/* Tangram design system.
 *
 * The brand is the tangram: seven pieces that only make a square when nothing overlaps.
 * The seven piece colours appear as the stripe under the top bar and in the logo; the
 * interface itself stays calm (ink, white, one blue) so that bookings stand out.
 */

/* -- fonts (self-hosted, SIL Open Font License, see static/vendor/fonts) ------------- */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../vendor/fonts/inter-latin-wght-normal.8e433c0592f7.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304,
    U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../vendor/fonts/inter-latin-ext-wght-normal.ad4eb06671be.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308,
    U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113,
    U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url("../vendor/fonts/plus-jakarta-sans-latin-wght-normal.13d1b429e990.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304,
    U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url("../vendor/fonts/plus-jakarta-sans-latin-ext-wght-normal.cc2090cafea0.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308,
    U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113,
    U+2C60-2C7F, U+A720-A7FF;
}

/* -- tokens ------------------------------------------------------------------------- */

:root {
  /* Brand */
  --ink: #0f1b2d;
  --ink-2: #1c2a42;
  --ink-3: #2c3d5a;
  --piece-1: #3b82f6;
  --piece-2: #0ea5e9;
  --piece-3: #f59e0b;
  --piece-4: #ef4444;
  --piece-5: #10b981;
  --piece-6: #8b5cf6;
  --piece-7: #f97316;
  --stripe: linear-gradient(90deg,
    var(--piece-1) 0 14.28%, var(--piece-2) 0 28.57%, var(--piece-5) 0 42.85%,
    var(--piece-3) 0 57.14%, var(--piece-7) 0 71.42%, var(--piece-4) 0 85.71%, var(--piece-6) 0);

  /* Surfaces and text */
  --bg: #f4f6fa;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --text: #0f1b2d;
  --muted: #5b6577;
  --border: #e2e7ef;
  --border-strong: #cfd6e2;

  /* Actions */
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --accent-soft: #eaf1ff;
  --accent-ink: #1e3a8a;
  --ring: 0 0 0 3px rgb(37 99 235 / 22%);

  /* Booking kinds */
  --course: #2563eb;
  --course-soft: #e8f0ff;
  --course-ink: #1e3a8a;
  --event: #ea580c;
  --event-soft: #fff1e7;
  --event-ink: #9a3412;
  --exam: #a21caf;
  --exam-soft: #fdf0fe;
  --exam-ink: #701a75;

  /* Status */
  --danger: #c0262d;
  --danger-soft: #fef0ef;
  --danger-line: #f8c9c6;
  --warning: #92600a;
  --warning-soft: #fff7e0;
  --warning-line: #f3dc9b;
  --success: #16794a;
  --success-soft: #e8f7ef;
  --success-line: #b5e3c9;

  /* Shape */
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgb(15 27 45 / 6%);
  --shadow: 0 1px 2px rgb(15 27 45 / 5%), 0 4px 16px -4px rgb(15 27 45 / 8%);
  --shadow-lg: 0 12px 40px -12px rgb(15 27 45 / 25%);

  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Plus Jakarta Sans", var(--font);
  font-family: var(--font);
  font-feature-settings: "cv11", "ss01";
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; text-underline-offset: 3px; }
a:hover { color: var(--accent-dark); text-decoration: underline; }

h1, h2, h3 { font-family: var(--font-display); color: var(--ink); letter-spacing: -0.015em; }
h1 { font-size: 1.85rem; font-weight: 800; line-height: 1.2; margin: 0 0 0.4rem; letter-spacing: -0.025em; }
h2 { font-size: 1.15rem; font-weight: 700; margin: 1.5rem 0 0.75rem; }
h3 { font-size: 1rem; font-weight: 700; margin: 1rem 0 0.5rem; }

:focus-visible { outline: none; box-shadow: var(--ring); border-radius: 6px; }
::selection { background: #cfe0ff; }

/* -- top bar ------------------------------------------------------------------------ */

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--ink);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0 1.5rem;
  min-height: 62px;
  flex-wrap: wrap;
}
/* The seven-colour stripe: the brand signature. */
.topbar::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 3px;
  background: var(--stripe);
}
.topbar a { color: #b9c6db; }
.topbar a:hover { color: #fff; text-decoration: none; }

.brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-display); font-weight: 800; font-size: 1.15rem; letter-spacing: -0.02em;
  color: #fff !important; white-space: nowrap;
}
.brand-mark { width: 28px; height: 28px; flex: none; transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1); }
.brand:hover .brand-mark { transform: rotate(-12deg) scale(1.06); }

.nav { display: flex; gap: 0.1rem; flex-wrap: wrap; flex: 1; }
.nav a {
  padding: 0.4rem 0.6rem; white-space: nowrap; border-radius: 8px; font-weight: 500; font-size: 0.92rem;
  transition: background-color 0.15s, color 0.15s;
}
.nav a:hover { background: rgb(255 255 255 / 7%); }
.nav a.active { color: #fff; background: rgb(255 255 255 / 11%); }

.user-menu { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; font-size: 0.92rem; }
.user-menu select, .user-menu button {
  background: transparent; color: #d4ddeb; border: 1px solid var(--ink-3); border-radius: 8px;
  padding: 0.3rem 0.6rem; font: inherit; font-size: 0.85rem; cursor: pointer;
  transition: border-color 0.15s, background-color 0.15s;
}
.user-menu select { width: auto; padding-right: 0.4rem; }
.user-menu select:hover, .user-menu button:hover { border-color: #52668a; background: rgb(255 255 255 / 5%); }
.user-menu select option { color: var(--text); }
.inline { display: inline; margin: 0; }

/* -- layout ------------------------------------------------------------------------- */

.container { max-width: 1240px; margin: 0 auto; padding: 2.25rem 1.5rem 4rem; }
.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem;
}
.page-header p { margin: 0; color: var(--muted); font-size: 1rem; }
.page-header .row { gap: 0.5rem; }

.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.sidebar-layout { display: grid; grid-template-columns: 300px 1fr; gap: 1.5rem; align-items: start; }
@media (max-width: 860px) { .sidebar-layout { grid-template-columns: 1fr; } }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.35rem 1.5rem;
}
.card > h2:first-child, .card > h3:first-child { margin-top: 0; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.nowrap { white-space: nowrap; }
.stack > * + * { margin-top: 0.75rem; }
.row { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

/* -- buttons ------------------------------------------------------------------------ */

.button, button.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem;
  background: var(--accent); color: #fff; border: 1px solid var(--accent);
  border-radius: var(--radius-sm); padding: 0.55rem 1.05rem; font: inherit; font-weight: 600;
  cursor: pointer; text-decoration: none; line-height: 1.3;
  box-shadow: 0 1px 2px rgb(15 27 45 / 10%), inset 0 1px 0 rgb(255 255 255 / 14%);
  transition: background-color 0.15s, border-color 0.15s, transform 0.1s, box-shadow 0.15s;
}
.button:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; text-decoration: none; }
.button:active { transform: translateY(1px); }
.button:focus-visible { box-shadow: var(--ring); }
.button.secondary { background: var(--surface); color: var(--ink); border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
.button.secondary:hover { background: var(--surface-2); border-color: #b8c2d3; color: var(--ink); }
.button.danger { background: var(--danger); border-color: var(--danger); }
.button.danger:hover { background: #a11f25; border-color: #a11f25; }
.button.small { padding: 0.25rem 0.7rem; font-size: 0.85rem; border-radius: 8px; }
.link-button { background: none; border: none; color: var(--accent); cursor: pointer; padding: 0; font: inherit; }
.link-button:hover { text-decoration: underline; text-underline-offset: 3px; }
.link-button.danger { color: var(--danger); }

/* -- forms -------------------------------------------------------------------------- */

.form-grid { display: grid; gap: 1.1rem 1.1rem; grid-template-columns: repeat(6, 1fr); }
.form-grid .span-2 { grid-column: span 2; }
.form-grid .span-3 { grid-column: span 3; }
.form-grid .span-6 { grid-column: 1 / -1; }
@media (max-width: 700px) { .form-grid > * { grid-column: 1 / -1 !important; } }

.field label, .field > .label { display: block; font-weight: 600; margin-bottom: 0.35rem; font-size: 0.875rem; color: var(--ink); }
.field .help, .help { color: var(--muted); font-size: 0.8rem; margin-top: 0.3rem; }
.field .errorlist { color: var(--danger); margin: 0.3rem 0 0; padding: 0; list-style: none; font-size: 0.85rem; font-weight: 500; }
input[type=text], input[type=email], input[type=password], input[type=date], input[type=time],
input[type=number], input[type=search], input[type=url], select, textarea {
  width: 100%; font: inherit; padding: 0.6rem 0.8rem; border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); background: #fff; color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:hover, select:hover, textarea:hover { border-color: #b8c2d3; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
input::placeholder, textarea::placeholder { color: #8b95a7; }
input[type=checkbox], input[type=radio] { accent-color: var(--accent); width: 1rem; height: 1rem; }
.checkbox-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.checkbox-row label { font-weight: 500; display: inline-flex; gap: 0.4rem; align-items: center; }
.checkbox-row ul, .checkbox-row div { display: flex; gap: 0.5rem; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.form-actions { display: flex; gap: 0.75rem; align-items: center; margin-top: 1.5rem; flex-wrap: wrap; }
.errorlist.nonfield {
  background: var(--danger-soft); color: var(--danger); border: 1px solid var(--danger-line);
  padding: 0.7rem 1rem; border-radius: var(--radius-sm); list-style: none; font-weight: 500;
}

/* -- resource picker ---------------------------------------------------------------- */

.picker { position: relative; }
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.5rem; min-height: 1.5rem; }
.chip {
  display: inline-flex; align-items: center; gap: 0.4rem; background: var(--accent-soft);
  color: var(--accent-ink); border: 1px solid #d3e1ff; border-radius: 999px;
  padding: 0.2rem 0.3rem 0.2rem 0.75rem; font-size: 0.85rem; font-weight: 500;
  animation: chip-in 0.18s ease-out;
}
.chip .type { color: #5873b8; font-size: 0.72rem; font-weight: 500; }
.chip button {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.3rem; height: 1.3rem; border: none; border-radius: 50%; background: transparent;
  cursor: pointer; color: var(--accent-ink); font-size: 1rem; line-height: 1; padding: 0;
}
.chip button:hover { background: rgb(30 58 138 / 10%); }
@keyframes chip-in { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: none; } }

.picker-results {
  position: absolute; z-index: 20; left: 0; right: 0; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-lg); max-height: 300px; overflow-y: auto;
  margin-top: 6px; padding: 0.3rem;
}
.picker-results:empty, .picker-results:not(:has(*)) { display: none; }
.picker-option {
  display: flex; justify-content: space-between; gap: 1rem; width: 100%; text-align: left; border: none;
  background: none; padding: 0.5rem 0.7rem; cursor: pointer; font: inherit; border-radius: 8px; color: var(--text);
}
.picker-option:hover, .picker-option:focus { background: var(--accent-soft); outline: none; box-shadow: none; }
.picker-empty { padding: 0.5rem 0.7rem; color: var(--muted); }

/* -- conflict and warning boxes ------------------------------------------------------ */

.problems { margin-top: 1.25rem; }
.problem-box {
  position: relative; border-radius: var(--radius-sm); padding: 0.9rem 1.1rem 0.9rem 3rem; margin-bottom: 0.75rem;
  border: 1px solid; animation: problem-in 0.25s ease-out;
}
.problem-box::before {
  content: ""; position: absolute; left: 1rem; top: 1rem; width: 1.15rem; height: 1.15rem;
  border-radius: 50%; background: currentColor;
  -webkit-mask: var(--icon) center / contain no-repeat; mask: var(--icon) center / contain no-repeat;
}
.problem-box h3 { margin: 0 0 0.35rem; font-size: 0.95rem; color: inherit; }
.problem-box ul { margin: 0; padding-left: 1.1rem; }
.problem-box li + li { margin-top: 0.2rem; }
.problem-box.block {
  background: var(--danger-soft); color: var(--danger); border-color: var(--danger-line);
  --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 0a10 10 0 100 20 10 10 0 000-20zM9 5h2v6H9V5zm0 8h2v2H9v-2z'/%3E%3C/svg%3E");
}
.problem-box.warn {
  background: var(--warning-soft); color: var(--warning); border-color: var(--warning-line);
  --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 1L0 19h20L10 1zm-1 6h2v6H9V7zm0 8h2v2H9v-2z'/%3E%3C/svg%3E");
}
.problem-box.ok {
  background: var(--success-soft); color: var(--success); border-color: var(--success-line);
  --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 0a10 10 0 100 20 10 10 0 000-20zm-1.2 14.2L4.6 10l1.4-1.4 2.8 2.8 5.2-5.2 1.4 1.4-6.6 6.6z'/%3E%3C/svg%3E");
}
.problem-box .when { font-weight: 700; }
@keyframes problem-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* -- messages ----------------------------------------------------------------------- */

.messages { list-style: none; padding: 0; margin: 0 0 1.25rem; }
.messages li {
  padding: 0.7rem 1rem; border-radius: var(--radius-sm); margin-bottom: 0.5rem; font-weight: 500;
  border: 1px solid; animation: problem-in 0.25s ease-out;
}
.messages .success { background: var(--success-soft); color: var(--success); border-color: var(--success-line); }
.messages .error { background: var(--danger-soft); color: var(--danger); border-color: var(--danger-line); }
.messages .warning { background: var(--warning-soft); color: var(--warning); border-color: var(--warning-line); }
.messages .info { background: var(--accent-soft); color: var(--accent-ink); border-color: #d3e1ff; }

/* -- tables and lists --------------------------------------------------------------- */

table.list { width: 100%; border-collapse: collapse; }
table.list th, table.list td { text-align: left; padding: 0.7rem 0.75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
table.list th {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted);
  font-weight: 700; padding-top: 0.4rem; padding-bottom: 0.6rem;
}
table.list tbody tr { transition: background-color 0.12s; }
table.list tbody tr:hover { background: var(--surface-2); }
table.list tr:last-child td { border-bottom: none; }
table.list td a { font-weight: 500; }
.table-wrap { overflow-x: auto; }

.badge {
  display: inline-flex; align-items: center; gap: 0.3rem; font-size: 0.72rem; padding: 0.12rem 0.55rem;
  border-radius: 999px; background: #eef1f6; color: var(--muted); font-weight: 600; white-space: nowrap;
  vertical-align: 0.1em; letter-spacing: 0.01em;
}
.badge.course, .badge.event, .badge.exam, .badge.pending, .badge.approved, .badge.rejected, .badge.cancelled, .badge.changed {
  padding-left: 0.45rem;
}
.badge.course::before, .badge.event::before, .badge.exam::before, .badge.pending::before, .badge.approved::before,
.badge.rejected::before, .badge.cancelled::before, .badge.changed::before {
  content: ""; width: 0.42rem; height: 0.42rem; border-radius: 50%; background: currentColor;
}
.badge.course { background: var(--course-soft); color: var(--course); }
.badge.event { background: var(--event-soft); color: var(--event); }
.badge.exam { background: var(--exam-soft); color: var(--exam); }
.badge.pending { background: var(--warning-soft); color: var(--warning); }
.badge.approved { background: var(--success-soft); color: var(--success); }
.badge.rejected, .badge.cancelled { background: var(--danger-soft); color: var(--danger); }
.badge.changed { background: #f3ebff; color: #6d28d9; }

.session-list { list-style: none; margin: 0; padding: 0; }
.session-list li {
  padding: 0.65rem 0; border-bottom: 1px solid var(--border);
  display: flex; gap: 0.25rem 1rem; align-items: baseline; flex-wrap: wrap;
}
.session-list li:last-child { border-bottom: none; }
.session-list .time { min-width: 9.5rem; color: var(--muted); font-variant-numeric: tabular-nums; font-weight: 500; }

.tabs {
  display: inline-flex; gap: 0.2rem; flex-wrap: wrap; margin-bottom: 1.25rem; padding: 0.25rem;
  background: #e9edf4; border-radius: 12px;
}
.tabs a { padding: 0.35rem 0.9rem; border-radius: 9px; color: var(--muted); font-weight: 600; font-size: 0.9rem; }
.tabs a:hover { color: var(--ink); text-decoration: none; }
.tabs a.active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }

.pagination { display: flex; gap: 0.75rem; align-items: center; margin-top: 1.25rem; }

.stat {
  font-family: var(--font-display); font-size: 2.4rem; font-weight: 800; line-height: 1.1;
  letter-spacing: -0.03em; color: var(--ink);
}

dl.details { display: grid; grid-template-columns: max-content 1fr; gap: 0.5rem 1.25rem; margin: 0; }
dl.details dt { color: var(--muted); font-weight: 500; }
dl.details dd { margin: 0; }

.copy-field { display: flex; gap: 0.5rem; }
.copy-field input { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 0.8rem; background: var(--surface-2); }

/* -- calendar (FullCalendar theme) -------------------------------------------------- */

#calendar {
  background: var(--surface); padding: 1rem; border-radius: var(--radius);
  border: 1px solid var(--border); box-shadow: var(--shadow);
}
.fc {
  --fc-border-color: var(--border);
  --fc-page-bg-color: var(--surface);
  --fc-neutral-bg-color: var(--surface-2);
  --fc-today-bg-color: #f3f7ff;
  --fc-now-indicator-color: var(--piece-4);
  --fc-highlight-color: rgb(37 99 235 / 12%);
  --fc-list-event-hover-bg-color: var(--surface-2);
  --fc-button-text-color: var(--ink);
  --fc-button-bg-color: var(--surface);
  --fc-button-border-color: var(--border-strong);
  --fc-button-hover-bg-color: var(--surface-2);
  --fc-button-hover-border-color: #b8c2d3;
  --fc-button-active-bg-color: var(--ink);
  --fc-button-active-border-color: var(--ink);
  --fc-event-bg-color: var(--course-soft);
  --fc-event-border-color: var(--course);
  --fc-event-text-color: var(--course-ink);
  font-size: 0.875rem;
}
.fc .fc-toolbar-title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 800; letter-spacing: -0.02em; }
.fc .fc-button {
  font-weight: 600; font-size: 0.85rem; padding: 0.4rem 0.75rem; border-radius: 9px;
  box-shadow: var(--shadow-sm); text-transform: capitalize;
}
.fc .fc-button:focus, .fc .fc-button-primary:not(:disabled):active:focus,
.fc .fc-button-primary:not(:disabled).fc-button-active:focus { box-shadow: var(--ring); }
.fc .fc-button-primary:not(:disabled).fc-button-active,
.fc .fc-button-primary:not(:disabled):active { color: #fff; }
.fc .fc-button-primary:disabled { color: var(--muted); background: var(--surface-2); border-color: var(--border); opacity: 1; }
.fc .fc-button-group > .fc-button { border-radius: 0; }
.fc .fc-button-group > .fc-button:first-child { border-radius: 9px 0 0 9px; }
.fc .fc-button-group > .fc-button:last-child { border-radius: 0 9px 9px 0; }
.fc .fc-col-header-cell-cushion { color: var(--ink); font-weight: 700; padding: 0.5rem 0.25rem; }
.fc .fc-col-header-cell.fc-day-today .fc-col-header-cell-cushion { color: var(--accent); }
.fc .fc-timegrid-slot-label-cushion, .fc .fc-timegrid-axis-cushion { color: var(--muted); font-size: 0.78rem; font-variant-numeric: tabular-nums; }
.fc .fc-daygrid-day-number, .fc .fc-week-number { color: var(--muted); }
.fc a.fc-col-header-cell-cushion:hover, .fc a.fc-daygrid-day-number:hover { text-decoration: none; color: var(--accent); }
.fc .fc-timegrid-slot { height: 1.75rem; }
.fc .fc-timegrid-slot-minor { border-top-style: dotted; }
.fc .fc-scrollgrid { border-radius: var(--radius-sm); overflow: hidden; }

/* Events: a soft fill with a strong left edge, coloured by kind. */
.fc .fc-event { cursor: pointer; transition: box-shadow 0.15s, transform 0.15s; }
.fc .fc-timegrid-event, .fc .fc-daygrid-block-event {
  border-width: 0 0 0 3px; border-radius: 8px; box-shadow: 0 1px 2px rgb(15 27 45 / 8%);
}
.fc .fc-timegrid-event:hover, .fc .fc-daygrid-block-event:hover { box-shadow: 0 6px 16px -6px rgb(15 27 45 / 35%); }
.fc .fc-timegrid-event .fc-event-main { padding: 3px 6px; }
.fc .kind-course { --fc-event-bg-color: var(--course-soft); --fc-event-border-color: var(--course); --fc-event-text-color: var(--course-ink); }
.fc .kind-event { --fc-event-bg-color: var(--event-soft); --fc-event-border-color: var(--event); --fc-event-text-color: var(--event-ink); }
.fc .kind-exam { --fc-event-bg-color: var(--exam-soft); --fc-event-border-color: var(--exam); --fc-event-text-color: var(--exam-ink); }
.fc .fc-daygrid-dot-event.kind-exam .fc-daygrid-event-dot, .fc .fc-list-event.kind-exam .fc-list-event-dot { border-color: var(--exam); }
.fc .fc-daygrid-dot-event.kind-event .fc-daygrid-event-dot { border-color: var(--event); }
.fc .fc-list-event.kind-course .fc-list-event-dot { border-color: var(--course); }
.fc .fc-list-event.kind-event .fc-list-event-dot { border-color: var(--event); }
.fc .fc-event-time { font-size: 0.72rem; font-weight: 600; opacity: 0.85; font-variant-numeric: tabular-nums; }
.fc-event-resources { font-size: 0.72rem; opacity: 0.85; }
.fc .fc-list-day-cushion { background: var(--surface-2); }
.fc .fc-list-day-text, .fc .fc-list-day-side-text { color: var(--ink); font-weight: 700; }
.fc-theme-standard .fc-list { border-radius: var(--radius-sm); }

/* Keep the title visible in narrow columns; the resource list is cut first. */
.fc .fc-event-main-frame { overflow: hidden; }
.fc .fc-event-title { flex-shrink: 0; font-weight: 700; }
.fc .fc-event-resources { min-height: 0; overflow: hidden; }
.fc .fc-toolbar.fc-header-toolbar { flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }

/* -- sign-in page ------------------------------------------------------------------- */

.auth-page { background: var(--ink); }
.auth-page .container {
  min-height: calc(100vh - 62px); display: flex; flex-direction: column; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
/* An exploded tangram floating behind the card. */
.auth-page .container::before {
  content: ""; position: absolute; width: 640px; height: 640px; right: -160px; bottom: -200px;
  background: url("../img/tangram.663ede743115.svg") center / contain no-repeat;
  opacity: 0.16; transform: rotate(14deg); pointer-events: none;
}
.auth-page .container::after {
  content: ""; position: absolute; width: 300px; height: 300px; left: -90px; top: 40px;
  background: url("../img/tangram.663ede743115.svg") center / contain no-repeat;
  opacity: 0.08; transform: rotate(-22deg); pointer-events: none;
}
.auth-card { width: 100%; max-width: 440px; margin: 3rem auto; position: relative; z-index: 1; }
.auth-page .messages + .auth-card { margin-top: 0; }
.auth-page .auth-card { padding: 2.25rem 2.25rem 2rem; box-shadow: 0 30px 80px -20px rgb(0 0 0 / 50%); border: none; }
.auth-brand { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1.5rem; }
.auth-brand img { width: 36px; height: 36px; }
.auth-brand span { font-family: var(--font-display); font-weight: 800; font-size: 1.3rem; color: var(--ink); letter-spacing: -0.02em; }
.auth-card form p { margin: 0 0 0.9rem; }
.sso-buttons { display: grid; gap: 0.6rem; margin: 0.5rem 0 0.25rem; }
.sso-buttons form { margin: 0; }
.sso-button { width: 100%; padding: 0.75rem 1rem; }
.auth-divider { display: flex; align-items: center; gap: 0.75rem; color: var(--muted); font-size: 0.85rem; margin: 1.25rem 0 1rem !important; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.auth-alt { text-align: center; margin: 1.25rem 0 0; font-size: 0.9rem; }
.auth-card label { display: block; font-weight: 600; margin-bottom: 0.35rem; }
.auth-card ul.errorlist { color: var(--danger); padding-left: 1rem; }
.auth-card .form-actions .button { flex: 1 0 100%; padding: 0.7rem 1rem; }
.auth-card .form-actions a { margin: 0 auto; font-size: 0.9rem; }
.auth-page .messages { position: relative; z-index: 2; width: min(440px, 100%); margin: 0 auto 1rem; }

/* -- home --------------------------------------------------------------------------- */

.home-hero {
  position: relative; overflow: hidden; background: var(--ink); color: #fff;
  border-radius: calc(var(--radius) + 4px); padding: 2rem 2.25rem; margin-bottom: 1.5rem;
  display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap;
}
.home-hero::before {
  content: ""; position: absolute; width: 340px; height: 340px; right: -60px; top: -120px;
  background: url("../img/tangram.663ede743115.svg") center / contain no-repeat; opacity: 0.18; transform: rotate(12deg);
  pointer-events: none;
}
.home-hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: var(--stripe); }
.home-hero > * { position: relative; }
.home-hero h1 { color: #fff; font-size: 2.1rem; }
.home-hero p { margin: 0; color: #b9c6db; max-width: 40rem; font-size: 1.02rem; }
.home-hero .button.secondary { background: rgb(255 255 255 / 8%); color: #fff; border-color: rgb(255 255 255 / 22%); box-shadow: none; }
.home-hero .button.secondary:hover { background: rgb(255 255 255 / 14%); }

/* -- reports ------------------------------------------------------------------------ */

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.report-period { margin-bottom: 1.5rem; }
.exam-day { margin-bottom: 1.25rem; }
.exam-day h2 { margin-top: 0; }
.report-period .form-actions { margin-top: 1rem; }

.stat-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin-bottom: 1.25rem; }
.stat-tile {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1rem 1.25rem;
}
.stat-label { color: var(--muted); font-size: 0.85rem; font-weight: 500; }
.stat-value {
  font-family: var(--font-display); font-size: 1.9rem; font-weight: 700; letter-spacing: -0.02em;
  color: var(--ink); line-height: 1.2; margin-top: 0.15rem; font-variant-numeric: tabular-nums;
}

.report-table th.num, .report-table td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.report-table .bar-col { width: 32%; min-width: 11rem; }
@media (max-width: 700px) {
  .report-table .hide-sm, .attendance-table .hide-sm { display: none; }
  .segmented span { padding: 0.4rem 0.5rem; font-size: 0.8rem; }
  .report-table .bar-col { width: 45%; min-width: 7rem; }
  .stat-value { font-size: 1.5rem; }
  .stat-tile { padding: 0.8rem 1rem; }
}
table.list.report-table td { vertical-align: middle; }

/* Occupancy: one hue, the unfilled track a lighter step of the same blue. */
.meter-row { display: flex; align-items: center; gap: 0.75rem; }
.meter { flex: 1; height: 8px; border-radius: 999px; background: #dbe6fd; overflow: hidden; }
.meter > span { display: block; height: 100%; border-radius: 999px; background: var(--accent); min-width: 0; }
.meter-value { min-width: 3.2rem; text-align: right; font-variant-numeric: tabular-nums; color: var(--text); font-weight: 600; }

/* Teaching load: courses then events, a 2px gap between the parts, widths relative to the busiest teacher. */
.load-bar { display: flex; gap: 2px; height: 8px; }
.load-bar > span { display: block; height: 100%; border-radius: 999px; min-width: 2px; }
.load-bar .course { background: var(--course); }
.load-bar .event { background: var(--event); }
.load-bar .exam { background: var(--exam); }
.legend { display: flex; gap: 1.25rem; font-size: 0.85rem; color: var(--muted); margin: 0 0 0.75rem; }
.legend span { display: inline-flex; align-items: center; gap: 0.4rem; }
.swatch { width: 0.7rem; height: 0.7rem; border-radius: 3px; display: inline-block; }
.swatch.course { background: var(--course); }
.swatch.event { background: var(--event); }
.swatch.exam { background: var(--exam); }

/* -- slot finder -------------------------------------------------------------------- */

.slot-list { list-style: none; margin: 0; padding: 0; }
.slot {
  display: grid; grid-template-columns: 1fr auto auto; gap: 0.5rem 1rem; align-items: center;
  padding: 0.8rem 0; border-bottom: 1px solid var(--border);
}
.slot:last-child { border-bottom: none; }
.slot-when { display: flex; flex-direction: column; gap: 0.15rem; }
.slot-status details summary { cursor: pointer; list-style: none; }
.slot-status details summary::-webkit-details-marker { display: none; }
.slot-status details ul { margin: 0.4rem 0 0; padding-left: 1rem; max-width: 28rem; }
@media (max-width: 700px) { .slot { grid-template-columns: 1fr auto; } .slot-status { grid-column: 1 / -1; } }

/* -- attendance --------------------------------------------------------------------- */

.attendance-tools { margin-bottom: 0.75rem; }
.attendance-table td { vertical-align: middle; }
.attendance-table input[type=text] { padding: 0.4rem 0.6rem; font-size: 0.9rem; }
.segmented {
  display: inline-flex; border: 1px solid var(--border-strong); border-radius: 10px; overflow: hidden;
  background: var(--surface);
}
.segmented label { position: relative; cursor: pointer; }
.segmented label + label { border-left: 1px solid var(--border); }
.segmented input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.segmented span { display: block; padding: 0.4rem 0.75rem; font-size: 0.85rem; font-weight: 600; color: var(--muted); white-space: nowrap; }
.segmented label:hover span { background: var(--surface-2); color: var(--ink); }
.segmented input:focus-visible + span { box-shadow: inset var(--ring); }
.segmented .seg-present input:checked + span { background: var(--success-soft); color: var(--success); }
.segmented .seg-late input:checked + span { background: var(--warning-soft); color: var(--warning); }
.segmented .seg-absent input:checked + span { background: var(--danger-soft); color: var(--danger); }
.segmented .seg-excused input:checked + span { background: #eef1f6; color: var(--ink); }

.qr-page { max-width: 640px; margin: 0 auto; text-align: center; }
.qr-instructions { font-size: 1.15rem; color: var(--muted); }
.qr-code { display: inline-block; background: #fff; padding: 1rem; border-radius: var(--radius); box-shadow: var(--shadow-lg); margin: 1rem 0; }
.qr-code svg { width: min(420px, 80vw); height: auto; display: block; }
.qr-count { font-size: 1.4rem; margin: 0.5rem 0; }
.check-in-card { max-width: 480px; margin: 2rem auto; text-align: center; padding: 2rem 1.5rem; }
.check-in-icon {
  width: 3.5rem; height: 3.5rem; margin: 0 auto 1rem; border-radius: 50%; display: grid; place-items: center;
  font-size: 1.8rem; font-weight: 800;
}
.check-in-card.ok .check-in-icon { background: var(--success-soft); color: var(--success); }
.check-in-card.failed .check-in-icon { background: var(--danger-soft); color: var(--danger); }
.check-in-card h1 { font-size: 1.4rem; }

/* -- phones ------------------------------------------------------------------------- */

@media (max-width: 700px) {
  .topbar { gap: 0.4rem 1rem; padding: 0.6rem 1rem 0.3rem; position: relative; }
  .nav {
    order: 3; flex: 1 0 100%; flex-wrap: nowrap; overflow-x: auto; gap: 0.15rem;
    padding-bottom: 0.35rem; scrollbar-width: none; margin: 0 -0.5rem;
  }
  .nav a { white-space: nowrap; padding: 0.35rem 0.6rem; }
  .user-menu { margin-left: auto; gap: 0.5rem; }
  .user-menu > a[title] { display: none; }
  .container { padding: 1.25rem 1rem 2.5rem; }
  .card { padding: 1.1rem 1.1rem; }
  h1 { font-size: 1.5rem; }
  .home-hero { padding: 1.5rem 1.25rem; }
  .home-hero h1 { font-size: 1.6rem; }
  .fc .fc-toolbar-title { font-size: 1.05rem; }
  .fc .fc-button { padding: 0.3rem 0.5rem; font-size: 0.8rem; }
  #calendar { padding: 0.5rem; }
  .auth-page .auth-card { padding: 1.75rem 1.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* OAuth consent */
label.oauth-write { display: flex; gap: 0.6rem; align-items: flex-start; padding: 0.75rem 0.9rem; border: 1px solid var(--border); border-radius: 10px; font-weight: 400; }
label.oauth-write input { margin: 0.2rem 0 0; flex: none; }
.connected-apps { list-style: none; margin: 1rem 0 0; padding: 0; }
.connected-apps li { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 0.6rem 0; border-top: 1px solid var(--border); }

/* Public demo (DEMO_MODE) */
.demo-banner {
  margin: 0; padding: 0.5rem 1rem; text-align: center; font-size: 0.85rem;
  background: var(--warning-soft); color: var(--warning); border-bottom: 1px solid var(--warning-line);
}
.auth-page .demo-banner { position: relative; z-index: 2; }
.demo-accounts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.6rem; margin: 1rem 0 0.75rem; }
.demo-accounts form { margin: 0; }
.demo-accounts .button { width: 100%; }