.avail-hero {
  position: relative;
  padding: 64px 24px 40px;
  background:
    radial-gradient(120% 60% at 12% -10%, rgba(255,122,74,.14), transparent 55%),
    var(--navy-950);
  color: var(--sand-50);
  text-align: center;
}
.avail-hero__inner { max-width: 760px; margin: 0 auto; }
.avail-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  letter-spacing: -.01em;
}
.avail-hero__sub {
  margin-top: 10px;
  color: #b9c2cf;
  font-size: .95rem;
}

/* ---- controls ---- */
.avail-controls {
  margin-top: 32px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: left;
}
.avail-controls__row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px;
  min-width: 0;
}
.avail-controls__row + .avail-controls__row { margin-top: 14px; }

.avail-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: .78rem;
  font-weight: 600;
  color: #b9c2cf;
  min-width: 0;
}
.avail-field--grow { flex: 1; min-width: 0; }

.avail-field select,
.avail-field input[type="time"],
.avail-field input[type="text"] {
  font-family: var(--font-body);
  font-size: .92rem;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(15,27,45,.55);
  color: #fff;
  outline: none;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  min-width: 0;
}
.avail-field select option { color: var(--ink-900); }
.avail-field input::placeholder { color: #8390a0; }
.avail-field select:focus,
.avail-field input:focus { border-color: var(--coral-500); }

.avail-now-btn {
  font-family: var(--font-body);
  font-size: .85rem;
  font-weight: 600;
  color: #fff;
  background: var(--coral-500);
  border: 0;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s ease;
}
.avail-now-btn:hover { background: var(--coral-600); }

.avail-toggle {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: #e3e8ee;
}
.avail-toggle input { accent-color: var(--coral-500); width: 16px; height: 16px; }

/* ---- results ---- */
.avail-results {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px 60px;
}
.avail-results__summary {
  font-size: .92rem;
  color: var(--ink-500);
  margin-bottom: 18px;
}

.avail-disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: #fff7ed;
  border: 1px solid #ffdcc0;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 20px;
}
.avail-disclaimer__icon {
  flex-shrink: 0;
  color: var(--coral-600);
  font-size: 1.1rem;
  line-height: 1.4;
}
.avail-disclaimer p {
  font-size: .84rem;
  line-height: 1.5;
  color: #7a4a2c;
}
.avail-loading, .avail-empty, .avail-error {
  color: var(--ink-500);
  font-size: .95rem;
  padding: 24px 0;
}

.avail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

.building-group {
  grid-column: 1 / -1;
  margin-top: 8px;
}
.building-group:first-child { margin-top: 0; }
.building-group h2 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.building-group__rooms {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

.room-card {
  text-align: left;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius-md);
  padding: 16px 18px;
  cursor: pointer;
  box-shadow: var(--shadow-card);
  transition: transform .15s ease;
}
.room-card:hover { transform: translateY(-2px); }

.room-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.room-card__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
}
.room-card__status {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.room-card__status--free { color: #1c7c4d; background: #e4f6ec; }
.room-card__status--occupied { color: var(--coral-600); background: #ffece4; }

.room-card__detail {
  margin-top: 8px;
  font-size: .84rem;
  color: var(--ink-500);
}
.room-card__course {
  margin-top: 4px;
  font-size: .82rem;
  color: var(--ink-900);
  font-weight: 500;
}

/* ---- weekly timetable panel ---- */
.timetable-panel { width: min(560px, 100%); }

.timetable {
  padding: 18px 24px 28px;
  overflow-y: auto;
  flex: 1;
}
.timetable__day { margin-bottom: 20px; }
.timetable__day-label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--ink-500);
  margin-bottom: 6px;
}
.timetable__track {
  position: relative;
  height: 34px;
  background: var(--sand-100);
  border-radius: 8px;
  overflow: hidden;
}
.timetable__block {
  position: absolute;
  top: 0;
  bottom: 0;
  background: var(--coral-500);
  cursor: default;
}
.timetable__block:hover { background: var(--coral-600); }
.timetable__now-marker {
  position: absolute;
  top: -4px;
  bottom: -4px;
  width: 2px;
  background: var(--navy-950);
}
.timetable__scale {
  display: flex;
  justify-content: space-between;
  font-size: .68rem;
  color: var(--ink-500);
  margin-top: 4px;
}
.timetable__legend {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .78rem;
  color: var(--ink-500);
  margin-bottom: 16px;
}
.timetable__legend span.swatch {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 3px;
  background: var(--coral-500);
}

@media (max-width: 620px) {
  .avail-controls__row { flex-direction: column; align-items: stretch; }
  .avail-field, .avail-field--grow { min-width: 0; width: 100%; }
  .avail-now-btn { width: 100%; }
}