:root {
  --navy-900: #14213D;
  --navy-800: #1B2C4F;
  --navy-700: #2A3E68;
  --paper: #F1EFE8;
  --paper-raised: #FBFAF6;
  --ink: #1E1E1E;
  --ink-soft: #5B5A54;
  --line: #D9D5C8;
  --seal: #8C2F26;
  --seal-soft: #F4E4E0;
  --gold: #A9822F;
  --success: #2F6F4E;
  --success-soft: #E3ECE5;
  --warn: #9C6B14;
  --warn-soft: #F3E7CE;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 15px;
  line-height: 1.55;
}
a { color: inherit; }
code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.92em;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 3px;
}
.muted { color: var(--ink-soft); }

/* ---------- App shell ---------- */
.app { display: flex; min-height: 100vh; }
.app-focus { display: flex; align-items: flex-start; justify-content: center; background: var(--paper); }
.main-focus { width: 100%; max-width: 640px; padding: 48px 20px 60px; }

.sidebar {
  width: 250px;
  flex-shrink: 0;
  background: var(--navy-900);
  color: #EFE9DA;
  display: flex;
  flex-direction: column;
}
.brand { padding: 28px 24px 20px; border-bottom: 1px solid rgba(255,255,255,0.12); display: flex; gap: 12px; align-items: flex-start; }
.brand .mark {
  width: 34px; height: 34px; flex-shrink: 0;
  border: 1.5px solid var(--gold); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Source Serif 4', serif; font-size: 15px; font-weight: 600; color: var(--gold);
}
.brand h1 { font-family: 'Source Serif 4', serif; font-weight: 600; font-size: 17px; margin: 0 0 2px; line-height: 1.3; }
.brand p { margin: 0; font-size: 12px; color: #A9B0C4; }

.navlist { padding: 10px 0; flex: 1; display: flex; flex-direction: column; }
.navlist a {
  display: flex; align-items: center; gap: 11px;
  padding: 12px 24px; font-size: 14px; color: #C7CCDB;
  text-decoration: none; border-left: 2px solid transparent;
}
.navlist a svg { width: 16px; height: 16px; flex-shrink: 0; opacity: 0.85; }
.navlist a:hover { background: rgba(255,255,255,0.05); color: #fff; }
.navlist a.active { background: rgba(255,255,255,0.07); color: #fff; border-left-color: var(--gold); font-weight: 500; }

.sidebar-foot {
  padding: 16px 24px 22px; border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 11.5px; color: #7E86A0; line-height: 1.5;
}

main { flex: 1; min-width: 0; padding: 40px 44px 60px; max-width: 960px; }

/* ---------- Headings / sections ---------- */
.page-title { font-family: 'Source Serif 4', serif; font-weight: 600; font-size: 27px; margin: 0 0 6px; }
.page-sub { color: var(--ink-soft); margin: 0 0 32px; font-size: 14px; }
.block { margin-bottom: 40px; }
.block-title {
  font-family: 'Source Serif 4', serif; font-size: 16px; font-weight: 600;
  margin: 0 0 14px; display: flex; align-items: center; justify-content: space-between;
}
.btn-text-link { font-size: 12.5px; font-weight: 500; color: var(--navy-700); text-decoration: none; }
.btn-text-link:hover { color: var(--seal); }

/* ---------- Hero (kept for pages that still use it) ---------- */
.hero { margin-bottom: 28px; }
.hero h1 { font-family: 'Source Serif 4', serif; font-size: 26px; margin: 0 0 8px; }
.hero p { color: var(--ink-soft); max-width: 640px; margin: 0; }

/* ---------- Stat row ---------- */
.stats, .stat-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  margin-bottom: 36px;
}
.stat-card, .stat { padding: 18px 20px; border-right: 1px solid var(--line); }
.stats .stat-card:last-child, .stat-row .stat:last-child { border-right: none; }
.stat-number, .num { display: block; font-family: 'Source Serif 4', serif; font-size: 30px; font-weight: 600; line-height: 1; }
.stat-label, .label { display: block; font-size: 12px; color: var(--ink-soft); margin-top: 6px; }

/* ---------- Cards ---------- */
.card {
  background: var(--paper-raised); border: 1px solid var(--line);
  padding: 26px 28px; margin-bottom: 28px;
}
.card-narrow { max-width: 640px; }
.card h2 { font-family: 'Source Serif 4', serif; font-size: 20px; margin: 0 0 6px; }

/* ---------- Ledger-style rows (dashboard) ---------- */
.ledger { border-top: 1px solid var(--line); }
.ledger-row {
  display: grid; grid-template-columns: 1fr auto auto; gap: 16px; align-items: center;
  padding: 14px 4px; border-bottom: 1px solid var(--line);
}
.ledger-row .title { font-weight: 500; }
.ledger-row .meta { font-size: 12.5px; color: var(--ink-soft); margin-top: 2px; }
.empty { padding: 32px 20px; text-align: center; color: var(--ink-soft); border: 1px dashed var(--line); }

/* ---------- Table (index.php) ---------- */
.table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.table th, .table td { text-align: left; padding: 11px 10px; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.table th { font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-soft); font-weight: 600; }
.table .actions { white-space: nowrap; font-size: 13px; }
.table .actions a { text-decoration: none; color: var(--navy-700); }
.table .actions a:hover { color: var(--seal); }

/* ---------- Badges ---------- */
.badge { display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px; font-weight: 500; padding: 4px 9px; border-radius: 3px; white-space: nowrap; }
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-warning { background: var(--warn-soft); color: var(--warn); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; cursor: pointer; font-family: 'IBM Plex Sans', sans-serif;
  font-size: 13.5px; font-weight: 500; padding: 10px 18px; border-radius: 2px;
  text-align: center; text-decoration: none; border: none;
}
.btn-primary { background: var(--navy-900); color: #fff; }
.btn-primary:hover { background: var(--navy-700); }
.btn-secondary { background: var(--paper); border: 1px solid var(--line); color: var(--ink); }
.btn-secondary:hover { border-color: var(--ink-soft); }
.btn-link { background: none; border: none; color: var(--navy-700); text-decoration: underline; padding: 10px 4px; }
.btn-link:hover { color: var(--seal); }
.btn-text { color: var(--ink-soft); font-size: 12.5px; padding: 6px 8px; text-decoration: none; }
.btn-text:hover { color: var(--seal); }

/* ---------- Forms ---------- */
.form { display: flex; flex-direction: column; gap: 6px; margin-top: 16px; }
.form label { font-size: 12.5px; font-weight: 500; color: var(--ink-soft); margin-top: 10px; }
.form input[type="text"], .form input[type="file"], .form select {
  font-family: inherit; font-size: 14px; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); padding: 10px 12px; border-radius: 2px;
}
.form button { margin-top: 20px; align-self: flex-start; }
.info-box {
  background: var(--paper); border: 1px solid var(--line); border-left: 3px solid var(--gold);
  padding: 14px 16px; margin-top: 18px; font-size: 13.5px; color: var(--ink-soft);
}
.info-box ul { margin: 8px 0 0; padding-left: 20px; }

/* ---------- Alerts ---------- */
.alert { padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; border: 1px solid; }
.alert-success { background: var(--success-soft); border-color: var(--success); color: var(--success); }
.alert-error { background: var(--seal-soft); border-color: var(--seal); color: var(--seal); }

/* ---------- Certificate ---------- */
.certificate { }
.certificate-head h2 { font-family: 'Source Serif 4', serif; font-size: 21px; margin: 0 0 4px; }
.cert-table { width: 100%; border-collapse: collapse; margin: 18px 0; }
.cert-table th, .cert-table td { text-align: left; padding: 10px 4px; border-bottom: 1px solid var(--line); font-size: 13.5px; vertical-align: top; }
.cert-table th { width: 220px; color: var(--ink-soft); font-weight: 500; }
.hash-cell { font-family: 'IBM Plex Mono', monospace; font-size: 12px; word-break: break-all; }
.barcode-box { text-align: center; padding: 20px 0 8px; border-top: 1px dashed var(--line); margin-top: 8px; }
.barcode-box img { width: 176px; height: 176px; background: #fff; border: 1px solid var(--line); padding: 12px; }
.cert-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
@media print {
  .sidebar, .no-print { display: none !important; }
  main { padding: 0; max-width: none; }
}

/* ---------- Direct-scan validation result (verify.php) ---------- */
.scan-result { text-align: center; padding: 20px 0; }
.scan-icon {
  width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 34px; border: 2.5px solid;
}
.scan-icon-success { color: var(--success); border-color: var(--success); background: var(--success-soft); }
.scan-icon-error { color: var(--seal); border-color: var(--seal); background: var(--seal-soft); }
.scan-title { font-family: 'Source Serif 4', serif; font-size: 24px; margin: 0 0 8px; }
.scan-title-success { color: var(--success); }
.scan-title-error { color: var(--seal); }
.scan-subtitle { color: var(--ink-soft); max-width: 460px; margin: 0 auto 24px; }
.scan-table { text-align: left; }
.scan-actions { margin-top: 24px; }

/* ---------- QR camera scanner ---------- */
#scanner-container { margin-top: 14px; border: 1px solid var(--line); background: #000; padding: 8px; }
#scanner-viewport video { width: 100%; display: block; }

/* ---------- Mobile ---------- */
@media (max-width: 820px) {
  .app { flex-direction: column; }
  .sidebar { width: 100%; flex-direction: row; align-items: center; padding: 0 12px; }
  .brand { border-bottom: none; padding: 12px 8px 12px 4px; }
  .brand .mark { width: 28px; height: 28px; font-size: 12px; }
  .brand p { display: none; }
  .brand h1 { font-size: 14px; }
  .navlist { flex-direction: row; overflow-x: auto; padding: 0; }
  .navlist a { flex-direction: column; gap: 3px; padding: 10px 14px; border-left: none; border-bottom: 2px solid transparent; white-space: nowrap; }
  .navlist a.active { border-left: none; border-bottom-color: var(--gold); }
  .sidebar-foot { display: none; }
  main { padding: 24px 18px 50px; max-width: 100%; }
  .stats, .stat-row { grid-template-columns: 1fr 1fr; }
  .cert-table th { width: 140px; }
  .ledger-row { grid-template-columns: 1fr; }
}