:root {
    --brand: #1115a8;
    --brand-dark: #090d67;
    --ink: #111827;
    --muted: #5d6678;
    --surface: #ffffff;
    --soft: #f4f6fb;
    --line: #dce1ea;
    --success: #117a52;
    --success-soft: #e9f8f1;
    --danger: #b42318;
    --danger-soft: #fff0ee;
    --shadow: 0 22px 60px rgba(17, 24, 39, 0.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
    background: var(--soft);
    font-family: "Segoe UI", Arial, sans-serif;
    line-height: 1.55;
}
a { color: inherit; }
button, input { font: inherit; }
.shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.site-header { background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); }
.navigation { min-height: 96px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand img { display: block; width: 270px; max-height: 76px; object-fit: contain; object-position: left center; }
.navigation nav { display: flex; align-items: center; gap: 14px; }
.navigation nav a { padding: 10px 14px; color: var(--muted); text-decoration: none; font-weight: 650; border-radius: 10px; }
.navigation nav a:hover, .navigation nav a.active { color: var(--brand); background: #eef0ff; }
.navigation nav a.button-link { color: #fff; background: var(--brand); }

.hero { padding: 90px 0 76px; background: radial-gradient(circle at 75% 15%, #dfe3ff 0, transparent 34%), linear-gradient(145deg, #fff 0%, #f3f5ff 65%, #eceeff 100%); }
.hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 64px; align-items: center; }
.eyebrow { margin: 0 0 10px; color: var(--brand); font-size: .78rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 20px; font-size: clamp(2.6rem, 6vw, 5.2rem); line-height: .98; letter-spacing: -.055em; }
.hero-lead { max-width: 660px; margin-bottom: 30px; color: var(--muted); font-size: 1.18rem; }
.hero-actions { display: flex; gap: 12px; }
.primary-action, .secondary-action, .text-action, .query-form button {
    display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 20px;
    border: 1px solid transparent; border-radius: 10px; cursor: pointer; font-weight: 750; text-decoration: none;
}
.primary-action, .query-form button { color: #fff; background: var(--brand); }
.primary-action:hover, .query-form button:hover { background: var(--brand-dark); }
.secondary-action { color: var(--brand); background: #fff; border-color: var(--brand); }
.text-action { color: var(--muted); background: transparent; }
.privacy-note { margin: 18px 0 0; color: var(--muted); font-size: .9rem; }
.hero-card { min-height: 330px; padding: 46px; color: #fff; background: linear-gradient(145deg, var(--brand), var(--brand-dark)); border-radius: 28px; box-shadow: var(--shadow); display: flex; flex-direction: column; justify-content: space-between; }
.hero-card strong { font-size: 1.5rem; }
.hero-card p { margin: 8px 0 0; color: #dfe3ff; }
.document-icon { width: 108px; height: 132px; padding: 38px 22px 0; background: #fff; border-radius: 9px; box-shadow: 13px 13px 0 rgba(255,255,255,.18); transform: rotate(3deg); }
.document-icon span { display: block; height: 7px; margin-bottom: 13px; background: #b7baff; border-radius: 4px; }
.feature-section { padding: 76px 0 90px; background: #fff; }
.section-heading { max-width: 680px; margin-bottom: 34px; }
.section-heading h2, .section-heading h1 { margin-bottom: 10px; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.08; letter-spacing: -.035em; }
.section-heading p:last-child { color: var(--muted); }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.features article { padding: 28px; background: var(--soft); border: 1px solid var(--line); border-radius: 18px; }
.features h3 { margin: 18px 0 8px; }
.features p { margin: 0; color: var(--muted); }
.step { color: var(--brand); font-weight: 900; letter-spacing: .08em; }

.query-section { padding: 64px 0 90px; min-height: calc(100vh - 175px); }
.query-shell { max-width: 980px; }
.section-heading.compact { margin-left: auto; margin-right: auto; text-align: center; }
.query-form, .result-card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
.query-form { margin-bottom: 24px; padding: 24px; }
.query-form label { display: block; margin-bottom: 8px; font-weight: 750; }
.query-control { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.query-control input { width: 100%; min-width: 0; padding: 13px 15px; border: 1px solid #aeb6c5; border-radius: 10px; color: var(--ink); letter-spacing: .035em; text-transform: uppercase; }
.query-control input:focus { outline: 3px solid #dfe2ff; border-color: var(--brand); }
.query-control input[aria-invalid="true"] { border-color: var(--danger); outline-color: var(--danger-soft); }
.query-form small { display: block; margin-top: 8px; color: var(--muted); }
.field-error { margin: 7px 0 0; color: var(--danger); font-weight: 650; }
.result-card { min-height: 260px; padding: 30px; }
.empty-state, .loading-state { min-height: 200px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.empty-state p, .loading-state p { max-width: 560px; margin-bottom: 0; color: var(--muted); }
.search-symbol { width: 46px; height: 46px; margin-bottom: 20px; border: 5px solid var(--brand); border-radius: 50%; position: relative; }
.search-symbol::after { content: ''; width: 20px; height: 5px; background: var(--brand); position: absolute; right: -16px; bottom: -7px; transform: rotate(45deg); border-radius: 4px; }
.failure-symbol { width: 48px; height: 48px; margin-bottom: 18px; color: #fff; background: var(--danger); border-radius: 50%; display: grid; place-items: center; font-weight: 900; font-size: 1.45rem; }
.failure-state .secondary-action { margin-top: 18px; }
.spinner { width: 42px; height: 42px; margin-bottom: 18px; border: 4px solid #dfe2ff; border-top-color: var(--brand); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.result-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.result-header h2 { margin-bottom: 10px; }
.status { display: inline-flex; padding: 5px 10px; border-radius: 999px; font-size: .82rem; font-weight: 800; }
.status-success { color: var(--success); background: var(--success-soft); }
.status-danger { color: var(--danger); background: var(--danger-soft); }
.total-block { min-width: 150px; text-align: right; }
.total-block small { display: block; color: var(--muted); }
.total-block strong { font-size: 1.65rem; }
.status-message { margin: 22px 0; padding: 14px 16px; border-radius: 10px; }
.status-message strong, .status-message span { display: block; }
.status-message span { margin-top: 3px; color: var(--muted); }
.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.detail-grid section { min-width: 0; }
.detail-grid h3 { padding-bottom: 10px; border-bottom: 1px solid var(--line); font-size: 1rem; }
dl, dd { margin: 0; }
dl > div { margin-bottom: 13px; }
dt { color: var(--muted); font-size: .76rem; font-weight: 750; text-transform: uppercase; letter-spacing: .045em; }
dd { overflow-wrap: anywhere; font-weight: 600; }
.identifier { font-family: Consolas, "Courier New", monospace; font-size: .85rem; }
.download-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--line); }

.site-footer { padding: 28px 0; color: #d9dcf4; background: #0c1038; }
.footer-content { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-content strong, .footer-content span { display: block; }
.footer-content span, .footer-content p { margin: 0; color: #aeb4d6; font-size: .9rem; }

@media (max-width: 760px) {
    .shell { width: min(100% - 26px, 1120px); }
    .navigation { min-height: auto; padding: 14px 0; align-items: flex-start; }
    .brand img { width: 185px; max-height: 62px; }
    .navigation nav { flex-direction: column; align-items: stretch; gap: 4px; text-align: center; }
    .navigation nav a { padding: 8px 10px; }
    .hero { padding: 58px 0; }
    .hero-grid, .features, .detail-grid { grid-template-columns: 1fr; }
    .hero-grid { gap: 34px; }
    .hero-card { min-height: 270px; padding: 32px; }
    .query-section { padding-top: 42px; }
    .query-control { grid-template-columns: 1fr; }
    .result-card { padding: 20px; }
    .result-header, .footer-content { align-items: flex-start; flex-direction: column; }
    .total-block { text-align: left; }
    .download-row > * { width: 100%; }
}