/* ============================================================
   styles.css — Termwise
   Design language: the original academic degree-audit palette — navy ink,
   antique gold accents, forest success states and brick warnings.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,600;8..60,700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root {
  /* Original academic palette. */
  --paper:         #F4F5EF;
  --paper-dim:     #ECEDE4;
  --card:          #FFFFFF;
  --ink:           #1C2541;
  --ink-soft:      #4B5570;
  --ink-faint:     #7A8299;
  --accent:        #B8860F;
  --accent-deep:   #8C660B;
  --accent-tint:   #F6EBCB;
  --accent-line:   rgba(184, 134, 15, 0.3);
  --success:       #2F6E52;
  --success-tint:  #E4EFE7;
  --success-line:  rgba(47, 110, 82, 0.25);
  --danger:        #A6432E;
  --danger-tint:   #F5E4DF;
  --danger-line:   rgba(166, 67, 46, 0.3);
  --line:          #DBD9CC;
  --line-strong:   #C6C3B2;
  --on-accent:     #FFFFFF;
  --primary:       var(--ink);
  --primary-hover: #2B3A63;
  --on-primary:    #FFFFFF;
  --on-course:     #FFFFFF;

  /* Original calendar sequence, expressed as theme variables. */
  --course-1:      var(--ink);
  --course-2:      var(--accent);
  --course-3:      var(--success);
  --course-4:      #7A4FA0;
  --course-5:      var(--danger);
  --course-6:      var(--success);

  /* Type */
  --font-display: 'Source Serif 4', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --radius: 10px;
  --shadow-card: 0 1px 2px rgba(28, 37, 65, 0.06), 0 1px 0 rgba(28, 37, 65, 0.03);
}

:root[data-theme="dark"] {
  --paper:         #111726;
  --paper-dim:     #182135;
  --card:          #202A3E;
  --ink:           #F3F0E7;
  --ink-soft:      #C3C8D3;
  --ink-faint:     #9AA3B7;
  --accent:        #D9B44A;
  --accent-deep:   #F0CE72;
  --accent-tint:   #403716;
  --accent-line:   rgba(217, 180, 74, 0.42);
  --success:       #79C49F;
  --success-tint:  #18382D;
  --success-line:  rgba(121, 196, 159, 0.36);
  --danger:        #F09A83;
  --danger-tint:   #48271F;
  --danger-line:   rgba(240, 154, 131, 0.38);
  --line:          #354057;
  --line-strong:   #4B5871;
  --on-accent:     #171A22;
  --primary:       #D9B44A;
  --primary-hover: #E6C45F;
  --on-primary:    #171A22;
  --on-course:     #FFFFFF;

  --course-1:      #40598F;
  --course-2:      #946B12;
  --course-3:      #34745A;
  --course-4:      #76509A;
  --course-5:      #A34C39;
  --course-6:      #34745A;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.28), 0 8px 24px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

img { max-width: 100%; }

input, select, textarea { accent-color: var(--accent); }
::selection { background: var(--accent-tint); color: var(--accent-deep); }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 28px;
}

.page-content {
  padding: 40px 0 96px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

h1 { font-size: 2.1rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.15rem; }

p { margin: 0 0 12px; color: var(--ink-soft); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: 10px;
  display: block;
}

.lede {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 62ch;
}

hr.rule {
  border: none;
  border-top: 1px solid var(--line);
  margin: 32px 0;
}

/* ---------- Masthead & step nav ---------- */

#masthead {
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.masthead__top {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 28px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}

.wordmark__mark {
  width: 40px;
  height: 40px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.wordmark__text {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.04em;
  line-height: 1.25;
}

.wordmark__text small {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.masthead__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
}

.masthead__student {
  text-align: right;
  font-size: 0.85rem;
}

.masthead__actions .theme-picker {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.masthead__actions .theme-picker__label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.masthead__actions .theme-picker select {
  width: auto;
  min-width: 92px;
  padding: 7px 28px 7px 10px;
  font-size: 0.8rem;
  background-color: var(--paper);
}

.masthead__student-name {
  display: block;
  font-weight: 600;
  color: var(--ink);
}

.masthead__student-meta {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}

.stepper {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 28px 16px;
  display: flex;
  align-items: center;
  overflow-x: auto;
}

.step {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink-faint);
  white-space: nowrap;
  padding: 4px 2px;
}

.step__marker {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1.5px solid var(--line-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  flex-shrink: 0;
}

.step__label {
  font-size: 0.82rem;
  font-weight: 500;
}

.step--done { color: var(--success); }
.step--done .step__marker { border-color: var(--success); background: var(--success-tint); color: var(--success); }

.step--active { color: var(--ink); }
.step--active .step__marker { border-color: var(--primary); background: var(--primary); color: var(--on-primary); }
.step--active .step__label { font-weight: 700; }

.step--upcoming { cursor: default; }

.step__connector {
  width: 24px;
  height: 1px;
  background: var(--line-strong);
  margin: 0 4px;
  flex-shrink: 0;
}

/* ---------- Buttons ---------- */

.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  padding: 11px 20px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  transition: transform 0.06s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
.btn--primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

.btn--accent { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn--accent:hover { background: var(--accent-deep); border-color: var(--accent-deep); }

.btn--outline { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn--outline:hover { border-color: var(--ink); }

.btn--ghost { background: transparent; color: var(--ink-soft); border-color: transparent; padding: 8px 10px; }
.btn--ghost:hover { color: var(--ink); text-decoration: underline; }

.btn--danger { background: transparent; color: var(--danger); border-color: var(--danger-tint); }
.btn--danger:hover { background: var(--danger-tint); }

.btn--full { width: 100%; }
.btn--sm { padding: 7px 14px; font-size: 0.82rem; }

.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, button:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Cards & sections ---------- */

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 24px;
}

.card + .card { margin-top: 16px; }

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.two-col {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 860px) {
  .two-col { grid-template-columns: 1fr; }
}

/* ---------- Tabs (index page) ---------- */

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}

.tab {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 12px 4px;
  margin-right: 28px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--ink-faint);
  cursor: pointer;
}

.tab--active { color: var(--ink); border-bottom-color: var(--accent); }

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

/* ---------- Forms ---------- */

label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

.field { margin-bottom: 18px; }

.field-hint {
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin-top: 5px;
}

input[type="text"], input[type="search"], input[type="time"], select, textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--paper);
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 11px 12px;
}

input[type="text"]:focus, input[type="search"]:focus, input[type="time"]:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }

.checkbox-grid, .chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  font-size: 0.85rem;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1.5px solid var(--line-strong);
  background: var(--card);
  cursor: pointer;
  user-select: none;
  color: var(--ink-soft);
}

.chip input { display: none; }

.chip:has(input:checked) {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
}

.radio-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.radio-card {
  flex: 1;
  min-width: 140px;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 12px 14px;
  cursor: pointer;
  background: var(--card);
}

.radio-card:has(input:checked) { border-color: var(--accent); background: var(--accent-tint); }

.radio-card input { margin-right: 8px; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 20px;
}

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

/* ---------- Tags / pills ---------- */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.tag--good { background: var(--success-tint); color: var(--success); border-color: var(--success-line); }
.tag--warn { background: var(--danger-tint); color: var(--danger); border-color: var(--danger-line); }
.tag--neutral { background: var(--paper-dim); color: var(--ink-soft); border-color: var(--line); }
.tag--accent { background: var(--accent-tint); color: var(--accent-deep); border-color: var(--accent-line); }

/* ---------- Rubber-stamp signature motif ---------- */

.stamp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 7px 12px;
  border: 2px solid currentColor;
  border-radius: 6px;
  transform: rotate(-2deg);
}

.stamp--met { color: var(--success); }
.stamp--open { color: var(--danger); }
.stamp--ink { color: var(--ink-soft); border-style: dashed; }

.stamp__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ---------- Course code badge ---------- */

.code-badge {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--ink);
  background: var(--paper-dim);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 3px 8px;
  white-space: nowrap;
}

/* ---------- Empty / loading / error states ---------- */

.state-block {
  text-align: center;
  padding: 56px 24px;
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink-soft);
}

.state-block h3 { margin-bottom: 6px; }

.spinner {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 3px solid var(--line-strong);
  border-top-color: var(--accent);
  animation: spin 0.7s linear infinite;
  margin: 0 auto 16px;
}

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

.error-banner {
  background: var(--danger-tint);
  border: 1px solid var(--danger-line);
  color: var(--danger);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 0.88rem;
  margin-bottom: 16px;
}

/* ---------- Progress bar ---------- */

.progress-track {
  height: 8px;
  background: var(--paper-dim);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-deep));
  border-radius: 999px;
}

/* ---------- Requirement rows ---------- */

.req-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.req-row:first-of-type { border-top: none; padding-top: 4px; }

.req-row__label { font-weight: 600; font-size: 0.92rem; }
.req-row__meta { font-size: 0.78rem; color: var(--ink-faint); margin-top: 3px; }

/* ---------- Recommendation cards ---------- */

.rec-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.rec-card + .rec-card { margin-top: 14px; }

.rec-card__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.rec-card__title { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; margin: 0; }

.rec-card__rank {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rec-card__meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px 20px;
  margin: 16px 0;
  font-size: 0.85rem;
}

.meta-item__label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 3px;
}

.rec-card__why {
  background: var(--paper);
  border-left: 3px solid var(--accent);
  padding: 10px 14px;
  font-size: 0.86rem;
  color: var(--ink-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-top: 14px;
}

.rec-card__warnings { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }

.warning-line {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.84rem;
  color: var(--danger);
}

.rec-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 10px;
}

.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }

/* ---------- Weekly calendar grid ---------- */

.calendar {
  display: grid;
  grid-template-columns: 56px repeat(5, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  font-size: 0.78rem;
}

.calendar__head {
  background: var(--paper-dim);
  padding: 8px 4px;
  text-align: center;
  font-weight: 600;
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.calendar__head:first-child { border-left: none; }

.calendar__hour-label {
  padding: 4px;
  text-align: right;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.calendar__cell {
  position: relative;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  min-height: 34px;
}

.calendar__event {
  /* Keep events in their assigned grid area, rather than positioning
     them against the entire calendar when a grid end line is auto. */
  position: relative;
  margin: 1px 3px;
  min-width: 0;
  min-height: 0;
  align-self: stretch;
  z-index: 1;
  border-radius: 4px;
  padding: 3px 6px;
  font-size: 0.68rem;
  line-height: 1.25;
  color: var(--on-course);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.08);
}

.calendar__event strong { display: block; font-family: var(--font-mono); font-size: 0.7rem; }

.calendar__event--conflict {
  outline: 2px solid var(--danger);
  outline-offset: -2px;
}

/* ---------- Plan list (schedule.html) ---------- */

.plan-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}

.plan-item:first-of-type { border-top: none; }

.plan-item__info { flex: 1; min-width: 220px; }
.plan-item__title { font-weight: 600; font-size: 0.95rem; }
.plan-item__meta { font-size: 0.78rem; color: var(--ink-faint); margin-top: 2px; }

.credit-total {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-display);
}

.credit-total__num { font-size: 2rem; font-weight: 700; }
.credit-total__label { color: var(--ink-faint); font-size: 0.82rem; }

/* ---------- Compare table ---------- */

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.compare-table th, .compare-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.compare-table th { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint); background: var(--paper-dim); }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 24px 0;
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.78rem;
}

/* ---------- Utility ---------- */

.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.text-faint { color: var(--ink-faint); font-size: 0.85rem; }
.hidden { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

@media (max-width: 600px) {
  .masthead__actions { width: 100%; justify-content: space-between; }
  .masthead__student { text-align: left; }
}
/* Assistant drafts adapt to narrow screens without changing the calendar. */
.schedule-drafts { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 16px; }
.schedule-draft { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); padding: 16px; }
.schedule-draft h4 { margin: 0 0 8px; }
.schedule-draft ul { padding-left: 20px; }
.schedule-draft li { margin-bottom: 8px; }
.schedule-action-buttons { display: flex; flex-wrap: wrap; gap: 6px; }
.availability-form { display: flex; align-items: end; flex-wrap: wrap; gap: 12px; margin: 16px 0; }
.availability-form .field { flex: 1 1 130px; margin: 0; }
.availability-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; border-top: 1px solid var(--line); padding: 8px 0; }
.schedule-table-scroll { overflow-x: auto; }
.schedule-table-scroll th { white-space: nowrap; }
.schedule-toggle { display: flex; align-items: center; gap: 8px; }
.schedule-toggle input { width: auto; }
#section-actions:empty, #schedule-comparison:empty { display: none; }
details.card > summary { cursor: pointer; }