/* Teaching Schedule PWA — Styles */
/* Edit fonts, colours and layout here */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
:root {
  --bg: #f5f2ee;
  --surface: #ffffff;
  --card: #ffffff;
  --border: #e2ddd7;
  --text: #1a1714;
  --sub: rgba(26, 23, 20, 0.42);
  --sub2: rgba(26, 23, 20, 0.22);
  --gold: #b8872a;
  --green: #2d8a5e;
  --red: #b85252;
  --now-bg: rgba(45, 138, 94, 0.08);
  --now-border: rgba(45, 138, 94, 0.25);
  --tab-h: 60px;
  --safe-b: env(safe-area-inset-bottom, 20px);
  --safe-t: env(safe-area-inset-top, 0px);
}
html,
body {
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  background: #f5f2ee;
}
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  user-select: none;
}
/* #app fills exact screen height — set via JS for PWA accuracy */
#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding-top: env(safe-area-inset-top, 0px);
  overflow: hidden;

  background: var(--bg);
}
#views {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
}
.view {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: none;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition:
    opacity 0.22s ease,
    transform 0.22s ease;
  padding-bottom: calc(var(--tab-h) + env(safe-area-inset-bottom, 0px) + 32px);
  /* prevent text selection cursor on drag */
  -webkit-user-select: none;
  user-select: none;
  /* tell browser we handle vertical touch */
  touch-action: pan-y;
}
.view.active {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
/* Tabbar: flex item (not fixed) so it always sits at the true bottom of #app */
#tabbar {
  /* Fixed to screen bottom, spans full width */
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(245, 242, 238, 0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--border);
  z-index: 100;
  /* Padding fills the home indicator zone below the tab row */
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
#tabbar-inner {
  /* Fixed height row for the actual tab buttons */
  height: var(--tab-h);
  display: flex;
  align-items: center;
}
.tab {
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  cursor: pointer;
  color: var(--sub);
  transition: color 0.18s;
  -webkit-tap-highlight-color: transparent;
}
.tab.active {
  color: var(--gold);
}
.tab svg {
  width: 20px;
  height: 20px;
  stroke-width: 1.7;
  fill: none;
  stroke: currentColor;
}
.tab span {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.03em;
}
/* Loading */
#loading {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  gap: 14px;
}
#loading.hidden {
  display: none;
}
.spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
#loading-msg {
  color: var(--sub);
  font-size: 15px;
}
/* Page header */
.page-hdr {
  padding: 22px 20px 0;
}
.page-title {
  font-family: 'DM Serif Display', serif;
  font-size: 34px;
  line-height: 1.1;
}
.page-sub {
  font-size: 14px;
  color: var(--sub);
  margin-top: 3px;
}
.sec-lbl {
  font-size: 12px;
  color: var(--sub);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  padding: 18px 20px 8px;
}
/* Next banner */
.next-banner {
  margin: 14px 16px 0;
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(
    135deg,
    rgba(212, 168, 67, 0.13),
    rgba(212, 168, 67, 0.04)
  );
  border: 1px solid rgba(212, 168, 67, 0.22);
}
.next-banner.inactive {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border);
}
.pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(212, 168, 67, 0.18);
  animation: pdot 2s ease-in-out infinite;
}
.pulse-dot.off {
  background: var(--sub);
  animation: none;
  box-shadow: none;
}
@keyframes pdot {
  0%,
  100% {
    box-shadow: 0 0 0 4px rgba(212, 168, 67, 0.18);
  }
  50% {
    box-shadow: 0 0 0 9px rgba(212, 168, 67, 0);
  }
}
.next-lbl {
  font-size: 12px;
  color: var(--sub);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.next-name {
  font-size: 17px;
  font-weight: 600;
  margin-top: 2px;
}
.next-cd {
  font-size: 14px;
  color: var(--gold);
  margin-top: 1px;
  font-variant-numeric: tabular-nums;
}
/* Class cards */
.class-list {
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.class-card {
  display: flex;
  align-items: stretch;
  background: var(--card);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  min-height: 62px;
}
.class-card.is-now {
  background: var(--now-bg);
  border-color: var(--now-border);
}
.class-card.is-past {
  opacity: 0.38;
}
.c-bar {
  width: 4px;
  flex-shrink: 0;
}
.c-body {
  flex: 1;
  padding: 11px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.c-time {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  min-width: 44px;
}
.c-time .s {
  font-family: 'DM Mono', monospace;
  font-size: 15px;
  font-weight: 500;
}
.c-time .e {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--sub);
  margin-top: 1px;
}
.c-sep {
  width: 1px;
  background: var(--border);
  align-self: stretch;
  flex-shrink: 0;
}
.c-info {
  flex: 1;
  min-width: 0;
}
.c-name {
  font-size: 17px;
  font-weight: 600;
}
.c-meta {
  font-size: 13px;
  color: var(--sub);
  margin-top: 2px;
}
.now-badge {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--green);
  background: rgba(74, 168, 118, 0.14);
  border-radius: 6px;
  padding: 3px 7px;
  flex-shrink: 0;
  text-transform: uppercase;
}
/* Week view */
.week-wrap {
  padding: 12px 16px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.day-block {
  background: var(--surface);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.day-block.is-today {
  border-color: rgba(212, 168, 67, 0.28);
}
.day-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 14px 9px;
  border-bottom: 1px solid var(--border);
}
.dname {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.ddate {
  font-size: 13px;
  color: var(--sub);
  margin-top: 1px;
}
.today-pill {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gold);
  background: rgba(212, 168, 67, 0.11);
  border-radius: 20px;
  padding: 2px 9px;
}
.day-rows {
  padding: 6px 0;
}
.day-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
}
.day-row .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.day-row .rtime {
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  color: var(--sub);
  min-width: 56px;
}
.day-row .rinfo {
  flex: 1;
}
.day-row .rname {
  font-size: 15px;
  font-weight: 500;
}
.day-row .rroom {
  font-size: 13px;
  color: var(--sub);
}
.day-empty {
  padding: 14px;
  text-align: center;
  color: var(--sub);
  font-size: 15px;
  font-style: italic;
}
/* Overview */
.day-selector {
  display: flex;
  gap: 6px;
  padding: 14px 16px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.day-selector::-webkit-scrollbar {
  display: none;
}
.day-pill {
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--sub);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
  flex-shrink: 0;
  font-family: 'DM Sans', sans-serif;
  transition: all 0.15s;
}
.day-pill.active {
  background: var(--gold);
  border-color: var(--gold);
  color: #000;
}
.grp-toggle {
  display: flex;
  gap: 6px;
  padding: 10px 16px 0;
  flex-wrap: wrap;
}
.grp-btn {
  padding: 6px 15px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--sub);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: all 0.15s;
  font-family: 'DM Sans', sans-serif;
}
.ov-wrap {
  padding: 12px 16px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ov-time-block {
  background: var(--surface);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.ov-time-hdr {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
}
.ov-time-label {
  font-family: 'DM Mono', monospace;
  font-size: 14px;
  color: var(--gold);
  font-weight: 500;
  min-width: 54px;
}
.ov-time-end {
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  color: var(--sub);
}
.ov-classes {
  padding: 6px 0;
}
.ov-class-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
}
.ov-bar {
  width: 3px;
  border-radius: 2px;
  height: 28px;
  flex-shrink: 0;
}
.ov-grp-badge {
  font-size: 12px;
  font-weight: 700;
  width: 22px;
  text-align: center;
  border-radius: 4px;
  padding: 2px 0;
  flex-shrink: 0;
}
.ov-class-info {
  flex: 1;
}
.ov-class-name {
  font-size: 15px;
  font-weight: 600;
}
.ov-class-room {
  font-size: 13px;
  color: var(--sub);
}
.ov-class-type {
  font-size: 10px;
  color: var(--sub2);
  margin-left: 4px;
  font-weight: 400;
}
/* Error */
.err-box {
  margin: 20px 16px;
  background: rgba(201, 107, 107, 0.1);
  border: 1px solid rgba(201, 107, 107, 0.3);
  border-radius: 12px;
  padding: 16px;
  font-size: 13px;
  color: var(--red);
  line-height: 1.5;
}
.empty {
  text-align: center;
  padding: 32px 20px;
  color: var(--sub);
  font-size: 13px;
}
.empty .ico {
  font-size: 32px;
  display: block;
  margin-bottom: 10px;
}
::-webkit-scrollbar {
  width: 0;
  height: 0;
}
/* ── Footer meta ── */
#footer-meta-wrap {
  position: fixed;
  bottom: calc(var(--tab-h) + env(safe-area-inset-bottom, 0px));
  left: 0;
  right: 0;
  text-align: center;
  pointer-events: none;
  z-index: 50;
}
#footer-meta {
  font-size: 10px;
  color: var(--sub2);
  padding: 4px 12px;
  font-family: 'DM Mono', monospace;
}

/* ── Pull to refresh ── */
#ptr-indicator {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px;
  pointer-events: none;
  z-index: 999;
  /* default: hidden — JS sets transform/opacity directly */
  transform: translateY(-40px);
  opacity: 0;
}
#ptr-indicator.loading {
  transition: transform 0.2s ease;
}
#ptr-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  flex-shrink: 0;
}
#ptr-indicator.ready #ptr-spinner {
  border-top-color: var(--green);
}
#ptr-indicator.loading #ptr-spinner {
  animation: spin 0.7s linear infinite;
}
#ptr-label {
  font-size: 12px;
  color: var(--sub);
  font-family: 'DM Sans', sans-serif;
}
#ptr-indicator.ready #ptr-label {
  color: var(--green);
}
#ptr-indicator.loading #ptr-label {
  color: var(--sub);
}