/* Mobile-first base styles. Plain CSS, no build step.
   Write rules for small screens first; add @media (min-width: ...) blocks for larger ones. */

:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1c1c1a;
  --muted: #6b6b66;
  --border: #deddd8;
  --accent: #1f5fbf;
  --danger: #b42318;
  --warn: #b54708;
  --ok: #067647;
  --radius: 8px;
  --gap: 16px;
  font-size: 16px; /* >= 16px stops iOS zooming into form fields */
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

a { color: var(--accent); }

/* Test copy banner (SPEC §15.45) */
.instance-banner { background: var(--warn); color: #fff; text-align: center; font-weight: 600; padding: 6px var(--gap); }

.topbar {
  display: flex;
  align-items: center;
  gap: var(--gap);
  padding: 12px var(--gap);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand { font-weight: 600; text-decoration: none; color: var(--text); }

.container { padding: var(--gap); max-width: 1100px; margin: 0 auto; }

.muted { color: var(--muted); }

h1 { font-size: 1.4rem; margin: 0 0 12px; }

/* Large touch targets for use on phones at the packing bench. */
button, .button, input, select, textarea {
  font: inherit;
  min-height: 44px;
}

h2 { font-size: 1.15rem; margin: 24px 0 8px; }
code { font-family: ui-monospace, Consolas, monospace; font-size: 0.9em; }
.nowrap { white-space: nowrap; }

/* Top bar navigation */
.nav { display: flex; align-items: center; gap: 12px; margin-left: auto; flex-wrap: wrap; }
.subnav { display: flex; gap: 6px 14px; flex-wrap: wrap; margin-bottom: var(--gap); font-size: 0.95rem; }

/* Forms */
input, select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
}
input[type="checkbox"] { width: auto; min-height: 0; margin: 0 8px 0 0; }
label { display: block; font-weight: 500; }
label small { display: block; font-weight: 400; }
label.check { display: flex; align-items: flex-start; flex-wrap: wrap; font-weight: 400; padding: 6px 0; }
label.check input { margin-top: 5px; }
label.check small { flex-basis: 100%; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 12px; margin: 0; }
legend { font-weight: 500; padding: 0 4px; }
.stack > * + * { margin-top: 12px; }
.actions { display: flex; align-items: center; gap: 16px; }
form.inline { display: inline; }

button, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
}
button.primary, .button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.link { border: 0; background: none; padding: 0; min-height: 0; color: var(--accent); text-decoration: underline; }
.danger { color: var(--danger) !important; }

/* Layout pieces */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--gap);
  margin-bottom: var(--gap);
}
.narrow { max-width: 420px; margin: 24px auto; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.link-list { padding-left: 18px; }
.link-list li { margin: 6px 0; }
.badge {
  display: inline-block;
  padding: 1px 8px;
  margin: 1px 0;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  white-space: nowrap;
}

/* Messages */
.alert { padding: 10px 12px; border-radius: var(--radius); border: 1px solid; margin: 0 0 12px; }
.alert-error { color: var(--danger); border-color: var(--danger); background: #fef3f2; }
.alert-ok { color: var(--ok); border-color: var(--ok); background: #ecfdf3; }
.alert-warn { color: var(--warn); border-color: var(--warn); background: #fffaeb; }

/* Tables: scroll sideways on phones instead of squashing columns */
.table-scroll { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; background: var(--surface); margin: 12px 0; }
.table th, .table td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.table th { font-weight: 600; font-size: 0.9rem; color: var(--muted); }

/* Shipments list */
.filters { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: flex-end; margin: 12px 0; }
.filters label { flex: 1 1 140px; }
.filters label.grow { flex: 3 1 260px; }
.ship-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.ship-link {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 8px;
  padding: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
}
.ship-link:hover { border-color: var(--accent); }
.ship-ref { font-weight: 600; }
.ship-name, .ship-link .muted { grid-column: 1 / -1; }

/* Status badges */
.status-open { border-color: var(--accent); color: var(--accent); }
.status-signed_1 { border-color: var(--warn); color: var(--warn); }
.status-frozen { border-color: var(--ok); color: var(--ok); }
.status-cancelled, .status-archived { color: var(--muted); }
.status-ready { border-color: var(--ok); color: #fff; background: var(--ok); }
.ship-due { grid-column: 1 / -1; font-size: 0.9rem; color: var(--warn); }
.banner { margin: 8px 0 4px; }
.banner a { font-weight: 600; }
.signoff-form { margin-top: 12px; }
.voided { margin-top: 10px; }
.archive-box { margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--border); }
.archive-box h3 { font-size: 1rem; margin: 0 0 6px; }
.steps li { margin: 8px 0; }
.voided ul { margin: 6px 0 0; padding-left: 18px; }

/* Shipment page */
.tabs { display: flex; gap: 16px; border-bottom: 1px solid var(--border); margin-bottom: var(--gap); }
.tabs a { padding: 8px 0; text-decoration: none; color: var(--muted); }
.tabs a[aria-current="page"] { color: var(--text); border-bottom: 2px solid var(--accent); font-weight: 600; }
.card h2 { margin-top: 0; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; }
.missing { margin: 0; padding-left: 20px; }
.timeline { list-style: none; padding: 0; }
.timeline li { padding: 10px 0; border-bottom: 1px solid var(--border); }
/* Documents and photos */
.slot { padding: 12px 0; border-top: 1px solid var(--border); }
.slot:first-of-type { border-top: 0; }
.slot-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.slot h3 { font-size: 1rem; margin: 0; }
.slot h4 { font-size: 0.95rem; margin: 12px 0 6px; }
.badge-ok { border-color: var(--ok); color: var(--ok); }
.badge-warn { border-color: var(--warn); color: var(--warn); }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.thumb { margin: 0; }
.thumb img { width: 100%; height: 120px; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--border); background: var(--bg); }
.thumb figcaption { display: grid; gap: 2px; font-size: 0.85rem; }
.file-name { overflow-wrap: anywhere; }
.file-list { list-style: none; padding: 0; margin: 8px 0; }
.file-list li { padding: 6px 0; display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: baseline; overflow-wrap: anywhere; }
.inline-form { display: flex; gap: 6px; }
.inline-form input { min-height: 36px; padding: 4px 8px; }
.inline-form button { min-height: 36px; padding: 4px 10px; }
.upload { margin-top: 10px; padding: 10px; border: 1px dashed var(--border); border-radius: var(--radius); }
.upload input[type="file"] { border: 0; padding: 4px 0; background: none; }

.danger-zone summary { cursor: pointer; color: var(--danger); font-weight: 500; }
.danger-button { background: var(--danger); border-color: var(--danger); color: #fff; }

@media (max-width: 600px) {
  /* Simple tables wrap on narrow screens; the audit table scrolls (see .table-scroll). */
  .table { font-size: 0.95rem; }
}

@media (min-width: 768px) {
  h1 { font-size: 1.75rem; }
}