/* =============================================================
   CoeAdvisor — themed with the Mitchell Design System
   Dual mode ready (.mds-dark), default is light.
   ============================================================= */

:root {
  /* ── Type families ─────────────────────────────────────── */
  --mds-serif:  'Crimson Pro', 'Charter', 'Iowan Old Style', Cambria, 'Times New Roman', serif;
  --mds-sans:   'Inter', 'Avenir Next', 'Helvetica Neue', system-ui, sans-serif;
  --mds-mono:   'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

  /* ── Neutral ink scale ─────────────────────────────────── */
  --ink-0:   #ffffff;
  --ink-50:  #f7f7f5;
  --ink-100: #ececea;
  --ink-200: #d8d8d4;
  --ink-300: #b8b8b2;
  --ink-400: #8b8b85;
  --ink-500: #5f5f59;
  --ink-600: #3f3f3a;
  --ink-700: #27272a;
  --ink-800: #18181b;
  --ink-900: #0a0a0a;

  /* ── Accents ───────────────────────────────────────────── */
  --accent-crimson: #a12d2f;
  --accent-crimson-dark: #7e2324;
  --accent-ochre:   #c28a2b;
  --accent-moss:    #2f6b3a;
  --accent-indigo:  #2a4a7f;

  /* ── Semantic aliases ──────────────────────────────────── */
  --bg:         var(--ink-50);
  --surface:    var(--ink-0);
  --fg:         var(--ink-900);
  --fg-muted:   var(--ink-500);
  --fg-soft:    var(--ink-400);
  --rule:       var(--ink-100);
  --rule-strong: var(--ink-200);
  --accent:     var(--accent-crimson);

  /* ── Status ────────────────────────────────────────────── */
  --status-done:    #2f6b3a;
  --status-todo:    #b91c1c;
  --status-partial: #c28a2b;
  --status-manual:  #2a4a7f;

  /* ── Schedule block colors ─────────────────────────────── */
  --sched-c0: #2a4a7f; --sched-c1: #2f6b3a; --sched-c2: #92400e; --sched-c3: #9d174d;
  --sched-c4: #3730a3; --sched-c5: #6b21a8; --sched-c6: #115e59; --sched-c7: #991b1b;
}

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

body {
  font-family: var(--mds-sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

header {
  background: var(--accent-crimson);
  color: var(--ink-0);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
header h1 {
  font-family: var(--mds-serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; }
.toolbar button, .file-label {
  background: var(--ink-0);
  color: var(--accent-crimson);
  border: none;
  padding: 6px 16px;
  border-radius: 4px;
  font-family: var(--mds-sans);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 120ms ease;
}
.toolbar button:hover, .file-label:hover {
  background: var(--ink-900);
  color: var(--ink-0);
}
.toolbar button:disabled { opacity: .5; cursor: default; }

main {
  display: grid;
  grid-template-columns: minmax(340px, 1fr) minmax(400px, 2fr);
  gap: 16px;
  padding: 16px;
  max-width: 1400px;
  margin: 0 auto;
  min-height: calc(100vh - 56px);
}
@media (max-width: 800px) {
  main { grid-template-columns: 1fr; }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 20px;
  overflow-y: auto;
  max-height: calc(100vh - 88px);
}

h2 {
  font-family: var(--mds-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 6px;
  margin: 18px 0 10px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
h2:first-child { margin-top: 0; }

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}
.form-row label {
  font-family: var(--mds-sans);
  font-size: 12px;
  color: var(--fg-muted);
}
.form-row input[type="text"],
.form-row select {
  display: block;
  width: 100%;
  margin-top: 2px;
  padding: 5px 8px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-family: var(--mds-sans);
  font-size: 13px;
  color: var(--fg);
  background: var(--surface);
}
.form-row select { min-width: 140px; }
.programs-grid { display: flex; flex-direction: column; gap: 8px; }
.prog-group-header { display: flex; align-items: center; gap: 6px; margin-bottom: 4px; }
.prog-group-label { font-size: 12px; color: var(--fg-muted); font-weight: 600; }
.prog-add-btn { width: 20px; height: 20px; border-radius: 50%; border: 1px solid var(--rule-strong); background: var(--ink-50); color: var(--ink-600); font-size: 14px; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; padding: 0; transition: background 120ms ease; }
.prog-add-btn:hover { background: var(--ink-200); }
.prog-slots { display: flex; flex-direction: column; gap: 4px; }
.prog-slots label { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.prog-slots select { flex: 1; min-width: 0; }
.prog-remove-btn { width: 20px; height: 20px; border-radius: 50%; border: 1px solid var(--rule); background: #fef2f2; color: var(--status-todo); font-size: 14px; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; padding: 0; flex-shrink: 0; transition: background 120ms ease; }
.prog-remove-btn:hover { background: #fecaca; }
.conc-select-wrapper { width: 100%; margin-top: 2px; }
.conc-select-wrapper select { width: 100%; font-size: 12px; padding: 3px 6px; border: 1px solid var(--rule-strong); border-radius: 4px; color: var(--ink-600); }

.pw-label { font-size: 12px; color: var(--fg-muted); margin-right: 4px; line-height: 2; }
.pw-check { font-size: 13px; display: inline-flex; align-items: center; gap: 3px; }

.small-btn {
  background: var(--ink-50);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 2px 10px;
  font-family: var(--mds-sans);
  font-size: 12px;
  cursor: pointer;
  color: var(--fg-muted);
  transition: all 120ms ease;
}
.small-btn:hover { background: var(--ink-200); color: var(--fg); }

.small-btn.plan-section-btn { margin-left: auto; }

/* ── Results ─────────────────────────────────────────────── */

#results-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--fg-soft);
  text-align: center;
  font-family: var(--mds-serif);
  font-size: 15px;
}

.summary-bar {
  background: var(--ink-50);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 12px;
  border: 1px solid var(--rule);
}

.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1.5px solid var(--rule);
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.tab {
  background: none;
  border: none;
  padding: 6px 16px;
  font-family: var(--mds-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1.5px;
  transition: color 120ms ease;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab:hover { color: var(--fg); }

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

.req-row, .item-row, .sec-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 0;
  font-size: 13px;
}
.req-icon { flex-shrink: 0; width: 18px; text-align: center; }
.req-label { font-weight: 600; }
.req-courses { color: var(--fg-muted); font-size: 12px; }

.done .req-icon, .done { color: var(--status-done); }
.todo .req-icon, .todo { color: var(--status-todo); }
.partial .req-icon, .partial { color: var(--status-partial); }
.manual .req-icon, .manual { color: var(--status-manual); }
.muted .req-icon, .muted { color: var(--ink-300); }

.item-row { padding-left: 20px; font-size: 12px; }

/* ── Program cards ───────────────────────────────────────── */

.prog-card {
  border: 1px solid var(--rule);
  border-radius: 6px;
  margin-bottom: 8px;
  overflow: hidden;
}
.prog-header {
  padding: 8px 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--ink-50);
  user-select: none;
  transition: background 120ms ease;
}
.prog-header:hover { background: var(--ink-100); }
.prog-header .arrow { transition: transform .15s; font-size: 10px; }
.prog-card.open .prog-header .arrow { transform: rotate(90deg); }
.prog-pct { margin-left: auto; font-size: 12px; font-weight: 400; color: var(--fg-muted); }
.prog-body { display: none; padding: 8px 12px; }
.prog-card.open .prog-body { display: block; }
.conc-section { border-top: 1px solid var(--rule); margin-top: 8px; padding-top: 8px; }
.conc-header { font-size: 13px; font-weight: 600; color: var(--ink-600); margin-bottom: 4px; }
.conc-pct { font-weight: 400; font-size: 12px; color: var(--fg-muted); }
.conc-note { font-size: 12px; color: var(--fg-muted); font-style: italic; margin-bottom: 4px; }
.conc-hint { font-size: 12px; color: var(--fg-soft); font-style: italic; margin-top: 8px; padding-top: 6px; border-top: 1px dashed var(--rule); }

.sec-row { padding: 3px 0; }
.sec-label { font-weight: 600; font-size: 13px; }
.sec-msg { font-size: 12px; color: var(--fg-muted); }

.empty { color: var(--fg-soft); font-style: italic; padding: 20px; text-align: center; }

/* ── Plan tab ────────────────────────────────────────────── */

.plan-toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 8px;
}

.plan-semester {
  border: 1px solid var(--rule);
  border-radius: 6px;
  margin-bottom: 6px;
  overflow: hidden;
}
.plan-sem-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--ink-50);
  cursor: pointer;
  user-select: none;
  transition: background 120ms ease;
}
.plan-sem-header:hover { background: var(--ink-100); }
.plan-sem-header .arrow { transition: transform .15s; font-size: 10px; flex-shrink: 0; }
.plan-semester.open .plan-sem-header .arrow { transform: rotate(90deg); }
.plan-sem-label {
  font-weight: 600;
  font-size: 13px;
  flex: 1;
}
.plan-sem-summary {
  font-size: 11px;
  color: var(--fg-muted);
  margin-right: 4px;
}
.plan-sem-body { display: none; padding: 8px 10px; }
.plan-semester.open .plan-sem-body { display: block; }

.plan-entry-area { margin-bottom: 6px; }
.plan-entry-area .sem-courses {
  width: 100%;
  font-family: var(--mds-mono);
  font-size: 13px;
  padding: 6px 8px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  resize: vertical;
  color: var(--fg);
  background: var(--surface);
}
.plan-entry-area .sem-courses:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: transparent;
}

.plan-hints {
  background: #fef2f2;
  border-radius: 4px;
  padding: 4px 8px;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--status-todo);
  line-height: 1.6;
}
.plan-hint-item { display: inline; }
.plan-hint-item + .plan-hint-item::before { content: " \00b7 "; color: #e5a0a0; }

.plan-suggestions {
  border-left: 3px solid var(--rule);
  padding-left: 10px;
  margin-top: 4px;
}

.plan-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 3px 0;
  font-size: 13px;
}
.plan-item.done { color: var(--status-done); }
.plan-item.todo { color: var(--fg); cursor: pointer; }
.plan-item.todo:hover { background: var(--ink-50); border-radius: 3px; }
.plan-item .icon { flex-shrink: 0; width: 18px; text-align: center; }
.plan-item .label { flex: 1; }
.plan-item .hint { font-size: 11px; color: var(--fg-soft); }
.plan-item.ge-hint { color: var(--fg-muted); font-style: italic; padding-left: 26px; }
.plan-note { font-size: 12px; color: var(--fg-muted); padding: 4px 0 4px 26px; }

.term-badge {
  display: inline-block;
  font-family: var(--mds-sans);
  font-size: 10px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
  margin-left: 4px;
  vertical-align: baseline;
}
.term-badge.fall { background: #fef3c7; color: #92400e; }
.term-badge.spring { background: #dbeafe; color: var(--accent-indigo); }
.term-badge.both { background: var(--ink-100); color: var(--ink-600); }

.term-warning {
  font-size: 12px;
  color: var(--status-todo);
}

.sem-credit-warn { color: var(--status-todo); font-weight: 700; }

.sem-status {
  font-size: 11px;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  gap: 3px;
  cursor: default;
}
.sem-status input { cursor: pointer; }
.remove-sem { font-size: 16px; line-height: 1; padding: 0 4px; color: var(--fg-soft); border: none; background: none; cursor: pointer; transition: color 120ms ease; }
.remove-sem:hover { color: var(--status-todo); }

/* ── Intake wizard modal ─────────────────────────────────── */

.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(10,10,10,0.4);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal-overlay.visible { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 24px;
  max-width: 480px;
  width: 90%;
  box-shadow: 0 4px 12px rgba(10,10,10,0.08), 0 2px 4px rgba(10,10,10,0.04);
}
.modal h3 {
  font-family: var(--mds-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 12px;
}
.modal p { font-size: 13px; color: var(--fg-muted); margin-bottom: 16px; }
.modal .question {
  margin-bottom: 14px;
  font-size: 13px;
}
.modal .question label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  margin-top: 4px;
}
.modal .btn-row {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 16px;
}
.modal .btn-row button {
  padding: 6px 20px;
  border-radius: 4px;
  font-family: var(--mds-sans);
  font-size: 13px;
  font-weight: 600;
  border: 1.25px solid var(--ink-900);
  cursor: pointer;
  transition: all 120ms ease;
}
.modal .btn-primary {
  background: var(--ink-900);
  color: var(--ink-0);
  border-color: var(--ink-900);
}
.modal .btn-primary:hover { background: var(--accent); border-color: var(--accent); }
.modal .btn-secondary {
  background: var(--surface);
  color: var(--fg);
}
.modal .btn-secondary:hover { background: var(--ink-100); }

/* ── Other requirements ─────────────────────────────────── */

.other-req-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 0;
  font-size: 13px;
  flex-wrap: wrap;
}
.other-req-item label {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  flex-shrink: 0;
}
.other-req-item label input[type="checkbox"] { cursor: pointer; }
.other-req-note {
  flex: 1;
  min-width: 100px;
  padding: 2px 6px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  font-family: var(--mds-sans);
  font-size: 12px;
  color: var(--fg);
}
.other-req-note::placeholder { color: var(--fg-soft); }
.other-req-item.done label { color: var(--status-done); }

#school-courses-area { font-size: 12px; }
#school-courses-area .sem-courses {
  width: 100%;
  font-family: var(--mds-mono);
  font-size: 13px;
  padding: 6px 8px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  resize: vertical;
  color: var(--fg);
}

.route-note {
  background: #fef3c7;
  border-left: 3px solid var(--accent-ochre);
  padding: 8px 12px;
  font-size: 12px;
  color: #92400e;
  margin-bottom: 12px;
  border-radius: 0 4px 4px 0;
}

/* ── Advisor Notes ─────────────────────────────────────── */

.advisor-note {
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 8px;
  margin-bottom: 6px;
}
.note-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}
.note-date {
  font-family: var(--mds-sans);
  font-size: 12px;
  padding: 2px 6px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  color: var(--fg);
  flex: 1;
}
.note-text {
  width: 100%;
  font-family: var(--mds-sans);
  font-size: 12px;
  padding: 6px 8px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  resize: vertical;
  line-height: 1.5;
  color: var(--fg);
}

/* ── Schedule tab ──────────────────────────────────────── */

.sched-toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.sched-label {
  font-size: 12px;
  color: var(--fg-muted);
}
.sched-label select {
  display: block;
  margin-top: 2px;
  padding: 4px 8px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-family: var(--mds-sans);
  font-size: 13px;
}

.sched-picker { margin-bottom: 10px; }
.sched-add-row {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}
.sched-add-row input {
  flex: 1;
  padding: 5px 8px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-family: var(--mds-sans);
  font-size: 13px;
  color: var(--fg);
}
.sched-course {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  font-size: 13px;
  flex-wrap: wrap;
}
.sched-course-code {
  font-family: var(--mds-mono);
  font-weight: 600;
  font-size: 12px;
  min-width: 75px;
}
.sched-course-title {
  color: var(--fg-muted);
  font-size: 12px;
  flex: 1;
  min-width: 80px;
}
.sched-course select {
  font-size: 12px;
  padding: 2px 6px;
  border: 1px solid var(--rule);
  border-radius: 3px;
}
.sched-course .prog-remove-btn { flex-shrink: 0; }

.sched-overlap-alert {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 4px;
  padding: 6px 10px;
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--status-todo);
  font-weight: 600;
}

.sched-calendar-wrap {
  overflow-x: auto;
}
.sched-calendar {
  display: flex;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
  min-height: 400px;
}
.sched-time-col {
  width: 48px;
  flex-shrink: 0;
  background: var(--ink-50);
  position: relative;
}
.sched-time-label {
  position: absolute;
  right: 4px;
  font-family: var(--mds-mono);
  font-size: 10px;
  color: var(--fg-soft);
  transform: translateY(-50%);
}
.sched-day-col {
  flex: 1;
  min-width: 80px;
  display: flex;
  flex-direction: column;
}
.sched-day-header {
  text-align: center;
  font-family: var(--mds-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-600);
  padding: 4px 0;
  background: var(--ink-50);
  border-bottom: 1px solid var(--rule);
}
.sched-day-body {
  flex: 1;
  position: relative;
  background: var(--surface);
}
.sched-hour-line {
  position: absolute;
  left: 0;
  right: 0;
  border-top: 1px solid var(--ink-100);
}
.sched-block {
  position: absolute;
  left: 2px;
  right: 2px;
  border-radius: 3px;
  padding: 2px 4px;
  font-size: 10px;
  line-height: 1.3;
  overflow: hidden;
  border: 1px solid transparent;
  cursor: default;
}
.sched-block-code {
  font-family: var(--mds-mono);
  font-weight: 700;
  font-size: 9px;
}
.sched-block-time {
  opacity: 0.7;
}
.sched-block.overlap {
  border-color: var(--status-todo);
  box-shadow: 0 0 0 1px #fecaca;
}

/* Block colors */
.sched-color-0 { background: #dbeafe; border-color: #93c5fd; color: var(--sched-c0); }
.sched-color-1 { background: #dcfce7; border-color: #86efac; color: var(--sched-c1); }
.sched-color-2 { background: #fef3c7; border-color: #fcd34d; color: var(--sched-c2); }
.sched-color-3 { background: #fce7f3; border-color: #f9a8d4; color: var(--sched-c3); }
.sched-color-4 { background: #e0e7ff; border-color: #a5b4fc; color: var(--sched-c4); }
.sched-color-5 { background: #f3e8ff; border-color: #c4b5fd; color: var(--sched-c5); }
.sched-color-6 { background: #ccfbf1; border-color: #5eead4; color: var(--sched-c6); }
.sched-color-7 { background: #fef2f2; border-color: #fca5a5; color: var(--sched-c7); }

/* ── Focus states (accessible) ───────────────────────────── */
:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 2px;
}