/* Instafill.ai Trust Center. Colors follow DESIGN.md (agent palette). */
:root {
    --canvas: #f1f4f7;
    --surface: #ffffff;
    --sunken: #f7f9fb;
    --line: #e2e7ed;
    --line-strong: #c9d2dc;
    --ink: #101720;
    --ink-2: #4c5a6b;
    --ink-3: #5f6d7e;
    --brand: #1a56db;
    --brand-press: #1443b4;
    --brand-soft: #e9f0fe;
    --ok: #0f8a4d;
    --ok-soft: #e3f5eb;
    --warn: #a65b08;
    --warn-soft: #fdf0df;
    --danger: #c0392e;
    --radius: 10px;
    --wrap: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 76px; }

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.55;
    color: var(--ink);
    background: var(--surface);
}

a { color: var(--brand); }
a:hover { color: var(--brand-press); }

h1, h2, h3 { margin: 0; line-height: 1.2; }
h2 { font-size: 1.75rem; font-weight: 600; letter-spacing: -0.01em; }
h3 { font-size: 1.05rem; font-weight: 600; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* ---------- top bar ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand img { height: 24px; width: auto; display: block; }
.brand-sep { width: 1px; height: 22px; background: var(--line-strong); }
.brand-label { font-weight: 600; font-size: 0.95rem; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: 0.9rem; }
.nav a:hover { color: var(--ink); }

/* ---------- buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 18px;
    border-radius: 8px;
    border: 1px solid transparent;
    font: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
}
.btn-sm { padding: 7px 14px; font-size: 0.875rem; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-press); color: #fff; }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { background: var(--sunken); color: var(--ink); }
.btn:focus-visible, a:focus-visible, summary:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 3px solid rgba(26, 86, 219, 0.35);
    outline-offset: 2px;
}

/* ---------- hero ---------- */
.hero { background: var(--canvas); border-bottom: 1px solid var(--line); padding: 72px 0 56px; }
.kicker { margin: 0 0 12px; font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; }
.hero h1 { font-size: 3rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; max-width: 820px; }
.lede { max-width: 760px; margin: 20px 0 0; font-size: 1.125rem; color: var(--ink-2); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin: 44px 0 0;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}
.stat { padding: 20px 22px; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat dt { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em; }
.stat dd { margin: 4px 0 0; font-size: 0.875rem; color: var(--ink-3); }

/* ---------- sections ---------- */
.section { padding: 72px 0; }
.section-alt { background: var(--sunken); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-lede { margin: 12px 0 0; max-width: 760px; color: var(--ink-2); }
.section h2 + .status-grid,
.section h2 + .commitments,
.section h2 + .faq { margin-top: 28px; }
.note { margin: 16px 0 0; font-size: 0.9rem; color: var(--ink-3); max-width: 860px; }
.note strong { color: var(--ink-2); }

/* ---------- chips ---------- */
.chip {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    background: var(--canvas);
    color: var(--ink-2);
    border: 1px solid var(--line);
}
.chip-ok { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.chip-warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }

/* ---------- status ---------- */
.status-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.status-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; background: var(--surface); }
.status-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.status-card p { margin: 0; color: var(--ink-2); font-size: 0.95rem; }

/* ---------- commitments ---------- */
.commitments { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 40px; }
.commitments li { padding: 14px 0 14px 34px; position: relative; border-bottom: 1px solid var(--line); color: var(--ink-2); }
.commitments li::before,
.control li::before {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--ok-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%230f8a4d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 12px no-repeat;
}
.commitments li::before { top: 17px; }
.commitments strong { color: var(--ink); }

/* ---------- controls ---------- */
.controls-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 28px; }
.control { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 22px 14px; background: var(--surface); }
.control ul { list-style: none; padding: 0; margin: 14px 0 0; }
.control li { position: relative; padding: 0 0 10px 28px; font-size: 0.925rem; color: var(--ink-2); }
.control li::before { top: 3px; }

/* ---------- tables ---------- */
.table-scroll { overflow-x: auto; margin-top: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table.grid { width: 100%; border-collapse: collapse; font-size: 0.925rem; min-width: 640px; }
table.grid th {
    text-align: left;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-3);
    font-weight: 600;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
    background: var(--sunken);
}
table.grid td { padding: 14px 18px; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--ink-2); }
table.grid tr:last-child td { border-bottom: none; }
table.grid td.k { color: var(--ink); font-weight: 600; width: 28%; }
table.grid .m { display: block; margin-top: 2px; font-weight: 400; font-size: 0.8rem; color: var(--ink-3); }

/* ---------- documents ---------- */
.docs { margin-top: 28px; display: grid; gap: 16px; }
.doc-public {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 24px;
    border-radius: var(--radius);
    background: var(--brand-soft);
    border: 1px solid #cddcfb;
}
.doc-public p { margin: 6px 0 0; color: var(--ink-2); font-size: 0.925rem; }
.doc-list { display: grid; grid-template-columns: repeat(2, 1fr); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.doc-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 18px; border-bottom: 1px solid var(--line); font-size: 0.925rem; }
.doc-row:nth-child(odd) { border-right: 1px solid var(--line); }

/* ---------- request ---------- */
.request { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.request-copy p { color: var(--ink-2); }
.request-form { display: grid; gap: 16px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.request-form label { display: grid; gap: 6px; font-size: 0.875rem; font-weight: 500; }
.request-form input[type="text"], .request-form textarea {
    font: inherit;
    font-size: 0.95rem;
    padding: 9px 12px;
    border: 1px solid var(--line-strong);
    border-radius: 8px;
    background: var(--surface);
    color: var(--ink);
    resize: vertical;
}
.request-form fieldset { border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px 14px; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; }
.request-form legend { font-size: 0.875rem; font-weight: 500; padding: 0 6px; }
.request-form label.check { display: flex; align-items: center; gap: 8px; font-weight: 400; font-size: 0.9rem; color: var(--ink-2); }
.request-form input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--brand); }
.form-error { margin: 0; color: var(--danger); font-size: 0.9rem; }
.request-form .btn { justify-self: start; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 10px; max-width: 860px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 0 20px; }
.faq summary { cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none; position: relative; padding-right: 28px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 13px; font-size: 1.3rem; font-weight: 400; color: var(--ink-3); }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { margin: 0 0 18px; color: var(--ink-2); }

/* ---------- footer ---------- */
.footer { padding: 40px 0 48px; border-top: 1px solid var(--line); font-size: 0.875rem; color: var(--ink-3); }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer-inner > div { display: grid; gap: 4px; }
.footer strong { color: var(--ink); }
.footer-links { text-align: right; }
.footer-links a { color: var(--ink-2); text-decoration: none; }
.footer-links a:hover { color: var(--ink); text-decoration: underline; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
    .controls-grid { grid-template-columns: repeat(2, 1fr); }
    .request { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 760px) {
    .wrap { padding: 0 16px; }
    .nav { display: none; }
    .topbar-inner { justify-content: space-between; }
    .hero { padding: 48px 0 40px; }
    .hero h1 { font-size: 2rem; line-height: 1.15; }
    .lede { font-size: 1rem; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .stat:nth-child(3) { border-left: none; }
    .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
    .section { padding: 52px 0; }
    h2 { font-size: 1.5rem; }
    .status-grid, .commitments, .controls-grid, .doc-list { grid-template-columns: 1fr; }
    .doc-row:nth-child(odd) { border-right: none; }
    .doc-public { flex-direction: column; align-items: flex-start; }
    .field-row, .request-form fieldset { grid-template-columns: 1fr; }
    .footer-links { text-align: left; }
}

@media (max-width: 420px) {
    .brand-sep, .brand-label { display: none; }
}