:root {
  --c-urgent:    #dc2626;
  --c-urgent-bg: #fee2e2;
  --c-warn:      #d97706;
  --c-warn-bg:   #fef3c7;
  --c-ok:        #16a34a;
  --c-ok-bg:     #dcfce7;
  --c-accent:    #0369a1; /* sky-700 — used for address to anchor the eye */
  --c-bg:        #f8fafc;
  --c-card:      #ffffff;
  --c-text:      #0f172a;
  --c-muted:     #475569;
  --c-border:    #e2e8f0;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans', sans-serif;
  font-size: 17px;
  line-height: 1.4;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}
#app {
  max-width: 600px;
  margin: 0 auto;
  padding: 14px;
  padding-bottom: 60px;
}

/* Header */
.header h1 {
  font-size: 26px; font-weight: 800;
  margin: 0 0 8px;
}
.header-meta {
  display: flex; align-items: center; gap: 10px;
  color: var(--c-muted); font-size: 17px; font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.sep { opacity: 0.5; }
#btnRefresh {
  margin-left: auto;
  min-width: 48px; min-height: 44px;
  border: 1px solid var(--c-border); border-radius: 10px;
  background: var(--c-card); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 12px;
  transition: background 120ms ease, transform 80ms ease;
}
#btnRefresh:active { background: var(--c-bg); transform: scale(0.96); }
#btnRefresh .icon {
  display: inline-block;
  font-size: 22px; line-height: 1;
  font-weight: 700;
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
#btnRefresh.spinning .icon {
  animation: spin 0.8s linear infinite;
}

/* Tabs */
.tab-bar { display: flex; gap: 6px; margin: 14px 0; }
.tab {
  flex: 1; min-height: 48px;
  padding: 10px 14px;
  border: 1px solid var(--c-border); border-radius: 10px;
  background: var(--c-card); color: var(--c-text);
  cursor: pointer; font-size: 16px; font-weight: 600;
  position: relative;
}
.tab.active {
  background: var(--c-text); color: var(--c-bg);
  border-color: var(--c-text);
}
.badge {
  display: inline-block; min-width: 22px; height: 22px;
  padding: 0 7px; margin-left: 6px;
  border-radius: 11px;
  background: var(--c-urgent); color: white;
  font-size: 13px; font-weight: 700; line-height: 22px; text-align: center;
}
.badge.hidden { display: none; }
.hidden { display: none; }

/* Summary chips at top of schedule */
.summary {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 4px 0 14px;
}
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 15px; font-weight: 600;
  background: var(--c-card); border: 1px solid var(--c-border);
}
.chip b { font-weight: 800; }
.chip.urgent { background: var(--c-urgent-bg); color: var(--c-urgent); border-color: transparent; }
.chip.warn   { background: var(--c-warn-bg);   color: var(--c-warn);   border-color: transparent; }
.chip.ok     { background: var(--c-ok-bg);     color: var(--c-ok);     border-color: transparent; }

/* Task card */
.card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-left: 6px solid var(--c-border);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 10px;
}
.card.sev-urgent { border-left-color: var(--c-urgent); }
.card.sev-warn   { border-left-color: var(--c-warn); }
.card.sev-ok     { border-left-color: var(--c-ok); }
.card.vacant     { border-left-color: var(--c-border); background: #fafafa; }

.card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.card-room {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 10px;
  flex: 1;
  min-width: 0;
}
.room-num {
  font-size: 28px; font-weight: 800;
  color: var(--c-text);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.addr {
  font-size: 20px; font-weight: 700;
  color: var(--c-accent);
  letter-spacing: 0.01em;
}
.times {
  font-size: 19px; font-weight: 500;
  color: var(--c-text);
  font-variant-numeric: tabular-nums;
}
.times b { font-weight: 700; }

.day-tag {
  display: inline-block;
  margin-left: 4px;
  padding: 2px 10px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  background: var(--c-warn-bg);
  color: var(--c-warn);
  vertical-align: 2px;
}

.pill {
  flex-shrink: 0;
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 16px; font-weight: 700;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.pill.urgent { background: var(--c-urgent-bg); color: var(--c-urgent); }
.pill.warn   { background: var(--c-warn-bg);   color: var(--c-warn); }
.pill.ok     { background: var(--c-ok-bg);     color: var(--c-ok); }
.pill.vacant { background: #f1f5f9; color: var(--c-muted); }

/* Changelog entry */
.change {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 8px;
}
.change-head {
  font-size: 14px; color: var(--c-muted);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.change-body { margin-top: 4px; font-size: 16px; }
.change.urgent { border-left-color: var(--c-urgent); }
.change.warn   { border-left-color: var(--c-warn); }
.change.ok     { border-left-color: var(--c-ok); }

/* Empty + footer */
.empty {
  padding: 40px 16px;
  text-align: center;
  color: var(--c-muted);
  font-size: 16px;
}
.footer {
  text-align: center;
  font-size: 12px;
  color: var(--c-muted);
  margin-top: 20px;
  min-height: 18px;
}