:root {
    --bg: #ffffff;
    --bg-elev: #f4f7fb;
    --navy: #0a1628;
    --blue: #1a7dff;
    --blue-deep: #0b4aa8;
    --blue-soft: #0d5ec9;
    --text: #1b2433;
    --muted: #5b6b82;
    --card: #ffffff;
    --border: #d7e1ee;
    --danger: #c23b3b;
    --ok: #1e9d63;
    --radius: 16px;
    --shadow: 0 16px 40px rgba(15, 36, 70, 0.08);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "Segoe UI", Calibri, system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}
img { max-width: 100%; height: auto; }
a { color: var(--blue-soft); text-decoration: none; }
a:hover { color: var(--blue-deep); }
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 7vw;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}
.brand img, .auth-logo, .portal-header .brand img {
    display: block;
    background: transparent;
}
.brand img { height: 48px; width: auto; }
.site-nav {
    display: flex;
    align-items: center;
    gap: 22px;
}
.site-nav a { color: var(--text); font-weight: 600; font-size: 0.95rem; }
.site-nav a.login-link {
    background: var(--blue);
    border: 1px solid var(--blue);
    padding: 8px 14px;
    border-radius: 999px;
    color: #fff;
}
.site-nav a.login-link:hover { color: #fff; filter: brightness(1.06); }
.nav-toggle {
    display: none;
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
}
.hero {
    min-height: calc(100vh - 84px);
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
    padding: 48px 7vw 72px;
    background:
        radial-gradient(900px 420px at 80% -10%, rgba(26, 125, 255, 0.14), transparent 55%),
        radial-gradient(700px 380px at 0% 80%, rgba(11, 74, 168, 0.08), transparent 50%),
        linear-gradient(180deg, #ffffff, #f3f7fd 70%, #ffffff);
}
.eyebrow {
    color: var(--blue-soft);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 700;
    margin: 0 0 10px;
}
.hero h1, .page-intro h1, h1, h2, h3 { line-height: 1.15; color: var(--navy); }
.hero h1 { font-size: clamp(2rem, 4vw, 3.4rem); margin: 0 0 16px; }
.lede, .muted { color: var(--muted); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-logo {
    justify-self: center;
    max-width: 460px;
    filter: drop-shadow(0 18px 28px rgba(15, 36, 70, 0.12));
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, var(--blue), var(--blue-deep));
    color: #fff;
    border: 0;
    border-radius: 999px;
    padding: 12px 20px;
    font-weight: 700;
    cursor: pointer;
}
.btn:hover { color: #fff; filter: brightness(1.08); }
.btn-ghost {
    background: #fff;
    color: var(--blue-deep);
    border: 1px solid var(--border);
}
.btn-ghost:hover { color: var(--blue-deep); }
.btn-small { padding: 6px 12px; font-size: 0.85rem; border-radius: 8px; }
.btn-danger { background: linear-gradient(180deg, #c94a4a, #8f2d2d); }
section.band { padding: 72px 7vw; background: #fff; }
section.band.alt {
    background: var(--bg-elev);
}
.section-head { max-width: 760px; margin-bottom: 36px; }
.card-grid, .stat-grid {
    display: grid;
    gap: 20px;
}
.card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card, .stat-card, .service-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}
.service-card h3 { margin-top: 0; color: var(--navy); }
.icon-pill {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    background: rgba(26, 125, 255, 0.12);
    color: var(--blue-deep);
    font-weight: 800;
    margin-bottom: 12px;
}
.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}
.checklist { padding-left: 18px; }
.checklist li { margin: 8px 0; }
.contact-form, .stack-form, .auth-card form {
    display: grid;
    gap: 14px;
}
label { display: grid; gap: 6px; font-weight: 600; }
input, select, textarea {
    width: 100%;
    background: #fff;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 11px 12px;
    font: inherit;
}
textarea { resize: vertical; }
.alert {
    border-radius: 10px;
    padding: 12px 14px;
}
.alert.error { background: #fdecec; color: var(--danger); }
.alert.success { background: #e8f8ef; color: var(--ok); }
.site-footer {
    padding: 28px 7vw;
    background: #000;
    color: #fff;
    text-align: center;
    display: block;
}
.auth-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(600px 240px at 50% 0%, rgba(26, 125, 255, 0.12), transparent 60%),
        var(--bg-elev);
}
.auth-card {
    width: min(460px, 100%);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
}
.auth-logo { height: 72px; margin: 0 auto 12px; }
.small { font-size: 0.85rem; }
.portal-body { min-height: 100vh; background: var(--bg-elev); }
.portal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 8px 4vw;
    border-bottom: 1px solid var(--border);
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 20;
}
.portal-header .brand img { height: 52px; }
.portal-nav { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.portal-nav a { color: var(--text); font-weight: 600; }
.portal-main { padding: 28px 4vw 64px; }
.page-intro { margin-bottom: 24px; }
.stat-grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); margin-bottom: 24px; }
.stat-card strong { display: block; font-size: 2rem; color: var(--navy); }
.filter-bar, .form-row, .action-row, .detail-grid {
    display: grid;
    gap: 12px;
}
.filter-bar {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    margin-bottom: 18px;
    align-items: end;
}
.form-row { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.detail-grid { grid-template-columns: 1.2fr 0.8fr; margin-bottom: 24px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; background: #fff; }
.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 860px;
}
.data-table th, .data-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}
.data-table th { background: #eef3f9; color: var(--navy); }
.data-table a { color: var(--text); }
.data-table a.btn-update {
    color: #BDBFBF;
}
.attach-list { padding-left: 18px; }
.attach-list li { margin: 6px 0; }
.meta { display: grid; gap: 8px; }
.meta div { display: grid; grid-template-columns: 160px 1fr; gap: 8px; }
.prewrap { white-space: pre-wrap; }
.check { display: flex; gap: 8px; align-items: center; font-weight: 500; }
.check input { width: auto; }
fieldset { border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; background: #fff; }
.stack-form { max-width: 720px; }

@media (max-width: 900px) {
    .hero, .split, .card-grid, .detail-grid { grid-template-columns: 1fr; }
    .nav-toggle { display: inline-flex; }
    .site-nav, .portal-nav {
        display: none;
        position: absolute;
        top: 76px;
        right: 16px;
        left: 16px;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 16px;
        flex-direction: column;
        align-items: flex-start;
    }
    .site-nav.open, .portal-nav.open { display: flex; }
    .site-header, .portal-header { position: sticky; }
    .brand img { height: 44px; }
    .hero { padding-top: 28px; min-height: auto; }
    .hero-logo { max-width: 280px; }
    section.band { padding: 48px 6vw; }
    .meta div { grid-template-columns: 1fr; }
}