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

:root {
  --bg: #2e2e2e;
  --card: #3a3a3a;
  --input-bg: #2e2e2e;
  --dropdown-bg: #2a2a2a;
  --amber: #fbbf24;
  --amber-light: #fcd34d;
  --green: #4ade80;
  --red: #f87171;
}

body {
  background: var(--bg);
  color: var(--amber);
  font-family: system-ui, sans-serif;
  min-height: 100vh;
}

#app {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 24px;
  gap: 32px;
}

/* ── Major notes ── */

.major-notes-details {
  width: 100%;
  max-width: 720px;
  background: var(--card);
  border-radius: 8px;
  overflow: hidden;
}

.major-notes-summary {
  padding: 10px 16px;
  cursor: pointer;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(251, 191, 36, 0.7);
  user-select: none;
}

.major-notes-summary:hover {
  color: var(--amber);
}

.major-notes-body {
  padding: 12px 16px;
  font-family: system-ui, sans-serif;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  color: rgba(251, 191, 36, 0.85);
  border-top: 1px solid rgba(251, 191, 36, 0.1);
}

/* ── Major selector ── */

.major-selector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.label-muted {
  color: rgba(251, 191, 36, 0.6);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

#major-select {
  background: var(--card);
  color: var(--amber);
  border: none;
  border-radius: 12px;
  padding: 8px 16px;
  font-size: 14px;
  min-width: 288px;
  outline: none;
  cursor: pointer;
}
#major-select:focus {
  box-shadow: 0 0 0 1px var(--amber);
}

/* ── Semester cards ── */

.semesters-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}

.semester-card {
  background: var(--card);
  border-radius: 16px;
  padding: 24px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.semester-name-input {
  color: var(--amber);
  background: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  font-size: 20px;
  font-weight: 600;
  outline: none;
  padding-bottom: 4px;
  transition: border-color 0.2s;
  width: 100%;
}
.semester-name-input:focus {
  border-bottom-color: var(--amber);
}

.course-inputs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ── Course autocomplete ── */

.course-input-wrapper {
  position: relative;
}

.course-input {
  width: 100%;
  color: var(--amber);
  background: var(--input-bg);
  border: none;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  outline: none;
  transition: box-shadow 0.2s;
}
.course-input::placeholder {
  color: rgba(251, 191, 36, 0.3);
}
.course-input:focus {
  box-shadow: 0 0 0 1px var(--amber);
}

.suggestions {
  position: absolute;
  z-index: 10;
  top: 100%;
  margin-top: 4px;
  width: 100%;
  background: var(--dropdown-bg);
  border: 1px solid rgba(251, 191, 36, 0.2);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  list-style: none;
  display: none;
}

.suggestion-item {
  padding: 8px 12px;
  font-size: 14px;
  color: var(--amber-light);
  cursor: pointer;
}
.suggestion-item:hover {
  background: rgba(251, 191, 36, 0.1);
}
.suggestion-code { font-weight: 600; }
.suggestion-title { color: rgba(251, 191, 36, 0.6); margin-left: 8px; }
.suggestion-units { color: rgba(251, 191, 36, 0.4); margin-left: 4px; font-size: 12px; }

/* ── Add class / semester buttons ── */

.add-class-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  color: var(--amber);
  cursor: pointer;
  font-size: 14px;
  margin-top: 4px;
  padding: 0;
  transition: color 0.2s;
}
.add-class-btn:hover { color: var(--amber-light); }
.add-class-btn .icon { font-size: 20px; line-height: 1; }

.add-semester-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--amber);
  cursor: pointer;
  transition: color 0.2s;
  font-size: 16px;
  font-weight: 500;
}
.add-semester-btn:hover { color: var(--amber-light); }
.icon-lg { font-size: 30px; line-height: 1; }

/* ── Action buttons ── */

.action-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.btn-primary {
  padding: 12px 32px;
  border-radius: 16px;
  background: var(--amber);
  color: var(--bg);
  border: none;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  width: 288px;
  transition: background 0.2s;
}
.btn-primary:hover:not(:disabled) { background: var(--amber-light); }
.btn-primary:disabled { opacity: 0.3; cursor: not-allowed; }

.btn-secondary {
  padding: 12px 32px;
  border-radius: 16px;
  background: var(--card);
  color: var(--amber);
  border: 1px solid rgba(251, 191, 36, 0.3);
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  width: 288px;
  transition: background 0.2s, border-color 0.2s;
}
.btn-secondary:hover:not(:disabled) {
  background: #444;
  border-color: rgba(251, 191, 36, 0.6);
}
.btn-secondary:disabled { opacity: 0.3; cursor: not-allowed; }

/* ── Results ── */

#results {
  width: 100%;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 8px;
}

.result-banner {
  border-radius: 16px;
  padding: 16px 24px;
  text-align: center;
  font-size: 24px;
  font-weight: 700;
}
.result-banner.ready     { background: rgba(22, 101, 52, 0.4);  color: var(--green); }
.result-banner.not-ready { background: rgba(127, 29, 29, 0.4); color: var(--red); }

.stats-row {
  display: flex;
  gap: 12px;
}
.stat-card {
  flex: 1;
  background: var(--card);
  border-radius: 16px;
  padding: 12px 20px;
  text-align: center;
}
.stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-label.amber { color: rgba(251, 191, 36, 0.5); }
.stat-label.green { color: rgba(74, 222, 128, 0.6); }
.stat-label.red   { color: rgba(248, 113, 113, 0.6); }
.stat-value {
  font-size: 30px;
  font-weight: 700;
  margin-top: 4px;
}
.stat-value.amber { color: var(--amber); }
.stat-value.green { color: var(--green); }
.stat-value.red   { color: var(--red); }

.result-section {
  background: var(--card);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.result-section-header {
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.result-section-header.missing   { color: var(--red); }
.result-section-header.satisfied { color: var(--green); }
.result-section-header.no-art    { color: rgba(234, 179, 8, 0.8); }

details.result-section > summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  list-style: none;
}
details.result-section > summary::-webkit-details-marker { display: none; }
details.result-section.satisfied > summary { color: var(--green); }
details.result-section.no-art    > summary { color: rgba(234, 179, 8, 0.8); }

.result-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.result-item {
  padding-left: 12px;
}
.result-item.missing   { border-left: 2px solid rgba(239, 68, 68, 0.5); }
.result-item.satisfied { border-left: 2px solid rgba(22, 163, 74, 0.5); }
.result-item.no-art    { border-left: 2px solid rgba(202, 138, 4, 0.4); }

.result-item-title {
  color: var(--amber-light);
  font-weight: 600;
  font-size: 14px;
}
.result-item-sub {
  color: rgba(251, 191, 36, 0.6);
  font-size: 12px;
  margin-top: 2px;
}

/* ── Cal-GETC area grid ── */

.area-grid { display: flex; flex-direction: column; gap: 8px; }

.area-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border-radius: 12px;
  padding: 8px 12px;
}
.area-row.done    { background: rgba(20, 83, 45, 0.2); }
.area-row.missing { background: rgba(127, 29, 29, 0.2); }

.area-code {
  font-size: 12px;
  font-weight: 700;
  width: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}
.area-code.done    { color: var(--green); }
.area-code.missing { color: var(--red); }

.area-body { flex: 1; min-width: 0; }

.area-name {
  font-size: 14px;
  font-weight: 600;
}
.area-name.done    { color: #86efac; }
.area-name.missing { color: #fca5a5; }

.area-courses {
  color: rgba(251, 191, 36, 0.5);
  font-size: 12px;
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.area-note {
  color: rgba(234, 179, 8, 0.7);
  font-size: 12px;
  margin-top: 2px;
}

.area-grid-header {
  color: rgba(251, 191, 36, 0.6);
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}