@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: #1a1a1a;
    background: #ffffff;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

a { color: #1A81EE; text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Nav ─── */
.nav {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 22px;
    color: #1a1a1a;
    text-decoration: none;
}
.nav-logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}
.nav-logo span { color: #1A81EE; }
.nav-links {
    display: flex;
    gap: 32px;
    font-size: 14px;
}
.nav-links a {
    color: #888;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links a:hover { color: #1A81EE; text-decoration: none; }
.nav-links a.active { color: #1A81EE; }

/* ─── Container ─── */
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 64px 32px 120px;
}

/* ─── Hero ─── */
.page-badge {
    display: inline-block;
    background: #EEF4FF;
    color: #1A81EE;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 20px;
    letter-spacing: 0.02em;
}
h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    color: #0a0a0a;
}
h1 em {
    font-style: italic;
    color: #1A81EE;
}
.page-subtitle {
    color: #888;
    font-size: 16px;
    margin-bottom: 56px;
    font-weight: 400;
}

/* ─── Sections ─── */
h2 {
    font-size: 18px;
    font-weight: 700;
    margin-top: 56px;
    margin-bottom: 20px;
    color: #0a0a0a;
    letter-spacing: -0.01em;
}
h2 .num {
    color: #1A81EE;
    margin-right: 6px;
}
h3 {
    font-size: 15px;
    font-weight: 600;
    margin-top: 28px;
    margin-bottom: 10px;
    color: #1a1a1a;
}
p {
    margin-bottom: 16px;
    color: #555;
    font-size: 15px;
    line-height: 1.8;
}
ul, ol {
    margin-bottom: 16px;
    padding-left: 20px;
    color: #555;
    font-size: 15px;
}
li {
    margin-bottom: 8px;
    line-height: 1.7;
}
strong { font-weight: 600; color: #1a1a1a; }

/* ─── Cards / Callouts ─── */
.callout {
    background: #FFF8F0;
    border: 1px solid #FFE4C4;
    border-radius: 16px;
    padding: 20px 24px;
    margin: 28px 0;
    font-size: 14px;
    color: #8B5E34;
    line-height: 1.7;
}
.callout-blue {
    background: #EEF4FF;
    border-color: #C4DBFF;
    color: #2563EB;
}
.callout strong { color: inherit; }

/* ─── Table ─── */
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 20px 0 24px;
    font-size: 14px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e5e7eb;
}
th {
    text-align: left;
    padding: 12px 16px;
    background: #f8f9fb;
    font-weight: 600;
    font-size: 13px;
    color: #555;
    border-bottom: 1px solid #e5e7eb;
}
td {
    padding: 12px 16px;
    border-bottom: 1px solid #f3f4f6;
    color: #555;
}
tr:last-child td { border-bottom: none; }

/* ─── Index Cards ─── */
.hero-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 40px;
}
.hero-link {
    display: block;
    padding: 28px;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 20px;
    transition: all 0.25s ease;
    text-decoration: none;
}
.hero-link:hover {
    border-color: #1A81EE;
    box-shadow: 0 8px 32px rgba(26,129,238,0.08);
    transform: translateY(-2px);
    text-decoration: none;
}
.hero-link .icon {
    margin-bottom: 14px;
    display: block;
    color: #1A81EE;
}
.hero-link .icon svg {
    width: 32px;
    height: 32px;
}
.hero-link h3 {
    margin: 0 0 6px;
    font-size: 16px;
    font-weight: 600;
    color: #0a0a0a;
}
.hero-link p {
    margin: 0;
    font-size: 14px;
    color: #999;
}

/* ─── FAQ ─── */
.faq-item {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 16px;
    padding: 22px 28px;
    margin-bottom: 12px;
    transition: border-color 0.2s;
}
.faq-item:hover { border-color: #ccc; }
.faq-item h3 {
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 8px;
    color: #0a0a0a;
}
.faq-item p {
    margin: 0;
    font-size: 14px;
    color: #888;
    line-height: 1.7;
}

/* ─── Contact Card ─── */
.contact-card {
    background: linear-gradient(135deg, #EEF4FF 0%, #F8FAFF 100%);
    border: 1px solid #D6E4FF;
    border-radius: 24px;
    padding: 48px 32px;
    text-align: center;
    margin-bottom: 56px;
}
.contact-card .icon { margin-bottom: 16px; }
.contact-card h2 { border: none; margin-top: 0; margin-bottom: 8px; padding: 0; }
.contact-card p { margin-bottom: 8px; }
.contact-card a.email {
    font-size: 20px;
    font-weight: 600;
    color: #1A81EE;
}

/* ─── Bug Report ─── */
.bug-card {
    background: #FFF8F0;
    border: 1px solid #FFE4C4;
    border-radius: 20px;
    padding: 28px;
    margin-top: 40px;
}
.bug-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 12px;
}
.bug-card ul { margin-bottom: 0; }

/* ─── Divider ─── */
.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, #e5e7eb 20%, #e5e7eb 80%, transparent);
    margin: 56px 0 0;
}

/* ─── Footer ─── */
.footer {
    border-top: 1px solid #f0f0f0;
    padding: 40px 32px;
    text-align: center;
}
.footer-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer-left {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #bbb;
    font-weight: 500;
}
.footer-left span { color: #1A81EE; font-weight: 700; }
.footer-right { display: flex; gap: 24px; }
.footer-right a { color: #bbb; font-size: 13px; font-weight: 500; }
.footer-right a:hover { color: #1A81EE; text-decoration: none; }

/* ─── Responsive ─── */
@media (max-width: 640px) {
    .container { padding: 40px 20px 80px; }
    h1 { font-size: 28px; }
    .nav-inner { padding: 0 20px; }
    .nav-links { gap: 16px; font-size: 13px; }
    .hero-links { grid-template-columns: 1fr; }
    .footer-inner { flex-direction: column; gap: 16px; }
    table { font-size: 13px; }
    th, td { padding: 10px 12px; }
}