/* ============================================================
   styles.css — Zephyr Rail Certification Tracker
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Funnel+Display:wght@300..800&family=Funnel+Sans:ital,wght@0,300..800;1,300..800&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Brand palette (OKLCH — perceptually uniform) */
  --brand-900: oklch(24% 0.148 15);
  --brand-700: oklch(38% 0.168 15);
  --brand-500: oklch(49% 0.168 15);
  --brand-100: oklch(95% 0.022 15);

  --amber:     oklch(68% 0.148 56);
  --amber-dim: oklch(56% 0.148 56);
  --amber-bg:  oklch(96.5% 0.028 72);

  --green:     oklch(49% 0.128 147);
  --green-bg:  oklch(96% 0.036 147);

  /* Neutrals — tinted toward hue 15 */
  --ink-950: oklch(14% 0.008 15);
  --ink-800: oklch(27% 0.007 15);
  --ink-600: oklch(46% 0.005 15);
  --ink-400: oklch(64% 0.004 15);
  --ink-200: oklch(89% 0.004 15);
  --ink-100: oklch(94% 0.003 15);
  --ink-50:  oklch(97.5% 0.002 15);

  /* Semantic aliases */
  --primary:       var(--brand-700);
  --primary-dark:  var(--brand-900);
  --primary-light: var(--brand-500);
  --secondary:     var(--amber);

  --text-primary:   var(--ink-950);
  --text-secondary: var(--ink-800);
  --text-tertiary:  var(--ink-600);
  --gray-light:     var(--ink-400);
  --border-light:   var(--ink-200);
  --surface-bg:     var(--ink-100);

  --status-valid:    var(--green);
  --status-expiring: var(--amber);
  --status-expired:  var(--brand-700);
  --status-neutral:  var(--ink-400);

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(14% 0.008 15 / 0.06), 0 1px 4px oklch(14% 0.008 15 / 0.04);
  --shadow-md: 0 4px 12px oklch(14% 0.008 15 / 0.08), 0 2px 6px oklch(14% 0.008 15 / 0.05);
  --shadow-lg: 0 16px 40px oklch(14% 0.008 15 / 0.12), 0 6px 16px oklch(14% 0.008 15 / 0.08);
  --shadow-xl: 0 32px 80px oklch(0% 0 0 / 0.35);

  /* Spacing (4pt base) */
  --sp-1:  4px;  --sp-2:  8px;  --sp-3: 12px;
  --sp-4: 16px;  --sp-5: 20px;  --sp-6: 24px;
  --sp-8: 32px;  --sp-12: 48px; --sp-16: 64px;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-xl: 14px;

  /* Sidebar — theme-aware */
  --sidebar-bg:           #F0EFEF;
  --sidebar-border:       rgba(0,0,0,0.07);
  --sidebar-text:         #4A4A4A;
  --sidebar-hover:        rgba(0,0,0,0.06);
  --sidebar-sub:          rgba(60,60,60,0.50);
  --sidebar-user-bg:      rgba(0,0,0,0.04);
  --sidebar-user-name:    #2A2A2A;
  --sidebar-user-email:   rgba(60,60,60,0.55);
  --sidebar-btn-bg:       rgba(0,0,0,0.05);
  --sidebar-btn-hover:    rgba(0,0,0,0.10);

  /* Theme surfaces */
  --bg-page:      var(--ink-100);
  --bg-surface:   oklch(99% 0.002 15);
  --bg-raised:    var(--ink-50);
  --color-border: var(--ink-200);
}

html, body { height: 100%; width: 100%; }

body {
  font-family: 'Funnel Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-page);
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.55;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── AUTH SCREEN ─────────────────────────────────────────── */
#authScreen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--brand-900);
  padding: var(--sp-5);
  position: relative;
  overflow: hidden;
}

#authScreen::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 110%, oklch(49% 0.168 15 / 0.35) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 80% -10%,  oklch(38% 0.168 15 / 0.60) 0%, transparent 50%);
  pointer-events: none;
}

.auth-card {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  padding: var(--sp-12) var(--sp-8);
  width: 100%;
  max-width: 400px;
  text-align: center;
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 1;
}

.auth-logo {
  width: auto;
  height: auto;
  background: transparent;
  box-shadow: none;
  margin-bottom: var(--sp-6);
}

.auth-logo img { display: block; margin: 0 auto; height: 48px; width: auto; }
.auth-logo svg { display: none; }

.auth-card h1 {
  font-family: 'Funnel Display', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--sp-2);
  letter-spacing: -0.4px;
  line-height: 1.2;
}

.auth-card p {
  color: var(--text-tertiary);
  font-size: 13px;
  margin-bottom: var(--sp-8);
  line-height: 1.6;
}

.btn-signin {
  width: 100%;
  padding: 13px var(--sp-4);
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px oklch(38% 0.168 15 / 0.40);
}

.btn-signin:hover {
  background: var(--primary-light);
  box-shadow: 0 4px 16px oklch(38% 0.168 15 / 0.50);
}

.btn-signin:active { background: var(--primary-dark); box-shadow: none; }

.auth-note {
  margin-top: var(--sp-4);
  font-size: 11px;
  color: var(--gray-light);
  letter-spacing: 0.2px;
}

/* ── LOADING SCREEN ──────────────────────────────────────── */
#loadingScreen {
  display: none;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  flex-direction: column;
  gap: var(--sp-5);
  background: var(--bg-page);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 2.5px solid var(--color-border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

#loadingMsg { color: var(--text-tertiary); font-size: 13px; font-weight: 500; }

/* ── APP SHELL ───────────────────────────────────────────── */
#appShell {
  display: none;
  height: 100vh;
  overflow: hidden;
  flex: 1;
}

/* ── SIDEBAR ─────────────────────────────────────────────── */
.sidebar {
  width: 232px;
  min-width: 232px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.sidebar-brand {
  padding: var(--sp-6) var(--sp-5) var(--sp-5);
  border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-brand .brand-name {
  font-family: 'Funnel Display', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--sidebar-user-name);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  line-height: 1.2;
}

.sidebar-brand .brand-sub {
  font-size: 11px;
  color: var(--sidebar-sub);
  margin-top: 3px;
  font-weight: 500;
  letter-spacing: 0.2px;
}

#sidebarNav {
  flex: 1;
  padding: var(--sp-3);
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
  overflow-x: hidden;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 10px var(--sp-3);
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--sidebar-text);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: background 0.15s, color 0.15s;
}

.nav-btn:hover { background: var(--sidebar-hover); color: var(--sidebar-user-name); }
.nav-btn.active { background: var(--primary); color: white; }

.nav-btn svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  stroke-width: 1.75;
  opacity: 0.85;
}

.nav-btn.active svg { opacity: 1; }

.sidebar-footer {
  padding: var(--sp-3) var(--sp-3) var(--sp-4);
  border-top: 1px solid var(--sidebar-border);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px var(--sp-3);
  border-radius: var(--radius-md);
  background: var(--sidebar-user-bg);
  margin-bottom: var(--sp-2);
}

.sidebar-user .name { font-size: 12px; font-weight: 600; color: var(--sidebar-user-name); }
.sidebar-user .email { font-size: 10px; color: var(--sidebar-user-email); margin-top: 1px; }

.btn-logout {
  width: 100%;
  padding: 9px var(--sp-3);
  background: var(--sidebar-btn-bg);
  border: none;
  border-radius: var(--radius-md);
  color: var(--sidebar-text);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  transition: background 0.15s, color 0.15s;
}

.btn-logout:hover {
  background: var(--sidebar-btn-hover);
  color: var(--sidebar-user-name);
}

/* ── MAIN AREA ───────────────────────────────────────────── */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

.main-header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--sp-8);
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.main-header h2 {
  font-family: 'Funnel Display', sans-serif;
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}

.header-user { display: flex; align-items: center; gap: var(--sp-3); }
.header-user .info { text-align: right; }
.header-user .name { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.header-user .email { font-size: 11px; color: var(--text-tertiary); }

.main-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-8);
  background: var(--bg-page);
}

/* ── PAGES ───────────────────────────────────────────────── */
.page { display: none; }
.page.active { display: block; }

/* ── AVATAR ──────────────────────────────────────────────── */
.avatar {
  border-radius: 50%;
  background: var(--primary);
  color: white;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.3px;
}

.avatar-sm { width: 30px; height: 30px; font-size: 11px; }
.avatar-md { width: 38px; height: 38px; font-size: 13px; }

/* ── STATS BAR ───────────────────────────────────────────── */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
}

.stat-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s;
}

.stat-card:hover { box-shadow: var(--shadow-md); }

.stat-card .num {
  font-family: 'Funnel Display', sans-serif;
  font-size: 38px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--sp-2);
  letter-spacing: -1.5px;
}

.stat-card .lbl {
  font-size: 11px;
  color: var(--text-tertiary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.55px;
}

.stat-dark  .num { color: var(--text-secondary); }
.stat-green .num { color: var(--green); }
.stat-amber .num { color: var(--amber-dim); }
.stat-red   .num { color: var(--brand-700); }

/* ── CERT GRID ───────────────────────────────────────────── */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--sp-5);
}

.cert-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.cert-card:hover { box-shadow: var(--shadow-md); }

.cert-card-valid    { border-color: var(--green); }
.cert-card-expiring { border-color: var(--amber); }
.cert-card-expired  { border-color: var(--brand-700); }

.cert-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-5) var(--sp-5) 0;
}

.cert-card-title {
  font-family: 'Funnel Display', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  line-height: 1.3;
}

.cert-card-body {
  padding: var(--sp-3) var(--sp-5) var(--sp-4);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.cert-info-row {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  color: var(--text-tertiary);
  font-size: 12px;
}

.cert-info-row svg { flex-shrink: 0; width: 14px; height: 14px; stroke-width: 1.75; }

.cert-days-label {
  font-size: 11px;
  font-weight: 700;
  margin-top: var(--sp-2);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  width: fit-content;
  letter-spacing: 0.35px;
  text-transform: uppercase;
}

.cert-days-valid    { background: var(--green-bg);  color: var(--green); }
.cert-days-expiring { background: var(--amber-bg);  color: var(--amber-dim); }
.cert-days-expired  { background: var(--brand-100); color: var(--brand-700); }
.cert-days-no-expiry { background: var(--ink-100);  color: var(--text-tertiary); }

.cert-file-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--primary);
  text-decoration: none;
  font-size: 12px;
  font-weight: 500;
  transition: color 0.15s;
}

.cert-file-link:hover { color: var(--primary-light); }

.cert-no-file {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--gray-light);
  font-size: 12px;
}

.cert-card-footer {
  padding: var(--sp-3) var(--sp-4);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--sp-2);
  background: var(--bg-raised);
}

.cert-card-footer button { flex: 1; }

/* ── TABLES ──────────────────────────────────────────────── */
.table-wrap {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--color-border);
  gap: var(--sp-3);
  flex-wrap: wrap;
  background: var(--bg-raised);
}

.table-toolbar input,
.table-toolbar select {
  padding: 7px var(--sp-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 12px;
  outline: none;
  background: var(--bg-surface);
  color: var(--text-primary);
  transition: border-color 0.15s;
}

.table-toolbar input:focus,
.table-toolbar select:focus { border-color: var(--primary); }

table { width: 100%; border-collapse: collapse; font-size: 12px; }

th {
  background: var(--bg-raised);
  padding: 10px var(--sp-4);
  text-align: left;
  font-size: 10.5px;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.55px;
  border-bottom: 1px solid var(--color-border);
}

td {
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
  color: var(--text-secondary);
}

tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--bg-raised); }
tr.row-expanded td { background: oklch(97.5% 0.005 15); }

.sub-table-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.sub-table-wrap th {
  background: oklch(96% 0.014 15);
  color: var(--text-secondary);
  border-bottom: 1px solid var(--color-border);
}

.sub-table-wrap td { font-size: 12px; }

.td-emp { display: flex; align-items: center; gap: 10px; }
.td-emp .info strong { display: block; font-size: 12px; color: var(--text-primary); font-weight: 600; }
.td-emp .info span { font-size: 11px; color: var(--text-tertiary); }

.dept-tag {
  background: var(--ink-100);
  color: var(--text-tertiary);
  padding: 3px var(--sp-2);
  border-radius: var(--radius-sm);
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.35px;
}

.chevron svg { transition: transform 0.2s; }
.chevron.open svg { transform: rotate(90deg); }

/* ── BADGES ──────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.35px;
  white-space: nowrap;
  text-transform: uppercase;
}

.badge-valid      { background: var(--green-bg);  color: var(--green); }
.badge-expiring   { background: var(--amber-bg);  color: var(--amber-dim); }
.badge-expired    { background: var(--brand-100); color: var(--brand-700); }
.badge-no-expiry  { background: var(--ink-100);   color: var(--text-tertiary); }
.badge-active     { background: var(--green-bg);  color: var(--green); }
.badge-inactive   { background: var(--ink-100);   color: var(--text-tertiary); }
.badge-admin      { background: oklch(93% 0.030 290); color: oklch(38% 0.18 290); }
.badge-compliance { background: oklch(94% 0.030 240); color: oklch(36% 0.17 240); }

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px var(--sp-4);
  border-radius: var(--radius-md);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.15s, box-shadow 0.15s;
  letter-spacing: 0.15px;
  line-height: 1.3;
}

.btn-sm { padding: 5px var(--sp-3); font-size: 11px; }

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-light); }
.btn-primary:active { background: var(--primary-dark); }

.btn-secondary {
  background: var(--ink-100);
  color: var(--text-secondary);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover { background: var(--ink-200); }

.btn-amber { background: var(--amber); color: white; }
.btn-amber:hover { background: oklch(62% 0.148 56); }

.btn-ghost-red {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--color-border);
}
.btn-ghost-red:hover { background: var(--brand-100); border-color: var(--primary); }

.btn-icon { background: transparent; padding: 5px; border-radius: var(--radius-sm); }
.btn-icon:hover { background: var(--surface-bg); }

/* ── ADMIN TABS ──────────────────────────────────────────── */
.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--sp-6);
}

.tab-btn {
  padding: var(--sp-3) var(--sp-4);
  border: none;
  background: transparent;
  font-family: 'Funnel Sans', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-tertiary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}

.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.admin-tab-panel { display: none; }

/* ── FORM / SETTINGS CARDS ───────────────────────────────── */
.settings-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--sp-8) var(--sp-6);
  margin-bottom: var(--sp-6);
}

.settings-card h3 {
  font-family: 'Funnel Display', sans-serif;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: var(--sp-5);
  color: var(--text-primary);
  letter-spacing: -0.1px;
}

.form-row {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: var(--sp-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  flex: 1;
  min-width: 160px;
}

.form-group label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 9px var(--sp-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 13px;
  outline: none;
  background: var(--bg-surface);
  color: var(--text-primary);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input::placeholder,
.form-group select::placeholder,
.form-group textarea::placeholder { color: var(--gray-light); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px oklch(38% 0.168 15 / 0.10);
}

.form-group textarea { resize: vertical; min-height: 120px; line-height: 1.55; }

.checkbox-row {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}

.checkbox-row input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }
.checkbox-row label { font-size: 13px; color: var(--text-secondary); cursor: pointer; font-weight: 500; }

/* ── DROP ZONE ───────────────────────────────────────────── */
.drop-zone {
  border: 1.5px dashed var(--ink-200);
  border-radius: var(--radius-lg);
  padding: var(--sp-8) var(--sp-6);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  background: var(--bg-raised);
}

.drop-zone:hover,
.drop-zone.drag-over { border-color: var(--primary); background: var(--brand-100); }

.drop-zone svg {
  stroke: var(--gray-light);
  margin-bottom: var(--sp-3);
  width: 32px;
  height: 32px;
  transition: stroke 0.15s;
}

.drop-zone:hover svg,
.drop-zone.drag-over svg { stroke: var(--primary); }

#dropZoneText { font-size: 13px; color: var(--text-tertiary); font-weight: 500; }
#uploadFileName { font-size: 12px; color: var(--primary); margin-top: var(--sp-2); font-weight: 600; }

/* ── MODAL ───────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: oklch(14% 0.008 15 / 0.55);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(3px);
}

.modal {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  width: 500px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) var(--sp-6) var(--sp-4);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  font-family: 'Funnel Display', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--gray-light);
  line-height: 1;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}

.modal-close:hover { color: var(--text-primary); background: var(--ink-100); }

.modal-body { padding: var(--sp-6); display: flex; flex-direction: column; gap: var(--sp-4); }

.modal-footer {
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-3);
  background: var(--bg-raised);
}

/* ── TOAST ───────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: var(--sp-8);
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--ink-950);
  color: var(--ink-50);
  padding: 11px var(--sp-6);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  z-index: 9999;
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s;
  white-space: nowrap;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
}

.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.toast-error { background: var(--primary); }

/* ── EMPTY STATE ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: var(--sp-12) var(--sp-8);
  color: var(--text-tertiary);
}

.empty-state p { font-size: 13px; line-height: 1.8; max-width: 40ch; margin: 0 auto; }

/* ── SECTION HEADER ──────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-6);
  flex-wrap: wrap;
  gap: var(--sp-3);
}

.section-header h3 {
  font-family: 'Funnel Display', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}

/* ── SCROLLBAR ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--ink-200); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-400); }

/* ── CODE ────────────────────────────────────────────────── */
code {
  background: var(--ink-100);
  color: var(--primary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-family: "SF Mono", Monaco, "Cascadia Code", Consolas, monospace;
}

/* ── UTILITIES ───────────────────────────────────────────── */
.text-muted   { color: var(--text-tertiary); }
.text-danger  { color: var(--status-expired); }
.text-success { color: var(--status-valid); }
.text-warning { color: var(--status-expiring); }

/* ══════════════════════════════════════════════════════════
   DARK THEME
   ══════════════════════════════════════════════════════════ */

[data-theme="dark"] {
  --brand-900: oklch(18% 0.120 15);
  --brand-700: oklch(52% 0.168 15);
  --brand-500: oklch(62% 0.168 15);
  --brand-100: oklch(22% 0.060 15);

  --amber:     oklch(72% 0.148 56);
  --amber-dim: oklch(72% 0.148 56);
  --amber-bg:  oklch(20% 0.040 56);

  --green:     oklch(65% 0.128 147);
  --green-bg:  oklch(20% 0.040 147);

  --ink-950: oklch(92% 0.004 15);
  --ink-800: oklch(78% 0.004 15);
  --ink-600: oklch(58% 0.004 15);
  --ink-400: oklch(42% 0.004 15);
  --ink-200: oklch(28% 0.005 15);
  --ink-100: oklch(22% 0.006 15);
  --ink-50:  oklch(19% 0.006 15);

  --sidebar-bg:         #1F1F23;
  --sidebar-border:     rgba(255,255,255,0.08);
  --sidebar-text:       rgba(255,255,255,0.80);
  --sidebar-hover:      rgba(255,255,255,0.07);
  --sidebar-sub:        rgba(255,255,255,0.45);
  --sidebar-user-bg:    rgba(255,255,255,0.05);
  --sidebar-user-name:  rgba(255,255,255,0.92);
  --sidebar-user-email: rgba(255,255,255,0.50);
  --sidebar-btn-bg:     rgba(255,255,255,0.07);
  --sidebar-btn-hover:  rgba(255,255,255,0.13);

  --bg-page:      oklch(13% 0.007 15);
  --bg-surface:   oklch(17% 0.008 15);
  --bg-raised:    oklch(21% 0.007 15);
  --color-border: oklch(28% 0.005 15);

  --shadow-sm: 0 1px 2px oklch(0% 0 0 / 0.35), 0 1px 4px oklch(0% 0 0 / 0.25);
  --shadow-md: 0 4px 12px oklch(0% 0 0 / 0.45), 0 2px 6px oklch(0% 0 0 / 0.35);
  --shadow-lg: 0 16px 40px oklch(0% 0 0 / 0.60), 0 6px 16px oklch(0% 0 0 / 0.45);
}

[data-theme="dark"] body          { background: var(--bg-page); }
[data-theme="dark"] #loadingScreen { background: var(--bg-page); }
[data-theme="dark"] .auth-card    { background: var(--bg-surface); }
[data-theme="dark"] tr.row-expanded td { background: oklch(20% 0.018 15); }
[data-theme="dark"] .sub-table-wrap th { background: oklch(22% 0.030 15); color: oklch(72% 0.080 56); }
[data-theme="dark"] .spinner { border-color: var(--color-border); border-top-color: var(--primary); }
[data-theme="dark"] .badge-admin { background: oklch(22% 0.04 290); color: oklch(72% 0.14 290); }
[data-theme="dark"] .badge-compliance { background: oklch(20% 0.04 240); color: oklch(70% 0.14 240); }
[data-theme="dark"] .btn-secondary { background: var(--bg-raised); color: var(--ink-800); }
[data-theme="dark"] .btn-ghost-red:hover { background: oklch(22% 0.06 15); }
[data-theme="dark"] .btn-icon:hover { background: var(--bg-raised); }
[data-theme="dark"] code { background: var(--bg-raised); }
[data-theme="dark"] .toast { background: var(--bg-raised); color: var(--ink-950); border: 1px solid var(--color-border); }
[data-theme="dark"] .toast.toast-error { background: var(--primary); color: white; border-color: transparent; }
[data-theme="dark"] .drop-zone { border-color: var(--color-border); }
[data-theme="dark"] .drop-zone:hover,
[data-theme="dark"] .drop-zone.drag-over { background: oklch(20% 0.050 15); border-color: var(--primary); }
[data-theme="dark"] .tab-bar { border-bottom-color: var(--color-border); }
[data-theme="dark"] .dept-tag { background: var(--bg-raised); }
[data-theme="dark"] .table-toolbar input,
[data-theme="dark"] .table-toolbar select { background: var(--bg-surface); color: var(--text-primary); border-color: var(--color-border); }
[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea { background: var(--bg-raised); color: var(--text-primary); border-color: var(--color-border); }

/* ── Theme toggle ────────────────────────────────────────── */
.btn-theme-toggle {
  width: 100%;
  margin-top: var(--sp-2);
  padding: 9px var(--sp-3);
  border: none;
  border-radius: var(--radius-md);
  font-family: 'Funnel Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  transition: background 0.15s, color 0.15s;
  background: var(--sidebar-btn-bg);
  color: var(--sidebar-text);
}

.btn-theme-toggle:hover { background: var(--sidebar-btn-hover); color: var(--sidebar-user-name); }

/* ── Quill editor ────────────────────────────────────────── */
.quill-editor-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 4px;
}

.quill-editor-wrap .ql-toolbar {
  border: none;
  border-bottom: 1px solid var(--color-border);
  background: var(--bg-raised);
  padding: 6px 10px;
}

.quill-editor-wrap .ql-container {
  border: none;
  font-family: 'Funnel Sans', sans-serif;
  font-size: 13px;
}

.quill-editor-wrap .ql-editor {
  min-height: 260px;
  max-height: 460px;
  overflow-y: auto;
  padding: var(--sp-3) var(--sp-4);
  background: var(--bg-surface);
  color: var(--text-secondary);
  line-height: 1.6;
}

[data-theme="dark"] .quill-editor-wrap              { border-color: var(--color-border); }
[data-theme="dark"] .quill-editor-wrap .ql-toolbar  { background: var(--bg-raised); border-bottom-color: var(--color-border); }
[data-theme="dark"] .quill-editor-wrap .ql-editor   { background: var(--bg-surface); color: var(--ink-800); }
[data-theme="dark"] .quill-editor-wrap .ql-stroke   { stroke: var(--ink-600); }
[data-theme="dark"] .quill-editor-wrap .ql-fill     { fill: var(--ink-600); }
[data-theme="dark"] .quill-editor-wrap .ql-picker-label { color: var(--ink-600); }

/* ── Request link ────────────────────────────────────────── */
.request-link {
  background: none;
  border: none;
  padding: 0;
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  opacity: 0.75;
  transition: opacity 0.15s;
}

.request-link:hover { opacity: 1; text-decoration: underline; }
[data-theme="dark"] .request-link { color: oklch(70% 0.10 15); }

/* ── Variable chips ──────────────────────────────────────── */
.var-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: var(--sp-3); }

.var-chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 11px;
  background: oklch(93% 0.030 290);
  color: oklch(38% 0.18 290);
  border: 1px solid oklch(82% 0.07 290);
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  font-family: "SF Mono", Monaco, Consolas, monospace;
  cursor: pointer;
  transition: background 0.12s, transform 0.08s;
  user-select: none;
  box-shadow: inset 0 -1px 0 oklch(72% 0.10 290);
}

.var-chip:hover  { background: oklch(88% 0.05 290); }
.var-chip:active { background: oklch(84% 0.06 290); transform: translateY(1px); }

[data-theme="dark"] .var-chip       { background: oklch(22% 0.04 290); color: oklch(72% 0.14 290); border-color: oklch(30% 0.06 290); box-shadow: inset 0 -1px 0 oklch(28% 0.06 290); }
[data-theme="dark"] .var-chip:hover { background: oklch(26% 0.05 290); }
[data-theme="dark"] .var-chip:active { background: oklch(18% 0.03 290); transform: translateY(1px); }

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1200px) {
  .sidebar { width: 212px; min-width: 212px; }
  .main-content { padding: var(--sp-6); }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  #appShell { flex-direction: column; }

  .sidebar {
    width: 100%;
    min-width: 100%;
    height: auto;
    flex-direction: row;
    padding: var(--sp-3);
    overflow-x: auto;
  }

  .sidebar-brand {
    padding: var(--sp-3) var(--sp-4);
    border-bottom: none;
    border-right: 1px solid var(--sidebar-border);
    min-width: fit-content;
  }

  #sidebarNav {
    flex-direction: row;
    flex: 1;
    padding: 0 var(--sp-3);
    overflow-x: auto;
    overflow-y: hidden;
  }

  .sidebar-footer {
    border-top: none;
    border-left: 1px solid var(--sidebar-border);
    padding-left: var(--sp-3);
  }

  .main-header {
    flex-direction: column;
    height: auto;
    gap: var(--sp-3);
    padding: var(--sp-4);
  }

  .main-content { padding: var(--sp-4); }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-3);
    margin-bottom: var(--sp-4);
  }

  .stat-card { padding: var(--sp-4); }
  .stat-card .num { font-size: 28px; }

  .cert-grid { grid-template-columns: 1fr; gap: var(--sp-3); }
  .section-header { flex-direction: column; align-items: flex-start; }

  .table-wrap {
    border-radius: var(--radius-md);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .table-wrap table { min-width: 560px; }
  .table-toolbar { flex-direction: column; align-items: stretch; }
  .table-toolbar input, .table-toolbar select { width: 100%; }

  .tab-bar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    scrollbar-width: none;
  }

  .tab-bar::-webkit-scrollbar { display: none; }
  .tab-btn { flex-shrink: 0; white-space: nowrap; }

  .modal { width: calc(100vw - 24px); max-width: 100%; margin: 12px; }
  .btn, .btn-primary, .btn-secondary { min-height: 44px; }
  .auth-card { padding: var(--sp-8) var(--sp-6); border-radius: var(--radius-lg); }
  .var-chips { gap: var(--sp-2); }
  .var-chip { padding: 7px 13px; font-size: 12px; min-height: 36px; }
}