/* ============================================================
   WTC Training Portal — Shared Design System
   ============================================================ */

/* ----------------------------------------------------------
   1. Custom Properties
   ---------------------------------------------------------- */
:root {
  /* Brand palette */
  --navy:    #00263E;
  --teal:    #0E8C84;
  --gold:    #A8842E;
  --ink:     #0C1722;
  --paper:   #F6F3EC;
  --muted:   #6A7280;

  /* Extended */
  --ink-2:       #1E2C3A;
  --paper-2:     #FBF8F1;
  --teal-2:      #0A6A62;
  --line:        #D8D1C1;
  --line-soft:   #E7E0CF;
  --green:       #1F7A4D;
  --green-soft:  #E7F2EB;
  --red:         #C0392B;
  --red-soft:    #FBE7E4;

  /* Radii */
  --r-sm:   6px;
  --r-md:   10px;
  --r-lg:   16px;
  --r-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(12,23,34,.04), 0 2px 8px rgba(12,23,34,.06);
  --shadow-md: 0 1px 2px rgba(12,23,34,.04), 0 10px 30px rgba(12,23,34,.10);
  --shadow-lg: 0 4px 6px rgba(12,23,34,.05), 0 24px 64px rgba(12,23,34,.14);

  /* Transitions */
  --ease: cubic-bezier(.2,.8,.2,1);
}

/* ----------------------------------------------------------
   2. Reset + Base
   ---------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

img, svg { display: block; max-width: 100%; }

/* Typography helpers */
.display { font-family: 'Fraunces', Georgia, serif; }
.mono    { font-family: 'JetBrains Mono', 'SF Mono', monospace; }

/* Navbar body offset */
body.has-navbar { padding-top: 62px; }

/* ----------------------------------------------------------
   3. Navbar
   ---------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: 62px;
  background: var(--navy);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 16px;
  box-shadow: 0 1px 0 rgba(255,255,255,.07), 0 4px 24px rgba(0,0,0,.22);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
  text-decoration: none;
}

.navbar-mark {
  width: 36px;
  height: 36px;
  background: var(--teal);
  border-radius: var(--r-sm);
  display: grid;
  place-items: center;
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 17px;
  color: #fff;
  flex-shrink: 0;
  position: relative;
}
.navbar-mark::after {
  content: '';
  position: absolute;
  bottom: -3px; right: -3px;
  width: 8px; height: 8px;
  background: var(--gold);
  border-radius: 50%;
}

.navbar-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.navbar-text strong {
  font-family: 'Fraunces', serif;
  font-size: 14.5px;
  font-weight: 500;
  color: #fff;
  letter-spacing: .01em;
}
.navbar-text span {
  font-size: 10px;
  color: rgba(255,255,255,.5);
  text-transform: uppercase;
  letter-spacing: .14em;
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.navbar-user {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.2;
}
.navbar-user strong {
  font-size: 13px;
  color: #fff;
  font-weight: 500;
}
.navbar-user span {
  font-size: 10.5px;
  color: rgba(255,255,255,.45);
  text-transform: uppercase;
  letter-spacing: .1em;
}

.navbar-divider {
  width: 1px;
  height: 24px;
  background: rgba(255,255,255,.15);
}

/* ----------------------------------------------------------
   4. Buttons
   ---------------------------------------------------------- */
.btn-primary,
.btn-secondary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: var(--r-pill);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .04em;
  cursor: pointer;
  transition: all .15s var(--ease);
  white-space: nowrap;
  border: none;
  line-height: 1;
}

.btn-primary {
  background: var(--teal);
  color: #fff;
}
.btn-primary:hover  { background: var(--teal-2); }
.btn-primary:active { background: #085e57; }

.btn-secondary {
  background: var(--navy);
  color: #fff;
}
.btn-secondary:hover  { background: #003050; }
.btn-secondary:active { background: #001e30; }

.btn-ghost {
  background: transparent;
  color: var(--ink-2);
  border: 1px solid var(--line);
}
.btn-ghost:hover  { background: var(--paper-2); border-color: var(--muted); }
.btn-ghost:active { background: var(--line-soft); }

/* Navbar variant (dark bg context) */
.btn-ghost-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 15px;
  border-radius: var(--r-pill);
  font-family: 'DM Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .05em;
  cursor: pointer;
  background: transparent;
  color: rgba(255,255,255,.75);
  border: 1px solid rgba(255,255,255,.2);
  transition: all .15s;
}
.btn-ghost-nav:hover { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.35); }

.btn-danger {
  background: var(--red);
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 15px;
  border-radius: var(--r-pill);
  font-family: 'DM Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background .15s;
}
.btn-danger:hover { background: #a93224; }

button:disabled, .btn-primary:disabled {
  opacity: .45;
  cursor: not-allowed;
}

/* ----------------------------------------------------------
   5. Card
   ---------------------------------------------------------- */
.card {
  background: #fff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  padding: 28px;
  transition: box-shadow .2s var(--ease);
}
.card:hover { box-shadow: var(--shadow-lg); }

/* ----------------------------------------------------------
   6. Track Card
   ---------------------------------------------------------- */
.track-card {
  background: #fff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--track-accent, var(--teal));
  padding: 24px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: box-shadow .2s var(--ease), transform .2s var(--ease);
}
.track-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.track-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.track-card-badges {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 5px;
  flex-shrink: 0;
}

.track-card-title {
  font-family: 'Fraunces', serif;
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -.01em;
}

.track-card-level {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-top: 3px;
}

.track-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.track-card-modules {
  font-size: 12px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}

.track-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 2px;
}

/* ----------------------------------------------------------
   7. Badge
   ---------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  line-height: 1;
}

.badge-div-emid { background: rgba(0,38,62,.12);  color: #00263E; }
.badge-div-sti  { background: rgba(61,31,110,.12); color: #3D1F6E; }
.badge-div-ebd  { background: rgba(27,58,75,.12);  color: #1B3A4B; }
.badge-div-ent  { background: rgba(14,124,123,.12); color: #0A5C5B; }
.badge-div-hrn  { background: rgba(140,90,43,.12);  color: #6B4420; }

.badge-status-none     { background: var(--line-soft); color: var(--muted); }
.badge-status-progress { background: rgba(14,140,132,.12); color: var(--teal-2); }
.badge-status-complete { background: var(--green-soft); color: var(--green); }

.badge-level {
  background: rgba(168,132,46,.1);
  color: var(--gold);
}

/* ----------------------------------------------------------
   8. Progress Bar
   ---------------------------------------------------------- */
.progress-bar-wrap {
  width: 100%;
  height: 5px;
  background: var(--line-soft);
  border-radius: var(--r-pill);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--r-pill);
  background: var(--track-accent, var(--teal));
  transition: width .5s var(--ease);
  min-width: 0;
}

/* ----------------------------------------------------------
   9. Stat Grid
   ---------------------------------------------------------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 14px;
}

.stat-tile {
  background: rgba(255,255,255,.7);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 16px 18px;
}

.stat-tile-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--muted);
  margin-bottom: 6px;
}

.stat-tile-value {
  font-family: 'Fraunces', serif;
  font-size: 28px;
  line-height: 1;
  color: var(--ink);
}

.stat-tile-sub {
  font-size: 11.5px;
  color: var(--muted);
  margin-top: 4px;
}

/* ----------------------------------------------------------
   10. Table
   ---------------------------------------------------------- */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

thead th {
  background: var(--navy);
  color: rgba(255,255,255,.85);
  font-size: 10.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 11px 14px;
  text-align: left;
  white-space: nowrap;
}

tbody tr {
  border-top: 1px solid var(--line-soft);
  transition: background .1s;
}
tbody tr:hover { background: var(--paper-2); }

tbody td {
  padding: 11px 14px;
  color: var(--ink-2);
  vertical-align: middle;
}

tbody td.td-name { font-weight: 600; color: var(--ink); }
tbody td.td-muted { color: var(--muted); font-size: 12.5px; }
tbody td.td-mono { font-family: 'JetBrains Mono', monospace; font-size: 12px; }
tbody td.td-check { color: var(--green); font-weight: 700; }

/* ----------------------------------------------------------
   11. Form Elements
   ---------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: .08em;
}

.form-input,
.form-select {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  font-family: 'DM Sans', sans-serif;
  font-size: 14.5px;
  color: var(--ink);
  background: #fff;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  appearance: none;
  -webkit-appearance: none;
}
.form-input:focus,
.form-select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(14,140,132,.12);
}
.form-input::placeholder { color: var(--muted); }

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236A7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}

/* ----------------------------------------------------------
   12. Modal
   ---------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(12,23,34,.5);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-overlay.open { display: flex; }

.modal {
  background: #fff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modal-in .25s var(--ease);
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(16px) scale(.97); }
  to   { opacity: 1; transform: none; }
}

.modal-header {
  padding: 24px 24px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.modal-title {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-weight: 500;
  color: var(--ink);
}

.modal-close-btn {
  background: var(--paper-2);
  border: 1px solid var(--line);
  color: var(--muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 18px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  line-height: 1;
  transition: background .12s;
}
.modal-close-btn:hover { background: var(--line-soft); color: var(--ink); }

.modal-body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-footer {
  padding: 0 24px 24px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ----------------------------------------------------------
   13. Alerts
   ---------------------------------------------------------- */
.alert-success,
.alert-error {
  padding: 11px 15px;
  border-radius: var(--r-md);
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 9px;
}

.alert-success {
  background: var(--green-soft);
  color: var(--green);
  border: 1px solid rgba(31,122,77,.25);
}

.alert-error {
  background: var(--red-soft);
  color: var(--red);
  border: 1px solid rgba(192,57,43,.25);
}

/* ----------------------------------------------------------
   14. Empty State
   ---------------------------------------------------------- */
.empty-state {
  text-align: center;
  padding: 60px 30px;
  color: var(--muted);
}

.empty-state-icon {
  font-size: 40px;
  margin-bottom: 14px;
  opacity: .45;
}

.empty-state-title {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  color: var(--ink-2);
  margin-bottom: 8px;
}

.empty-state-body {
  font-size: 14px;
  max-width: 36ch;
  margin: 0 auto;
  line-height: 1.6;
}

/* ----------------------------------------------------------
   15. Spinner
   ---------------------------------------------------------- */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  vertical-align: middle;
}

.spinner-dark {
  border-color: rgba(12,23,34,.15);
  border-top-color: var(--navy);
}

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

/* ----------------------------------------------------------
   16. Tab Strip
   ---------------------------------------------------------- */
.tab-strip {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--line);
  margin-bottom: 24px;
}

.tab-btn {
  background: none;
  border: none;
  padding: 12px 20px;
  font-family: 'DM Sans', sans-serif;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  position: relative;
  transition: color .15s;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active {
  color: var(--navy);
  font-weight: 600;
}
.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 2px;
  background: var(--teal);
  border-radius: 2px 2px 0 0;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ----------------------------------------------------------
   17. Page Layout Helpers
   ---------------------------------------------------------- */
.page-wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 28px 80px;
}

.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-family: 'Fraunces', serif;
  font-size: 32px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -.02em;
  line-height: 1.1;
}

.page-subtitle {
  font-size: 15px;
  color: var(--muted);
  margin-top: 6px;
}

.section-title-sm {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 16px;
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

/* ----------------------------------------------------------
   18. Track Grid (responsive)
   ---------------------------------------------------------- */
.track-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .track-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .track-grid { grid-template-columns: 1fr; }
}

/* ----------------------------------------------------------
   19. Welcome Band
   ---------------------------------------------------------- */
.welcome-band {
  background: var(--navy);
  color: #fff;
  padding: 32px 28px;
  margin-bottom: 0;
}

.welcome-band-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.welcome-greeting {
  font-family: 'Fraunces', serif;
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -.01em;
  margin-bottom: 4px;
}

.welcome-sub {
  font-size: 13px;
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
  letter-spacing: .12em;
}

/* ----------------------------------------------------------
   20. Utility classes
   ---------------------------------------------------------- */
.mt-4  { margin-top: 4px; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.text-muted { color: var(--muted); }
.text-sm    { font-size: 12.5px; }
.text-green { color: var(--green); }
.text-red   { color: var(--red); }
.fw-600     { font-weight: 600; }
.hidden     { display: none !important; }

/* ----------------------------------------------------------
   21. Dark Mode
   ---------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
  :root {
    --paper:     #0F1820;
    --paper-2:   #162230;
    --ink:       #ECE9E0;
    --ink-2:     #C8C0B4;
    --line:      #2A3848;
    --line-soft: #1E2E3E;
    --muted:     #7A8899;
  }

  .card, .track-card, .modal, .stat-tile {
    background: #162230;
  }

  thead th { background: #0A1520; }

  tbody tr:hover { background: #1A2A3A; }

  .form-input, .form-select {
    background: #0F1820;
    color: var(--ink);
    border-color: var(--line);
  }

  .welcome-band { background: #080F16; }
}

/* ----------------------------------------------------------
   22. Responsive navbar
   ---------------------------------------------------------- */
@media (max-width: 600px) {
  .navbar { padding: 0 16px; }
  .navbar-text span { display: none; }
  .navbar-user span { display: none; }
  .page-wrap { padding: 24px 16px 60px; }
  .welcome-band { padding: 24px 16px; }
}