/* ═══════════════════════════════════════════════════════════════════════════
   fastOcr — 浅色商务风
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --accent: #7c3aed;
    --success: #16a34a;
    --warning: #f59e0b;
    --danger: #dc2626;
    --text: #1e293b;
    --text-secondary: #64748b;
    --bg: #ffffff;
    --bg-secondary: #f8fafc;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
    --radius: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Navbar ── */
.navbar {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.navbar-brand {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.navbar-brand span { color: var(--text); }
.navbar-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}
.navbar-nav a {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}
.navbar-nav a:hover, .navbar-nav a.active { color: var(--primary); }
.navbar-actions { display: flex; gap: 12px; align-items: center; }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    gap: 6px;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-success { background: var(--success); color: #fff; }

/* ── Hero ── */
.hero {
    padding: 80px 0 60px;
    text-align: center;
    background: linear-gradient(135deg, var(--bg) 0%, var(--primary-light) 100%);
}
.hero h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1px;
}
.hero h1 em { font-style: normal; color: var(--primary); }
.hero p {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; }

/* ── Section ── */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-secondary); }
.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
}
.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 48px;
}

/* ── Cards Grid ── */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all 0.2s;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--text-secondary); font-size: 14px; }
.card .badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-top: 12px;
}
.badge-success { background: #dcfce7; color: var(--success); }
.badge-warning { background: #fef3c7; color: var(--warning); }
.badge-info { background: var(--primary-light); color: var(--primary); }

/* ── Stats ── */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    text-align: center;
}
.stat-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
}
.stat-label {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

/* ── Pricing Table ── */
.pricing-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.pricing-table th, .pricing-table td {
    padding: 12px 16px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}
.pricing-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 13px;
    text-transform: uppercase;
}
.pricing-table tr:hover td { background: var(--primary-light); }

/* ── Code Block ── */
.code-block {
    background: #1e293b;
    color: #e2e8f0;
    padding: 20px 24px;
    border-radius: var(--radius);
    font-family: "SF Mono", "Fira Code", "Consolas", monospace;
    font-size: 14px;
    line-height: 1.7;
    overflow-x: auto;
    white-space: pre;
}
.code-block .kw { color: #c084fc; }
.code-block .str { color: #86efac; }
.code-block .cm { color: #94a3b8; }
.code-block .fn { color: #67e8f9; }

/* ── Tabs ── */
.tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 2px solid var(--border); }
.tab {
    padding: 10px 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}
.tab:hover { color: var(--primary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Forms ── */
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
}
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    transition: border-color 0.2s;
    background: var(--bg);
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }

/* ── Dashboard ── */
.dash-grid {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 32px;
    min-height: calc(100vh - 64px);
}
.dash-sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 24px 0;
}
.dash-sidebar a {
    display: block;
    padding: 10px 24px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}
.dash-sidebar a:hover, .dash-sidebar a.active {
    color: var(--primary);
    background: var(--primary-light);
    border-right: 3px solid var(--primary);
}
.dash-content { padding: 32px 0; }
.dash-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
}
.dash-card h3 { font-size: 16px; margin-bottom: 16px; }

/* ── Auth Pages ── */
.auth-container {
    max-width: 420px;
    margin: 60px auto;
    padding: 40px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}
.auth-container h2 { text-align: center; margin-bottom: 24px; font-size: 24px; }
.auth-container .form-group { margin-bottom: 16px; }
.auth-container .btn { width: 100%; padding: 12px; }
.auth-link { text-align: center; margin-top: 16px; font-size: 14px; color: var(--text-secondary); }

/* ── Footer ── */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 40px 0 24px;
    margin-top: 64px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
    margin-bottom: 32px;
}
.footer h4 { font-size: 14px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.footer a { display: block; color: var(--text-secondary); font-size: 13px; margin-bottom: 8px; }
.footer a:hover { color: var(--primary); }
.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 13px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .navbar-nav { display: none; }
    .hero h1 { font-size: 32px; }
    .stats-row { grid-template-columns: 1fr; }
    .dash-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ── Utility ── */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 16px; }