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

:root {
    --bg-primary: #4A4A4A;
    --bg-secondary: #3d3d3d;
    --bg-card: rgba(255, 255, 255, 0.13);
    --bg-card-hover: rgba(255, 255, 255, 0.18);
    --text-primary: #FFFFE3;
    --text-secondary: rgba(255, 255, 227, 0.88);
    --text-muted: rgba(255, 255, 227, 0.50);
    --accent: #6D8196;
    --accent-glow: rgba(109, 129, 150, 0.35);
    --border: rgba(255, 255, 255, 0.10);
    --border-hover: rgba(255, 255, 255, 0.15);
    --radius: 12px;
    --radius-lg: 20px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

/* ===== Nav ===== */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(74, 74, 74, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

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

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text-primary);
    opacity: 1;
}

/* ===== Main Content ===== */
main {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Hero ===== */
.hero {
    padding-top: 160px;
    padding-bottom: 80px;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, #FFFFE3 0%, #6D8196 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.tagline {
    font-size: 1.3rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 12px;
}

.subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
}

/* ===== Features ===== */
.features {
    padding: 40px 0 80px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: background 0.3s, border-color 0.3s, transform 0.3s;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.8rem;
    margin-bottom: 14px;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
}

/* ===== CTA ===== */
.cta {
    text-align: center;
    padding: 60px 0 100px;
}

.cta h2 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.cta p {
    color: var(--text-secondary);
    margin-bottom: 28px;
    font-size: 1.05rem;
}

.btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 14px 32px;
    border-radius: 50px;
    transition: box-shadow 0.3s, transform 0.2s;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 30px var(--accent-glow);
    opacity: 1;
}

/* ===== Footer ===== */
footer {
    border-top: 1px solid var(--border);
    padding: 40px 24px;
}

.footer-container {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.copyright {
    color: var(--text-muted);
    font-size: 0.82rem;
}

/* ===== Page Content (for policy / terms / support pages) ===== */
.page-content {
    padding-top: 120px;
    padding-bottom: 80px;
    max-width: 720px;
    margin: 0 auto;
}

.page-content h1 {
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}

.page-content .last-updated {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 40px;
}

.page-content h2 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-top: 40px;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.page-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 28px;
    margin-bottom: 8px;
}

.page-content p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.page-content ul,
.page-content ol {
    color: var(--text-secondary);
    padding-left: 24px;
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.page-content li {
    margin-bottom: 8px;
}

.page-content strong {
    color: var(--text-primary);
}

.page-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 40px 0;
}

/* ===== FAQ Section ===== */
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 12px;
    transition: background 0.3s, border-color 0.3s;
}

.faq-item:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}

.faq-item h3 {
    margin-top: 0;
    margin-bottom: 8px;
}

.faq-item p,
.faq-item ol {
    margin-bottom: 0;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
    .hero h1 {
        font-size: 2.8rem;
    }

    .tagline {
        font-size: 1.1rem;
    }

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

    .nav-links {
        gap: 16px;
    }

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