/* Archaeology Workshop (Digital Library) Certificate System — shared styles (RTL Arabic UI) */
:root {
  --green-900: #0a331b;
  --green-700: #14532d;
  --green-600: #166534;
  --green-100: #dcfce7;
  --green-50: #f0fdf4;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --card: #ffffff;
  --bg: #f3f6f4;
  --red: #dc2626;
  --red-50: #fef2f2;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, "Noto Kufi Arabic", "Cairo", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  direction: rtl;
  line-height: 1.6;
}
.container { max-width: 1080px; margin: 0 auto; padding: 16px; }

.topbar {
  background: linear-gradient(135deg, var(--green-900), var(--green-700));
  color: #fff;
  padding: calc(14px + env(safe-area-inset-top, 0px)) 0 14px;
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 17px; display: flex; align-items: center; gap: 10px; }
.brand .logo-dot { width: 34px; height: 34px; border-radius: 9px; background: #fff2; display: grid; place-items: center; font-size: 15px; }
.topbar a { color: #d1fae5; text-decoration: none; font-size: 14px; }
.topbar a:hover { color: #fff; }
.topbar-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.topbar .tb-btn {
  background: rgb(255 255 255 / 12%);
  border: 1px solid rgb(255 255 255 / 30%);
  color: #fff;
  padding: 8px 16px;
  border-radius: 9px;
  font-size: 13.5px;
  font-weight: 600;
  transition: background 0.15s;
}
.topbar .tb-btn:hover { background: rgb(255 255 255 / 24%); color: #fff; }
.topbar .tb-admin { background: rgb(255 255 255 / 90%); color: var(--green-900); }
.topbar .tb-admin:hover { background: #fff; color: var(--green-900); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin: 18px 0;
  box-shadow: 0 1px 3px rgb(16 24 40 / 6%);
}
h1.page-title { font-size: 22px; margin: 4px 0 2px; color: var(--green-900); }
p.page-sub { margin: 2px 0 0; color: var(--muted); font-size: 14px; }

.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 6px; }
.field label .req { color: var(--red); }
.field .hint { font-size: 12.5px; color: var(--muted); margin-top: 5px; }
.field input[type="text"], .field input[type="password"], .field select {
  width: 100%;
  padding: 11px 14px;
  font-size: 15.5px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s;
}
.field input:focus, .field select:focus { border-color: var(--green-600); }
.field input.ltr { direction: ltr; text-align: left; font-family: "Segoe UI", Arial, sans-serif; }
.field .error-msg { display: none; margin-top: 6px; font-size: 13.5px; color: var(--red); background: var(--red-50); border: 1px solid #fecaca; padding: 7px 11px; border-radius: 8px; }
.field .error-msg.show { display: block; }
.field.invalid input { border-color: var(--red); }

.radios { display: flex; gap: 12px; flex-wrap: wrap; }
.radios label.radio {
  display: flex; align-items: center; gap: 8px;
  border: 1.5px solid var(--line); border-radius: 10px;
  padding: 10px 18px; cursor: pointer; font-size: 15px; background: #fff;
}
.radios label.radio:has(input:checked) { border-color: var(--green-600); background: var(--green-50); }
.radios input { accent-color: var(--green-600); width: 17px; height: 17px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--green-700); color: #fff; border: none; cursor: pointer;
  padding: 12px 26px; font-size: 15.5px; font-weight: 600;
  border-radius: 10px; text-decoration: none; transition: background 0.15s;
  font-family: inherit;
}
.btn:hover { background: var(--green-900); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.secondary { background: #fff; color: var(--green-700); border: 1.5px solid var(--green-600); }
.btn.secondary:hover { background: var(--green-50); }
.btn.danger { background: #fff; color: var(--red); border: 1.5px solid #fca5a5; }
.btn.danger:hover { background: var(--red-50); }
.btn.small { padding: 7px 14px; font-size: 13.5px; border-radius: 8px; }

.actions-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }

/* certificate canvas */
.cert-wrap { margin: 14px 0; }
.cert-canvas { width: 100%; height: auto; display: block; border-radius: 6px; box-shadow: 0 3px 16px rgb(16 24 40 / 14%); }
.cert-caption { text-align: center; color: var(--muted); font-size: 13px; margin-top: 8px; }

.alert { padding: 13px 16px; border-radius: 10px; font-size: 14.5px; margin: 12px 0; }
.alert.ok { background: var(--green-50); border: 1px solid #bbf7d0; color: var(--green-900); }
.alert.err { background: var(--red-50); border: 1px solid #fecaca; color: #7f1d1d; }
.alert.info { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e3a8a; }

/* verify page */
.verify-icon { font-size: 54px; text-align: center; margin: 6px 0; }
.verify-title { text-align: center; font-size: 21px; font-weight: 800; margin: 4px 0 10px; }
.verify-title.ok { color: var(--green-700); }
.verify-title.bad { color: var(--red); }
.kv { width: 100%; border-collapse: collapse; margin: 12px 0; }
.kv td { padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 15px; }
.kv td:first-child { color: var(--muted); width: 38%; font-size: 13.5px; }
.kv td:last-child { font-weight: 600; direction: ltr; text-align: right; }

/* admin table */
.table-wrap { overflow-x: auto; }
table.list { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 760px; }
table.list th, table.list td { padding: 9px 10px; text-align: right; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.list th { background: var(--green-50); color: var(--green-900); font-size: 12.5px; position: sticky; top: 0; }
table.list td.ltr { direction: ltr; text-align: left; font-family: "Segoe UI", Arial, sans-serif; }
table.list td .row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { display: inline-block; background: var(--green-100); color: var(--green-900); border-radius: 99px; padding: 2px 10px; font-size: 12px; }
.chip.gray { background: #f3f4f6; color: #374151; }
.chip.red { background: var(--red-50); color: var(--red); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 6px; }
.stat { background: var(--green-50); border: 1px solid #bbf7d0; border-radius: 12px; padding: 14px; text-align: center; }
.stat .n { font-size: 26px; font-weight: 800; color: var(--green-900); }
.stat .t { font-size: 13px; color: var(--muted); }

.search-bar { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; }
.search-bar input { flex: 1; min-width: 200px; padding: 10px 14px; border: 1.5px solid var(--line); border-radius: 10px; font-size: 15px; font-family: inherit; }

.pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 14px; }
.pager button { padding: 8px 18px; }
.pager .info { font-size: 13.5px; color: var(--muted); }

/* modal */
.modal-backdrop { display: none; position: fixed; inset: 0; background: rgb(0 0 0 / 45%); z-index: 50; align-items: center; justify-content: center; padding: 16px; }
.modal-backdrop.show { display: flex; }
.modal { background: #fff; border-radius: 16px; max-width: 560px; width: 100%; max-height: 92vh; overflow: auto; padding: 24px; }
.modal h3 { margin: 0 0 16px; color: var(--green-900); }

.footer { text-align: center; color: var(--muted); font-size: 13px; padding: 22px 0 30px; }
.footer a { color: var(--green-700); }

/* admin settings */
.setting-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.setting-row:last-of-type { border-bottom: none; }
.setting-text b { font-size: 15px; }
.setting-text .hint { font-size: 12.5px; color: var(--muted); margin-top: 2px; }
.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 16px; }
.switch { position: relative; display: inline-block; width: 48px; height: 27px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider { position: absolute; cursor: pointer; inset: 0; background: #b9c4bf; border-radius: 99px; transition: 0.2s; }
.switch .slider:before { content: ""; position: absolute; height: 21px; width: 21px; right: 3px; top: 3px; background: #fff; border-radius: 50%; transition: 0.2s; box-shadow: 0 1px 3px rgb(0 0 0 / 25%); }
.switch input:checked + .slider { background: var(--green-600); }
.switch input:checked + .slider:before { transform: translateX(-21px); }

/* print: only the certificate image */
#print-area { display: none; }
@media print {
  body * { visibility: hidden; }
  #print-area, #print-area * { visibility: visible; }
  #print-area { display: block; position: fixed; inset: 0; }
  #print-area img { width: 100%; height: 100%; object-fit: contain; }
  @page { size: A4 landscape; margin: 0; }
}

@media (max-width: 640px) {
  .card { padding: 16px; }
  .btn { width: 100%; }
  .actions-row .btn { width: auto; flex: 1; }
  /* prevent iOS Safari auto-zoom on input focus */
  .field input[type="text"], .field input[type="password"], .field select, .search-bar input { font-size: 16px; }
  h1.page-title { font-size: 19px; }
  .kv td { padding: 9px 10px; }
}

.footer { padding-bottom: calc(30px + env(safe-area-inset-bottom, 0px)); }