/* USWDS-aligned federal styling for the TTB Label Verification System. */
:root {
  --navy: #162e51;        /* primary-darker  */
  --navy-2: #1b3a64;
  --primary: #005ea2;     /* primary         */
  --primary-dark: #1a4480;/* primary-dark    */
  --gold: #d6b85a;
  --ink: #1b1b1b;         /* base-darkest    */
  --muted: #565c65;       /* base            */
  --line: #dfe1e2;
  --bg-gray: #f0f0f0;     /* gray-5          */
  --success: #00a91c;
  --success-bg: #ecf3ec;
  --success-ink: #216e1f;
  --error: #d54309;
  --error-bg: #f4e3db;
  --error-ink: #b50909;
  --radius: 4px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: #fff;
}
.container { max-width: 1024px; margin: 0 auto; padding: 0 20px; }

/* ---------- Government banner ---------- */
.gov-banner { background: var(--bg-gray); font-size: 0.8rem; border-bottom: 1px solid #dcdee0; }
.gov-banner__inner { display: flex; align-items: center; gap: 8px; min-height: 34px; }
.gov-banner__flag { font-size: 0.95rem; }
.gov-banner__text { color: #1b1b1b; }
.gov-banner__btn {
  background: none; border: none; color: var(--primary-dark); cursor: pointer;
  font-size: 0.8rem; padding: 4px 6px; text-decoration: underline; display: inline-flex; align-items: center; gap: 4px;
}
.gov-banner__btn .caret { transition: transform .15s; }
.gov-banner__btn[aria-expanded="true"] .caret { transform: rotate(180deg); }
.gov-banner__content { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; padding-top: 12px; padding-bottom: 16px; }
.gov-guidance { display: flex; gap: 10px; font-size: 0.82rem; }
.gov-guidance__icon { font-size: 1.4rem; line-height: 1; }
.gov-guidance p { margin: 0; }

/* ---------- Header ---------- */
.site-header { background: #fff; border-bottom: 1px solid var(--line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 14px; padding-bottom: 14px; }
.site-id { display: flex; align-items: center; gap: 14px; text-decoration: none; color: var(--ink); }
.seal { width: 58px; height: 58px; flex-shrink: 0; }
.site-id__text { display: flex; flex-direction: column; line-height: 1.2; }
.site-id__dept { font-size: 0.78rem; color: var(--muted); }
.site-id__name { font-size: 1.18rem; font-weight: 700; color: var(--navy); }
.site-header__meta { display: flex; align-items: center; gap: 8px; font-size: 0.82rem; color: var(--muted); white-space: nowrap; }
.status-dot { width: 10px; height: 10px; border-radius: 50%; background: #aab; display: inline-block; }
.status-dot.ok { background: var(--success); }
.status-dot.down { background: var(--error); }

/* ---------- Primary nav (tabs) ---------- */
.primary-nav { background: var(--navy); }
.primary-nav__inner { display: flex; gap: 0; }
.navtab {
  background: none; border: none; color: #d9e1ec; cursor: pointer;
  font-size: 0.93rem; font-weight: 600; letter-spacing: 0.02em; text-transform: uppercase;
  padding: 16px 22px; border-bottom: 4px solid transparent;
}
.navtab:hover { background: var(--navy-2); color: #fff; }
.navtab.active { color: #fff; border-bottom-color: var(--gold); background: var(--navy-2); }
.badge {
  display: inline-block; min-width: 20px; padding: 0 6px; margin-left: 6px;
  background: var(--gold); color: var(--navy); border-radius: 999px;
  font-size: 0.72rem; font-weight: 700; line-height: 18px; text-align: center;
}

/* ---------- Hero ---------- */
.hero { background: linear-gradient(180deg, var(--navy) 0%, #1d3a64 100%); color: #fff; padding: 30px 0 34px; }
.hero h1 { margin: 0 0 8px; font-size: 1.9rem; }
.hero p { margin: 0; max-width: 760px; color: #d9e1ec; font-size: 1.02rem; }

/* ---------- Layout ---------- */
.main { padding: 30px 20px 60px; }
.card { background: #fff; border: 1px solid var(--line); border-top: 4px solid var(--navy); border-radius: var(--radius); padding: 22px 24px; margin-bottom: 22px; box-shadow: 0 1px 2px rgba(0,0,0,.04); }
.card h2 { margin: 0 0 14px; font-size: 1.22rem; color: var(--navy); display: flex; align-items: center; gap: 10px; }
.step { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 0.95rem; font-weight: 700; }
.optional { font-size: 0.8rem; font-weight: 400; color: var(--muted); }
.hint { color: var(--muted); font-size: 0.92rem; margin: 0 0 14px; }
.hint code { background: var(--bg-gray); padding: 2px 6px; border-radius: 3px; }

/* ---------- Dropzone ---------- */
.dropzone {
  border: 2px dashed #a9aeb1; border-radius: var(--radius); background: #f8f9fa;
  min-height: 168px; display: flex; align-items: center; justify-content: center; cursor: pointer; padding: 16px;
  transition: background .15s, border-color .15s;
}
.dropzone:hover, .dropzone:focus, .dropzone.drag { background: #eef4fb; border-color: var(--primary); outline: none; }
.dz-inner { text-align: center; color: var(--muted); }
.dz-icon { font-size: 2.6rem; }
.dz-text { font-size: 1.1rem; font-weight: 600; color: var(--ink); }
.dz-text span { font-weight: 400; color: var(--muted); font-size: 0.95rem; }
#preview-one { max-height: 320px; max-width: 100%; border-radius: var(--radius); box-shadow: 0 2px 10px rgba(0,0,0,.18); }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid label { display: flex; flex-direction: column; font-weight: 600; gap: 6px; font-size: 0.95rem; }
.form-grid input, textarea {
  font-size: 1rem; padding: 11px 12px; border: 1px solid #565c65; border-radius: var(--radius); font-weight: 400; font-family: inherit;
}
.form-grid input:focus, textarea:focus { outline: 3px solid #2491ff; outline-offset: 0; border-color: var(--primary); }
textarea { width: 100%; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.88rem; }

/* ---------- Buttons (USWDS) ---------- */
.btn {
  font-family: inherit; font-size: 1.02rem; font-weight: 700; border-radius: var(--radius);
  padding: 13px 22px; cursor: pointer; border: 2px solid transparent; line-height: 1;
}
.btn--primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn--primary:hover:not(:disabled) { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn--primary:disabled { background: #c9c9c9; border-color: #c9c9c9; cursor: not-allowed; }
.btn--outline { background: #fff; color: var(--primary); border-color: var(--primary); }
.btn--outline:hover { background: #eef4fb; }
.btn--block { display: block; width: 100%; font-size: 1.2rem; padding: 16px; margin-bottom: 22px; }
.btn--sm { font-size: 0.85rem; padding: 8px 14px; }
.btn--success { background: var(--success-ink); border-color: var(--success-ink); color: #fff; }
.btn--success:hover { filter: brightness(0.92); }

/* ---------- Result / USWDS alerts ---------- */
.result { margin-bottom: 26px; }
.alert { border-left: 8px solid; padding: 18px 22px; border-radius: var(--radius); margin-bottom: 18px; display: flex; align-items: center; gap: 16px; }
.alert .mark { font-size: 2rem; line-height: 1; }
.alert__title { font-size: 1.4rem; font-weight: 700; }
.alert .ms { margin-left: auto; font-size: 0.85rem; font-weight: 600; color: var(--muted); }
.alert--pass { background: var(--success-bg); border-color: var(--success); color: var(--success-ink); }
.alert--fail { background: var(--error-bg); border-color: var(--error); color: var(--error-ink); }
.alert--err  { background: #faf3d1; border-color: #ffbe2e; color: #8a6d00; }

table.fields { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
table.fields th, table.fields td { text-align: left; padding: 13px 15px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.fields th { background: var(--navy); color: #fff; font-size: 0.78rem; text-transform: uppercase; letter-spacing: .04em; }
table.fields tr:last-child td { border-bottom: none; }
table.fields tbody tr:nth-child(even) { background: #f8f9fa; }
.status-pill { font-weight: 700; padding: 3px 11px; border-radius: 999px; font-size: 0.82rem; white-space: nowrap; display: inline-block; }
.s-match { background: var(--success-bg); color: var(--success-ink); }
.s-mismatch, .s-missing { background: var(--error-bg); color: var(--error-ink); }
.s-not_checked { background: var(--bg-gray); color: var(--muted); }
.field-name { font-weight: 700; text-transform: capitalize; }
.note { color: var(--muted); font-size: 0.9rem; display: block; margin-top: 4px; }

/* ---------- Batch ---------- */
.summary { display: flex; gap: 14px; margin-bottom: 18px; flex-wrap: wrap; }
.chip { flex: 1; min-width: 110px; text-align: center; border-radius: var(--radius); padding: 16px; font-weight: 700; border: 1px solid var(--line); border-top: 4px solid var(--muted); background: #fff; }
.chip .n { display: block; font-size: 1.9rem; }
.chip.pass { border-top-color: var(--success); color: var(--success-ink); }
.chip.fail { border-top-color: var(--error); color: var(--error-ink); }
.chip.total { border-top-color: var(--navy); color: var(--navy); }
.brow { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; }
.brow summary { display: flex; align-items: center; gap: 14px; padding: 14px 16px; cursor: pointer; font-weight: 700; list-style: none; }
.brow summary::-webkit-details-marker { display: none; }
.brow summary::after { content: "▸"; margin-left: auto; color: var(--muted); }
.brow[open] summary::after { content: "▾"; }
.brow .bstatus { padding: 3px 12px; border-radius: 999px; font-size: 0.82rem; }
.brow .bname { word-break: break-all; font-weight: 600; }
.brow .bdetail { padding: 0 16px 16px; }

/* ---------- Save-to-history ---------- */
.save-wrap { margin: 6px 0 30px; }
.save-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; background: #f8f9fa; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.save-row label { font-weight: 600; font-size: 0.95rem; }
.save-row input { flex: 1; min-width: 220px; padding: 10px 12px; border: 1px solid #565c65; border-radius: var(--radius); font-family: inherit; font-size: 1rem; }
.saved-toast { background: var(--success-bg); border-left: 6px solid var(--success); color: var(--success-ink); padding: 12px 16px; border-radius: var(--radius); font-weight: 600; }

/* ---------- History ---------- */
.history-head { display: flex; align-items: center; justify-content: space-between; }
.hist-item { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; }
.hist-item__head { display: flex; align-items: center; gap: 14px; padding: 14px 16px; flex-wrap: wrap; }
.hist-item__name { font-weight: 700; font-size: 1.05rem; color: var(--navy); }
.hist-item__time { font-size: 0.82rem; color: var(--muted); }
.hist-item__counts { display: flex; gap: 8px; margin-left: auto; }
.mini-chip { font-size: 0.78rem; font-weight: 700; padding: 2px 10px; border-radius: 999px; }
.mini-chip.pass { background: var(--success-bg); color: var(--success-ink); }
.mini-chip.fail { background: var(--error-bg); color: var(--error-ink); }
.hist-actions { display: flex; gap: 8px; }
.linkbtn { background: none; border: none; color: var(--primary); cursor: pointer; font: inherit; font-size: 0.88rem; text-decoration: underline; padding: 4px; }
.linkbtn.danger { color: var(--error-ink); }
.hist-item__body { padding: 0 16px 16px; border-top: 1px solid var(--line); }
.empty { text-align: center; color: var(--muted); padding: 30px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: #d9e1ec; margin-top: 20px; }
.site-footer__inner { display: flex; justify-content: space-between; gap: 20px; padding: 26px 20px; flex-wrap: wrap; }
.footer-id { font-weight: 700; color: #fff; }
.footer-sub { font-size: 0.85rem; color: #aab7c8; }
.footer-meta { font-size: 0.8rem; color: #aab7c8; text-align: right; display: flex; flex-direction: column; gap: 4px; }

@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .gov-banner__content { grid-template-columns: 1fr; }
  .site-id__name { font-size: 1rem; }
  .navtab { padding: 14px 14px; font-size: 0.82rem; }
  .footer-meta { text-align: left; }
}