */
.cta {
    padding: 70px 0;
    background: #f1f5f9;
    text-align: center;
}

.cta h2 {
    font-size: 1.6rem;
    margin-bottom: 12px;
    color: #111827;
}

.cta p {
    color: #4b5563;
    max-width: 500px;
    margin: 0 auto;
}

/* ===== Page Header ===== */
.page-header {
    padding: 60px 0 30px;
    background: #f8fafc;
    border-bottom: 1px solid #e5e7eb;
}

.page-header h1 {
    font-size: 2.2rem;
    color: #111827;
}

.page-header .updated {
    color: #6b7280;
    font-size: 0.95rem;
    margin-top: 8px;
}

/* ===== Content ===== */
.content {
    padding: 50px 0 80px;
}

.content h2 {
    font-size: 1.35rem;
    margin: 36px 0 12px;
    color: #111827;
}

.content p {
    margin-bottom: 16px;
    color: #374151;
}

.content .lead {
    font-size: 1.2rem;
    color: #1f2937;
    margin-bottom: 24px;
}

.content .motto {
    font-size: 1.15rem;
    font-weight: 500;
    color: #2563eb;
    font-style: italic;
}

/* ===== Footer ===== */
.footer {
    background: #111827;
    color: #d1d5db;
    padding: 48px 0 28px;
}

.footer a {
    color: #93c5fd;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 32px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: #d1d5db;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: #ffffff;
}

.copyright {
    font-size: 0.875rem;
    color: #9ca3af;
    border-top: 1px solid #1f2937;
    padding-top: 20px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        height: auto;
        padding: 16px 24px;
        gap: 12px;
    }

    .nav {
        gap: 18px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding: 70px 0 60px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.05rem;
    }

    .features {
        padding: 60px 0;
    }

    .page-header {
        padding: 40px 0 24px;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }

    .footer-content {
        flex-direction: column;
    }
}