/* ============================================================
   Estate Certificate DMS — Prototype stylesheet
   Status colour system (never colour alone — badges carry icon+text):
     green  = complete & valid      amber = renewal required soon
     red    = expired/missing/rejected/overdue
     blue   = submitted/under review grey = not applicable
   ============================================================ */
:root {
  --green: #1a7f37;   --green-bg: #e6f4ea;
  --amber: #9a6700;   --amber-bg: #fff4d6;
  --red:   #b3261e;   --red-bg:   #fdecea;
  --blue:  #0b5cad;   --blue-bg:  #e8f1fb;
  --grey:  #5f6368;   --grey-bg:  #eceef1;
  --ink: #1f2328; --muted: #5f6368; --line: #d8dce1;
  --bg: #f4f6f8; --card: #ffffff; --accent: #0b5cad;
  --radius: 8px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.45;
}

/* ---------- Header / nav ---------- */
.app-header {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  background: #102a43; color: #fff; padding: .8rem 1.2rem; flex-wrap: wrap;
}
.brand { display: flex; gap: .7rem; align-items: center; }
.brand-mark { font-size: 1.6rem; }
.app-header h1 { font-size: 1.15rem; font-weight: 600; }
.subtitle { font-size: .8rem; color: #b9c7d6; }
.proto-tag {
  font-size: .65rem; background: #ffb02025; color: #ffc24b; border: 1px solid #ffc24b66;
  padding: .1rem .4rem; border-radius: 4px; vertical-align: middle; text-transform: uppercase; letter-spacing: .04em;
}
.header-right { display: flex; align-items: center; gap: .6rem; font-size: .85rem; }
.header-right select { padding: .3rem .5rem; border-radius: 6px; border: 1px solid var(--line); }
.last-refresh { color: #b9c7d6; font-size: .78rem; }

.app-nav { display: flex; gap: .25rem; background: #fff; border-bottom: 1px solid var(--line); padding: 0 1rem; flex-wrap: wrap; }
.nav-btn {
  background: none; border: none; padding: .75rem 1rem; font-size: .92rem; cursor: pointer;
  border-bottom: 3px solid transparent; color: var(--muted);
}
.nav-btn.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
.nav-btn:hover { color: var(--accent); }

main { padding: 1rem 1.2rem 3rem; max-width: 1400px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }

/* ---------- Filters ---------- */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: .6rem; align-items: flex-end;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: .8rem; margin-bottom: 1rem;
}
.filter-item { display: flex; flex-direction: column; gap: .2rem; min-width: 130px; flex: 1 1 130px; }
.filter-item label { font-size: .72rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
.filter-item select { padding: .4rem .5rem; border: 1px solid var(--line); border-radius: 6px; font-size: .88rem; background: #fff; }

.breadcrumb { font-size: .85rem; color: var(--muted); margin-bottom: .8rem; }
.breadcrumb button { background: none; border: none; color: var(--accent); cursor: pointer; font-size: .85rem; text-decoration: underline; }

/* ---------- Summary cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: .7rem; margin-bottom: 1.1rem; }
.card {
  background: var(--card); border: 1px solid var(--line); border-left: 5px solid var(--grey);
  border-radius: var(--radius); padding: .7rem .9rem;
}
.card .k { font-size: .75rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
.card .v { font-size: 1.55rem; font-weight: 700; margin-top: .15rem; }
.card .s { font-size: .75rem; color: var(--muted); }
.card.c-green { border-left-color: var(--green); } .card.c-green .v { color: var(--green); }
.card.c-amber { border-left-color: var(--amber); } .card.c-amber .v { color: var(--amber); }
.card.c-red   { border-left-color: var(--red); }   .card.c-red .v   { color: var(--red); }
.card.c-blue  { border-left-color: var(--blue); }  .card.c-blue .v  { color: var(--blue); }

/* ---------- Status badges: icon + text + colour (accessibility) ---------- */
.badge {
  display: inline-flex; align-items: center; gap: .3rem; white-space: nowrap;
  font-size: .75rem; font-weight: 600; padding: .12rem .5rem; border-radius: 999px; border: 1px solid transparent;
}
.badge::before { font-size: .8em; }
.b-green { background: var(--green-bg); color: var(--green); border-color: #1a7f3740; }
.b-green::before { content: "✔"; }
.b-amber { background: var(--amber-bg); color: var(--amber); border-color: #9a670040; }
.b-amber::before { content: "⚠"; }
.b-red   { background: var(--red-bg);   color: var(--red);   border-color: #b3261e40; }
.b-red::before { content: "✖"; }
.b-blue  { background: var(--blue-bg);  color: var(--blue);  border-color: #0b5cad40; }
.b-blue::before { content: "●"; }
.b-grey  { background: var(--grey-bg);  color: var(--grey);  border-color: #5f636840; }
.b-grey::before { content: "—"; }

/* ---------- Charts ---------- */
.charts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); gap: .9rem; }
.chart-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: .9rem; }
.chart-card h3 { font-size: .95rem; margin-bottom: .6rem; }
.chart-wrap { position: relative; height: 260px; }
.gauge-wrap { display: flex; flex-direction: column; align-items: center; justify-content: center; }
.gauge-label { font-size: 1.1rem; font-weight: 700; margin-top: -3.2rem; }
.gauge-label small { display: block; font-size: .75rem; color: var(--muted); font-weight: 400; text-align: center; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: .85rem; }
th, td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { background: #f0f3f6; font-size: .75rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); cursor: pointer; user-select: none; }
tbody tr:hover { background: #f7fafc; }
.empty-state { padding: 2rem; text-align: center; color: var(--muted); }
.register-toolbar { display: flex; gap: .6rem; align-items: center; margin-bottom: .7rem; flex-wrap: wrap; }
.register-toolbar input { flex: 1 1 260px; padding: .5rem .7rem; border: 1px solid var(--line); border-radius: 6px; font-size: .9rem; }
.pagination { display: flex; gap: .35rem; margin-top: .7rem; flex-wrap: wrap; }
.pagination button { border: 1px solid var(--line); background: #fff; border-radius: 6px; padding: .3rem .65rem; cursor: pointer; }
.pagination button.cur { background: var(--accent); color: #fff; border-color: var(--accent); }
.row-actions button { margin-right: .25rem; }

/* ---------- Buttons ---------- */
.btn {
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  padding: .45rem .9rem; border-radius: 6px; font-size: .85rem; cursor: pointer;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: #0a4f94; color: #fff; }
.btn-ghost { background: transparent; }
.btn-sm { padding: .2rem .5rem; font-size: .78rem; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }

/* ---------- Upload form ---------- */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1rem; }
fieldset { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; }
legend { font-weight: 700; font-size: .9rem; padding: 0 .4rem; }
.field { margin-bottom: .75rem; display: flex; flex-direction: column; gap: .25rem; }
.field label { font-size: .82rem; font-weight: 600; }
.field input, .field select, .field textarea {
  padding: .45rem .55rem; border: 1px solid var(--line); border-radius: 6px; font-size: .9rem; font-family: inherit;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid #0b5cad55; border-color: var(--accent); }
.field.invalid input, .field.invalid select { border-color: var(--red); }
.err { color: var(--red); font-size: .78rem; min-height: 1em; }
.hint { color: var(--muted); font-size: .75rem; }
.drop-zone {
  border: 2px dashed var(--line); border-radius: var(--radius); padding: 1.6rem; text-align: center;
  cursor: pointer; transition: border-color .15s, background .15s;
}
.drop-zone:hover, .drop-zone.dragover { border-color: var(--accent); background: var(--blue-bg); }
.file-info { margin-top: .6rem; font-size: .85rem; background: var(--grey-bg); padding: .5rem .7rem; border-radius: 6px; }
.preview-panel { background: var(--blue-bg); border: 1px solid #0b5cad33; border-radius: var(--radius); padding: 1rem; margin-top: 1rem; }
.preview-panel dl { display: grid; grid-template-columns: 200px 1fr; gap: .3rem .8rem; font-size: .88rem; }
.preview-panel dt { font-weight: 600; color: var(--muted); }
.form-actions { display: flex; gap: .6rem; margin-top: 1rem; }
.form-msg { margin-top: .8rem; font-size: .9rem; font-weight: 600; }
.form-msg.ok { color: var(--green); }
.form-msg.bad { color: var(--red); }

/* ---------- Alerts & renewals ---------- */
.alert-list { display: flex; flex-direction: column; gap: .5rem; margin: .8rem 0 1.4rem; }
.alert-item {
  display: flex; gap: .7rem; align-items: center; background: var(--card);
  border: 1px solid var(--line); border-left: 5px solid var(--grey); border-radius: var(--radius); padding: .6rem .9rem; font-size: .88rem;
}
.alert-item.a-red { border-left-color: var(--red); }
.alert-item.a-amber { border-left-color: var(--amber); }
.alert-item.a-blue { border-left-color: var(--blue); }
.renewal-board { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: .7rem; margin-top: .8rem; }
.renewal-col { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: .6rem; }
.renewal-col h4 { font-size: .8rem; text-transform: uppercase; color: var(--muted); margin-bottom: .5rem; }
.renewal-chip { background: var(--grey-bg); border-radius: 6px; padding: .4rem .55rem; font-size: .8rem; margin-bottom: .4rem; }

/* ---------- Inline detail panel (expanding register row) ---------- */
.detail-row td { background: #f7fafc; border-bottom: 2px solid var(--accent); white-space: normal; }
.detail-panel { padding: .6rem .4rem; }
.detail-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .5rem; }
.detail-panel dl { display: grid; grid-template-columns: 190px 1fr; gap: .3rem .8rem; font-size: .87rem; margin: .5rem 0; }
.detail-panel dt { font-weight: 600; color: var(--muted); }
.detail-panel h4 { margin: .7rem 0 .3rem; font-size: .9rem; }
.detail-panel ul { padding-left: 1.2rem; font-size: .84rem; }
@media (max-width: 900px) { .detail-panel dl { grid-template-columns: 1fr; } }
.toast {
  position: fixed; bottom: 1.2rem; right: 1.2rem; background: #102a43; color: #fff;
  padding: .7rem 1.1rem; border-radius: 8px; font-size: .88rem; z-index: 60; box-shadow: 0 4px 14px #0004;
}
.muted { color: var(--muted); font-size: .85rem; }

/* ---------- Responsive (tablet) ---------- */
@media (max-width: 900px) {
  .charts-grid { grid-template-columns: 1fr; }
  .app-header { flex-direction: column; align-items: flex-start; }
  .preview-panel dl, .modal-box dl { grid-template-columns: 1fr; }
}