/* ============================================================
   Classes / Schedule page
   ============================================================ */

.schedule-head {
  position: sticky;
  top: 64px;
  z-index: 30;
  background: color-mix(in oklch, var(--bg) 92%, transparent);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.schedule-head-inner {
  padding: var(--s-4) 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}

@media (min-width: 720px) {
  .schedule-head-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-5);
  }
}

.format-tabs {
  display: flex;
  gap: var(--s-2);
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  margin: 0 calc(var(--gutter) * -1);
  padding: 0 var(--gutter);
}
.format-tabs::-webkit-scrollbar { display: none; }

.tab {
  flex-shrink: 0;
  padding: var(--s-3) var(--s-5);
  border-radius: var(--r-pill);
  background: transparent;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink-soft);
  transition: all var(--dur-1) var(--ease);
  white-space: nowrap;
}
.tab.is-active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.week-nav {
  display: flex;
  align-items: center;
  gap: var(--s-2);
}
.week-nav-arrow {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
  transition: all var(--dur-1) var(--ease);
}
.week-nav-arrow:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.week-nav-range {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  padding: 0 var(--s-3);
  color: var(--ink);
  min-width: 180px;
  text-align: center;
}

/* ---------- Day blocks ---------- */
.schedule-list {
  padding-block: clamp(var(--s-5), 5vw, var(--s-7));
  display: flex;
  flex-direction: column;
  gap: var(--s-7);
}

.day-block {
  display: grid;
  gap: var(--s-5);
}

@media (min-width: 880px) {
  .day-block {
    grid-template-columns: 200px 1fr;
    gap: var(--s-6);
    align-items: start;
  }
}

.day-meta {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
  position: sticky;
  top: calc(64px + 80px);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--line);
}

@media (min-width: 880px) {
  .day-meta { border-bottom: 0; padding-bottom: 0; }
}

.day-name {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 400;
  letter-spacing: -0.02em;
  font-variation-settings: 'opsz' 144, 'SOFT' 30;
  line-height: 1;
}
.day-name em {
  font-style: italic;
  font-variation-settings: 'opsz' 144, 'SOFT' 100, 'WONK' 1;
  color: var(--sage-deep);
}
.day-date {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink-mute);
}

.day-classes {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.class-row {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: var(--s-4);
  align-items: center;
  padding: var(--s-4) var(--s-5);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  text-align: left;
  width: 100%;
  cursor: pointer;
  transition: all var(--dur-1) var(--ease);
}
.class-row:hover {
  border-color: var(--ink);
  transform: translateX(2px);
  box-shadow: var(--shadow-1);
}
.class-row.is-full {
  opacity: 0.55;
  cursor: not-allowed;
}
.class-row.is-full:hover { transform: none; border-color: var(--line); }

.class-time {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 400;
  letter-spacing: -0.012em;
  font-variation-settings: 'opsz' 144, 'SOFT' 30;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.class-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.class-name {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.class-meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink-mute);
  display: flex;
  gap: var(--s-3);
  align-items: center;
  flex-wrap: wrap;
}
.class-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-faint); }
.class-meta .seats-low { color: var(--clay-deep); }

.class-cta {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: var(--s-2);
}
.class-cta::after {
  content: '→';
  transition: transform var(--dur-1) var(--ease);
}
.class-row:hover .class-cta::after {
  transform: translateX(3px);
  color: var(--sage-deep);
}

/* Sticky mobile book CTA */
.mobile-book {
  position: fixed;
  bottom: var(--s-4);
  left: var(--s-4);
  right: var(--s-4);
  z-index: 25;
  box-shadow: var(--shadow-3);
  border-radius: var(--r-pill);
}

@media (min-width: 720px) {
  .mobile-book { display: none; }
}