:root {
  --accent: #005588; /* SLUH Blue */
  --accent-rgb: 0, 85, 136;
}

:root,
[data-theme="dark"] {
  --bg: #0b0b0d;
  --panel: #17181c;
  --border: #232429;
  --track: #1c1d21;
  --text: #e7e7ea;
  --text-dim: #6c6d74;
  --good: #34d399;
  --good-bg: rgba(52, 211, 153, 0.12);
  --bad: #fb7185;
  --bad-bg: rgba(251, 113, 133, 0.12);
  --overlay-bg: rgba(0, 0, 0, 0.55);
  color-scheme: dark;
}

/* SLUH brand palette: Navy #003366 (anchor -> text), Blue #005588 (accent),
   Spirit Blue #88ccec, Dark Gray #777777, Light Gray #eeeeee, Warm Gray #ccccbb */
[data-theme="light"] {
  --bg: #ffffff;
  --panel: #ffffff;
  --border: #dcdcd6;
  --track: #eeeeee;
  --text: #003366;
  --text-dim: #777777;
  --good: #0a9463;
  --good-bg: #e4f7ef;
  --bad: #c0304a;
  --bad-bg: #fbe6ea;
  --overlay-bg: rgba(0, 51, 102, 0.35);
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
  overflow-y: scroll;
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding: 0 1.5rem 2.5rem;
}

a { color: var(--accent); }

/* --- topbar (shared) --- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  max-width: 760px;
  margin: 0 auto;
  padding: 1rem 0 0.5rem;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text);
}

.title a { color: inherit; text-decoration: none; }
.title a:hover { color: var(--accent); }

.header-controls {
  display: flex;
  gap: 0.5rem;
}

.icon-btn {
  appearance: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 0.85rem;
  cursor: pointer;
  line-height: 1;
}
.icon-btn:hover { color: var(--text); border-color: var(--text-dim); }

.icon-btn.labeled {
  width: auto;
  height: auto;
  gap: 0.4rem;
  padding: 0.3rem 0.65rem;
  font-size: 0.78rem;
  text-decoration: none;
}

main {
  max-width: 760px;
  margin: 0 auto;
}

/* --- buttons --- */

.btn {
  appearance: none;
  font-family: inherit;
  font-size: 0.85rem;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--track);
  color: var(--text);
}
.btn:hover { border-color: var(--text-dim); }
.btn:disabled { opacity: 0.5; cursor: default; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover { filter: brightness(1.08); border-color: var(--accent); }

.btn-danger {
  background: none;
  border-color: var(--bad);
  color: var(--bad);
}
.btn-danger:hover { background: var(--bad-bg); }

.ghost-btn {
  appearance: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.2rem 0.55rem;
  color: var(--text-dim);
  font-size: 0.72rem;
  font-family: inherit;
  cursor: pointer;
}
.ghost-btn:hover { color: var(--text); border-color: var(--text-dim); }

.mode-btn {
  appearance: none;
  flex: 1;
  background: var(--track);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.35rem 0;
  color: var(--text-dim);
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
}
.mode-btn.active { color: var(--text); border-color: var(--accent); }

/* --- forms --- */

label { font-size: 0.78rem; color: var(--text-dim); }

input[type="text"],
input[type="password"],
input[type="date"],
input[type="search"],
select {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  padding: 0.5rem 0.6rem;
  width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 0.8rem;
}

/* --- cards / panels --- */

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
}

.card + .card { margin-top: 0.9rem; }

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  margin-bottom: 0.7rem;
}
.card-head h2 { margin: 0; font-size: 0.85rem; font-weight: 600; }

.badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--accent);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.7rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.pill.is-open { border-color: var(--good); color: var(--good); }
.pill.is-open::before { content: "●"; font-size: 0.55rem; }
.pill.is-closed::before { content: "●"; font-size: 0.55rem; color: var(--text-dim); }

/* --- tables --- */

table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
th, td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
}
th {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
tbody tr:hover { background: var(--track); }
.table-wrap { overflow-x: auto; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

/* --- empty / helper text --- */

.empty { color: var(--text-dim); font-size: 0.85rem; padding: 1.5rem 0; text-align: center; }
.hint { color: var(--text-dim); font-size: 0.75rem; line-height: 1.5; }

/* --- overlay / login --- */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--overlay-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.overlay[hidden] { display: none; }

.panel {
  width: 100%;
  max-width: 320px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem 1.3rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

/* =========================================================
   scan / kiosk page
   ========================================================= */

.scan-page main {
  min-height: calc(100vh - 5rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 2rem;
}

.meeting-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: center;
  max-width: 620px;
}

.meeting-chip {
  appearance: none;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.9rem 1.3rem;
  color: var(--text);
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  min-width: 180px;
}
.meeting-chip:hover { border-color: var(--accent); }
.meeting-chip.active { border-color: var(--accent); background: rgba(var(--accent-rgb), 0.08); }
.meeting-chip .club-name { font-size: 1rem; font-weight: 600; }
.meeting-chip .meeting-meta { display: block; margin-top: 0.2rem; font-size: 0.75rem; color: var(--text-dim); }

.scan-stage {
  margin-top: 2.5rem;
  width: 100%;
  max-width: 420px;
  text-align: center;
}

.scan-stage .club-heading { font-size: 1.1rem; font-weight: 600; margin-bottom: 1rem; }

.scan-input {
  width: 100%;
  font-size: 1.4rem;
  text-align: center;
  letter-spacing: 0.08em;
  padding: 1rem;
  border-radius: 12px;
  background: var(--panel);
  border: 2px solid var(--border);
  color: var(--text);
  font-family: inherit;
}
.scan-input:focus { outline: none; border-color: var(--accent); }

.scan-feedback {
  margin-top: 1.2rem;
  padding: 1rem;
  border-radius: 12px;
  font-size: 1rem;
  min-height: 3.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  transition: opacity 0.15s ease;
}
.scan-feedback[hidden] { display: none; }
.scan-feedback.ok { background: var(--good-bg); color: var(--good); }
.scan-feedback.err { background: var(--bad-bg); color: var(--bad); }
.scan-feedback .fb-name { font-size: 1.3rem; font-weight: 700; }
.scan-feedback .fb-sub { font-size: 0.78rem; opacity: 0.85; }

.no-open-meetings { max-width: 420px; text-align: center; color: var(--text-dim); padding-top: 2rem; }

/* =========================================================
   teacher dashboard
   ========================================================= */

.login-form h1 { font-size: 1rem; margin: 0 0 1rem; }
.login-error { color: var(--bad); font-size: 0.8rem; margin-top: 0.4rem; min-height: 1.1em; }

.teacher-tabs {
  display: flex;
  gap: 1.1rem;
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 0 0;
  margin-bottom: 1rem;
}
.teacher-tab {
  appearance: none;
  background: none;
  border: none;
  padding: 0 0 0.5rem;
  margin-bottom: -1px;
  color: var(--text-dim);
  font-size: 0.82rem;
  font-family: inherit;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.teacher-tab:hover { color: var(--text); }
.teacher-tab.active { color: var(--text); border-bottom-color: var(--accent); }
.teacher-panel[hidden] { display: none; }

.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: flex-end;
}
.inline-form .field { margin-bottom: 0; min-width: 140px; flex: 1; }
.inline-form .field.grow-0 { flex: none; min-width: 0; }

.meeting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
}
.meeting-row:last-child { border-bottom: none; }
.meeting-row .meeting-info { display: flex; flex-direction: column; gap: 0.15rem; }
.meeting-row .meeting-club { font-weight: 600; font-size: 0.88rem; }
.meeting-row .meeting-date { font-size: 0.72rem; color: var(--text-dim); }
.meeting-row .meeting-actions { display: flex; align-items: center; gap: 0.6rem; }

.filter-row { display: flex; align-items: center; flex-wrap: wrap; gap: 0.4rem 1.1rem; margin-bottom: 0.9rem; font-size: 0.8rem; color: var(--text-dim); }
.filter-row input[type="checkbox"] { accent-color: var(--accent); }
.filter-row label { display: inline-flex; align-items: center; gap: 0.35rem; }
.filter-row select { width: auto; padding: 0.25rem 0.4rem; font-size: 0.8rem; }
.filter-row .ghost-btn { margin-left: auto; }

th.sortable { cursor: pointer; user-select: none; white-space: nowrap; }
th.sortable:hover { color: var(--text); }
th.sortable .sort-arrow { display: inline-block; width: 0.9em; opacity: 0.5; }
th.sortable.sorted .sort-arrow { opacity: 1; color: var(--accent); }

.toast {
  position: fixed;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.6rem 1rem;
  font-size: 0.82rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  z-index: 200;
}
.toast[hidden] { display: none; }