/* Interview Slots — design system
   One accent, neutral grays, 8px spacing scale, soft 1px borders, light/dark via tokens.
   No external fonts (strict CSP). Everything here is served from /public. */

/* ---------- Tokens ---------- */
:root {
  color-scheme: light dark;

  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f1f3f6;
  --surface-3: #e9ecf1;
  --border: #e3e6eb;
  --border-strong: #cfd4dc;
  --text: #0f172a;
  --text-2: #334155;
  --muted: #64748b;

  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-text: #ffffff;
  --accent-soft: rgba(37, 99, 235, 0.09);
  --accent-soft-2: rgba(37, 99, 235, 0.16);
  --accent-border: rgba(37, 99, 235, 0.45);

  --ok: #16a34a;
  --ok-soft: rgba(22, 163, 74, 0.11);
  --warn: #d97706;
  --warn-soft: rgba(217, 119, 6, 0.12);
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --danger-soft: rgba(220, 38, 38, 0.1);

  --radius: 10px;
  --radius-sm: 8px;
  --radius-lg: 12px;
  --radius-pill: 999px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 1px 3px rgba(16, 24, 40, 0.06);
  --shadow-lg: 0 8px 24px rgba(16, 24, 40, 0.08), 0 2px 6px rgba(16, 24, 40, 0.05);
  --ring: 0 0 0 3px rgba(37, 99, 235, 0.35);

  --font: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  --topbar-h: 56px;
  --t: 150ms cubic-bezier(0.2, 0, 0, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f17;
    --surface: #121826;
    --surface-2: #192031;
    --surface-3: #1f2839;
    --border: #242d3e;
    --border-strong: #344056;
    --text: #e7eaf0;
    --text-2: #c3c9d5;
    --muted: #8b95a8;

    --accent: #60a5fa;
    --accent-hover: #93c5fd;
    --accent-text: #0b1220;
    --accent-soft: rgba(96, 165, 250, 0.13);
    --accent-soft-2: rgba(96, 165, 250, 0.22);
    --accent-border: rgba(96, 165, 250, 0.5);

    --ok: #4ade80;
    --ok-soft: rgba(74, 222, 128, 0.14);
    --warn: #fbbf24;
    --warn-soft: rgba(251, 191, 36, 0.14);
    --danger: #f87171;
    --danger-hover: #fca5a5;
    --danger-soft: rgba(248, 113, 113, 0.14);

    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.45);
    --ring: 0 0 0 3px rgba(96, 165, 250, 0.4);
  }
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv11", "ss01", "tnum";
}
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3, h4 { font-weight: 600; letter-spacing: -0.01em; line-height: 1.25; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; }
img, svg { display: block; max-width: 100%; }
table { border-collapse: collapse; border-spacing: 0; }
ul, ol { margin: 0; padding-left: 20px; }
code, kbd, pre { font-family: var(--mono); }

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
::selection { background: var(--accent-soft-2); }

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

/* ---------- Shell ---------- */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 100;
  padding: var(--space-2) var(--space-3);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}
.skip-link:focus { top: var(--space-2); }

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  min-height: var(--topbar-h);
  padding: 0 var(--space-5);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
@supports not (background: color-mix(in srgb, red 50%, blue)) {
  .topbar { background: var(--surface); }
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  min-height: var(--topbar-h);
  color: var(--text);
  font-weight: 650;
  font-size: 15px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  flex: none;
}
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 var(--space-3);
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background var(--t), color var(--t);
}
.nav-link:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.nav-link.is-active { color: var(--text); background: var(--surface-3); }
.nav-logout { display: contents; }
.nav .btn { margin-left: var(--space-2); }

@media (max-width: 767px) {
  .topbar { padding: 0 var(--space-4); row-gap: 0; }
  .topbar .nav {
    flex: 1 0 100%;
    order: 10;
    flex-wrap: wrap;
    gap: 2px var(--space-1);
    margin: -6px 0 0;
    padding: 0 0 var(--space-2);
  }
  .topbar .nav-link { min-height: 32px; padding: 0 10px; font-size: 13.5px; }
  /* Guest topbar fits on one row: keep it inline */
  .topbar .nav.nav-guest { flex: 0 0 auto; order: 0; margin: 0; padding: 0; }
  .topbar .nav.nav-guest .nav-link { min-height: 36px; font-size: 14px; }
}

.container {
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-5) var(--space-8);
  flex: 1 0 auto;
}
.container-wide { max-width: 1200px; }
.container > * + * { margin-top: var(--space-4); }
.container > .page-header + *, .container > .week-nav + * { margin-top: 0; }
@media (max-width: 639px) {
  .container { padding: var(--space-5) var(--space-4) var(--space-7); }
}

.footer {
  padding: var(--space-5);
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

/* ---------- Toast ---------- */
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  font-size: 14px;
  font-weight: 500;
  transition: opacity 300ms ease, transform 300ms ease;
}
.toast-ok { border-left-color: var(--ok); }
.toast-err { border-left-color: var(--danger); }
.toast.is-leaving { opacity: 0; transform: translateY(-4px); }
.toast-text { flex: 1 1 auto; }
.toast-close {
  flex: none;
  margin: -4px -6px -4px auto;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  font-size: 18px;
  line-height: 1;
  transition: background var(--t), color var(--t);
}
.toast-close:hover { background: var(--surface-2); color: var(--text); }

/* ---------- Page header ---------- */
.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
  margin-bottom: var(--space-5);
}
.page-title { font-size: 22px; font-weight: 650; letter-spacing: -0.02em; }
.page-subtitle { margin-top: var(--space-1); color: var(--muted); font-size: 14px; }
.page-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }

/* ---------- Card ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: var(--space-5);
}
.card + .card { margin-top: var(--space-4); }
.card-title { font-size: 16px; font-weight: 600; margin-bottom: var(--space-4); }
@media (max-width: 639px) { .card { padding: var(--space-4); } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  user-select: none;
  transition: background var(--t), border-color var(--t), color var(--t), box-shadow var(--t), transform var(--t);
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(0.5px); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: 0.55; pointer-events: none; }

.btn-primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border-strong); box-shadow: var(--shadow); }
.btn-secondary:hover { background: var(--surface-2); }

.btn-danger { background: var(--surface); color: var(--danger); border-color: var(--border-strong); }
.btn-danger:hover { background: var(--danger-soft); border-color: var(--danger); }

.btn-ghost { background: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }

.btn-sm { min-height: 32px; padding: 0 10px; font-size: 13px; }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 22px;
  padding: 0 8px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid transparent;
}
.badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.9;
}
.badge-neutral { background: var(--surface-2); color: var(--muted); border-color: var(--border); }
.badge-open { background: var(--ok-soft); color: var(--ok); }
.badge-booked { background: var(--accent-soft); color: var(--accent); }
.badge-info { background: var(--accent-soft); color: var(--accent); }
.badge-info::before { display: none; }
.badge-warn { background: var(--warn-soft); color: var(--warn); }

/* ---------- Forms ---------- */
.form { display: flex; flex-direction: column; gap: var(--space-4); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-4); }
.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding-top: var(--space-1);
}
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.label { font-size: 13px; font-weight: 600; color: var(--text-2); }
.input {
  width: 100%;
  min-height: 40px;
  padding: 0 12px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 15px;
  box-shadow: inset 0 1px 1px rgba(16, 24, 40, 0.03);
  transition: border-color var(--t), box-shadow var(--t);
}
.input::placeholder { color: var(--muted); opacity: 0.8; }
.input:hover { border-color: color-mix(in srgb, var(--border-strong), var(--muted) 40%); }
.input:focus-visible { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
.input[aria-invalid="true"] { border-color: var(--danger); }
.input:disabled { background: var(--surface-2); color: var(--muted); }
textarea.input { min-height: 96px; padding: 10px 12px; resize: vertical; }
.select {
  appearance: none;
  padding-right: 36px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none' stroke='%2364748b' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'><path d='M4 6l4 4 4-4'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
}
.hint { font-size: 13px; color: var(--muted); }
.error { font-size: 13px; color: var(--danger); font-weight: 500; }
input[type="checkbox"], input[type="radio"] { accent-color: var(--accent); width: 16px; height: 16px; }

.auth-card {
  width: 100%;
  max-width: 420px;
  margin: var(--space-6) auto 0;
  padding: var(--space-6);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.auth-card .page-header { margin-bottom: var(--space-5); }
.auth-card .page-title { font-size: 20px; }
.auth-card .btn-primary { width: 100%; }
.auth-card .form { gap: var(--space-4); }
/* When a page nests a .card inside .auth-card, the outer becomes a plain centering wrapper. */
.auth-card:has(> .card) { padding: 0; border: 0; background: transparent; box-shadow: none; }
.auth-card > .card { padding: var(--space-6); }
.auth-card .card-title { font-size: 20px; margin-bottom: var(--space-2); }
.auth-card .card > p, .auth-card > p { color: var(--muted); font-size: 14px; }
.auth-card form, .card > form:not(.form) { display: flex; flex-direction: column; gap: var(--space-4); margin-top: var(--space-4); }
.auth-card > p.hint, .auth-card > .card > p.hint { margin-top: var(--space-4); text-align: center; }
.auth-card ul.hint { margin-top: var(--space-1); padding-left: 18px; display: flex; flex-direction: column; gap: 2px; }
.auth-card .code-box { margin-top: var(--space-2); }
@media (max-width: 639px) {
  .auth-card { margin-top: var(--space-2); padding: var(--space-5); }
  .auth-card > .card { padding: var(--space-5); }
}

/* ---------- Code box (monospace URL + copy) ---------- */
.code-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 6px 6px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-2);
}
.code-box code, .code-box span, .code-box input {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  background: transparent;
  border: 0;
  padding: 0;
  font: inherit;
  color: inherit;
}
.code-box .btn { flex: none; }
.code-box .hint { flex: 1 0 100%; font-family: var(--font); padding: 4px 0 0; white-space: normal; }
.code-box a { flex: 1 1 auto; min-width: 0; padding: 4px 0 6px; overflow-wrap: anywhere; word-break: break-all; white-space: normal; line-height: 1.45; }

/* ---------- Utilities ---------- */
.stack { display: flex; flex-direction: column; gap: var(--space-4); }
.stack-sm { gap: var(--space-2); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.kbd {
  display: inline-block;
  padding: 1px 6px;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-2);
}
.is-hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------- Empty state ---------- */
.empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-7) var(--space-5);
  text-align: center;
  background: var(--surface);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
}
.empty-title { font-size: 16px; font-weight: 600; }
.empty-body { color: var(--muted); font-size: 14px; max-width: 42ch; }
.empty .btn { margin-top: var(--space-2); }

/* ---------- Tables ---------- */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.table { width: 100%; font-size: 14px; }
.table th, .table td { padding: 10px 14px; text-align: left; vertical-align: middle; border-bottom: 1px solid var(--border); }
.table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover td { background: var(--surface-2); }
.table td .select { min-height: 34px; min-width: 140px; font-size: 14px; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
@media (max-width: 639px) {
  .table-wrap { overflow: visible; background: transparent; border: 0; box-shadow: none; }
  .table, .table tbody, .table tr, .table td { display: block; }
  .table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .table tr {
    margin-bottom: var(--space-3);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
  }
  .table tr:last-child { margin-bottom: 0; }
  .table tbody tr:hover td { background: transparent; }
  .table td {
    position: relative;
    min-height: 40px;
    padding: 9px 14px 9px 128px;
    border-bottom: 1px solid var(--border);
    overflow-wrap: anywhere;
  }
  .table td::before {
    content: attr(data-label);
    position: absolute;
    left: 14px;
    top: 11px;
    width: 104px;
    font-size: 11.5px;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--muted);
  }
  .table td:not([data-label]) { padding-left: 14px; }
  .table td:not([data-label])::before { display: none; }
  .card:has(> .table-wrap) { padding: 0; border: 0; background: transparent; box-shadow: none; }
  .card:has(> .table-wrap) > .card-title { padding: 0 var(--space-1); }
  .table td:first-child { font-weight: 600; }
  .table tbody tr:last-child td:last-child, .table td:last-child { border-bottom: 0; }
  .table td.num, .table td .num { text-align: left; }
  .table td .cluster { min-width: 0; }
  .table td .select { min-width: 0; width: 100%; }
}

/* ---------- Availability: week nav + cap meter ---------- */
.week-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  margin-bottom: var(--space-4);
}
.week-nav .week-title, .week-nav h2 { font-size: 17px; font-weight: 600; margin: 0 var(--space-1); }
.week-nav .page-actions, .week-nav .week-actions { margin-left: auto; display: flex; flex-wrap: wrap; gap: var(--space-2); }
.week-nav .btn-icon { width: 36px; padding: 0; }
.cap-meter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  transition: background var(--t), color var(--t), border-color var(--t);
}
.cap-meter::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
}
.cap-meter.is-full { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.cap-meter.is-full::before { background: var(--accent-text); }
@media (max-width: 639px) {
  .week-nav { row-gap: var(--space-2); }
  .week-nav .week-title, .week-nav h2 { order: -1; flex-basis: 100%; margin: 0; font-size: 18px; }
  .week-nav .btn { order: 0; }
  .week-nav .cap-meter { order: 1; margin-left: auto; }
  .week-nav .page-actions, .week-nav .week-actions, .week-nav form { order: 2; margin-left: 0; flex-basis: 100%; }
  .week-nav form .btn { width: 100%; }
}

/* ---------- Availability: week grid ---------- */
.week-grid {
  width: 100%;
  table-layout: fixed;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  font-size: 13px;
}
.week-grid-wrap {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.week-grid-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.week-grid-wrap > .table-wrap { border: 0; border-radius: 0; box-shadow: none; }
.week-grid-wrap::before, .week-grid-wrap::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 44px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--t);
  z-index: 3;
}
.week-grid-wrap::before { left: 0; background: linear-gradient(to right, var(--surface), transparent); }
.week-grid-wrap::after { right: 0; background: linear-gradient(to left, var(--surface), transparent); }
.week-grid-wrap.is-scrollable:not(.is-scroll-start)::before { opacity: 0.9; }
.week-grid-wrap.is-scrollable:not(.is-scroll-end)::after { opacity: 0.9; }
.table-wrap > .week-grid, .week-grid-wrap .week-grid { border: 0; box-shadow: none; border-radius: 0; }
.week-grid th, .week-grid td { border-bottom: 1px solid var(--border); border-right: 1px solid var(--border); }
.week-grid th:last-child, .week-grid td:last-child { border-right: 0; }
.week-grid tbody tr:last-child th, .week-grid tbody tr:last-child td { border-bottom: 0; }
.week-grid thead th {
  padding: 10px 8px;
  background: var(--surface-2);
  color: var(--text-2);
  font-weight: 600;
  text-align: center;
  line-height: 1.3;
}
.week-grid thead th .day-name, .week-grid thead th strong { display: block; font-size: 13px; font-weight: 600; color: var(--text); }
.week-grid thead th .day-date, .week-grid thead th small, .week-grid thead th span { display: block; font-size: 12px; font-weight: 500; color: var(--muted); }
.week-grid thead th.is-today .day-name, .week-grid thead th.is-today strong { color: var(--accent); }
.week-grid col.hour-col, .week-grid thead th.hour-col { width: 72px; }
.week-grid tbody th, .week-grid td.hour-label, .week-grid td.hour {
  width: 72px;
  padding: 0 10px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}
td.slot-cell { padding: 3px; height: 56px; vertical-align: top; }
td.slot-cell form { display: block; height: 100%; margin: 0; }

.slot {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 1px;
  width: 100%;
  height: 100%;
  min-height: 50px;
  padding: 6px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.3;
  text-align: left;
  overflow: hidden;
  transition: background var(--t), border-color var(--t), color var(--t);
}
.slot-time { font-weight: 600; font-size: 12px; white-space: nowrap; }
.slot-meta {
  display: block;
  font-size: 11.5px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.slot-label { font-size: 12px; }

.slot-open {
  border: 1px dashed var(--border-strong);
  color: var(--muted);
  cursor: pointer;
}
.slot-open:hover, .slot-open:focus-visible { background: var(--accent-soft); border-color: var(--accent-border); color: var(--accent); }
.slot-open::after { content: "+"; font-size: 16px; font-weight: 500; opacity: 0; transition: opacity var(--t); }
.slot-open:hover::after { opacity: 1; }

.slot-offered {
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  cursor: pointer;
}
.slot-offered:hover, .slot-offered:focus-visible { background: var(--danger-soft); border-color: var(--danger); color: var(--danger); }
.slot-offered:hover .slot-meta, .slot-offered:hover .slot-label { color: inherit; }
.slot-offered::after {
  content: "\00d7";
  position: absolute;
  top: 2px;
  right: 7px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  opacity: 0;
  transition: opacity var(--t);
}
.slot-offered:hover::after, .slot-offered:focus-visible::after { opacity: 1; }
@media (hover: none), (max-width: 639px) { .slot-offered::after { opacity: 0.6; } }

.slot-booked {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
  cursor: default;
}
.slot-booked .slot-meta { color: var(--accent-text); opacity: 0.85; }

.slot-past {
  color: var(--muted);
  background: repeating-linear-gradient(135deg, transparent 0 6px, var(--surface-2) 6px 8px);
  border-color: transparent;
  cursor: default;
  opacity: 0.8;
}
.slot-past.slot-offered, .slot-past.slot-booked { background: var(--surface-3); border-color: var(--border); color: var(--muted); }
.slot-past.slot-booked .slot-meta { color: var(--muted); }

.slot-disabled, .slot-open:disabled {
  border: 1px dashed var(--border);
  color: var(--muted);
  background: var(--surface-2);
  cursor: not-allowed;
  opacity: 0.6;
}
.slot-disabled:hover, .slot-open:disabled:hover { background: var(--surface-2); border-color: var(--border); color: var(--muted); }
.slot-disabled:hover::after, .slot-open:disabled:hover::after { opacity: 0; }

/* Mobile: the grid scrolls horizontally with a sticky hour column, thumb-friendly cells. */
@media (max-width: 639px) {
  .week-grid { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; table-layout: auto; }
  .table-wrap > .week-grid, .week-grid-wrap .week-grid { display: table; overflow: visible; }
  .week-grid thead th, .week-grid td.slot-cell { min-width: 112px; width: 112px; }
  .week-grid thead th.hour-col, .week-grid tbody th, .week-grid td.hour-label, .week-grid td.hour {
    position: sticky;
    left: 0;
    z-index: 2;
    min-width: 60px;
    width: 60px;
    box-shadow: 1px 0 0 var(--border);
  }
  td.slot-cell { height: 60px; }
  .slot { min-height: 54px; }
}

/* ---------- Schedule list ---------- */
.day-group { margin-bottom: var(--space-5); }
.day-title {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  padding: 0 var(--space-1);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
}
.day-title .muted { font-weight: 500; font-size: 13px; }
.slot-list {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.slot-row {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr) minmax(0, auto) auto;
  align-items: center;
  gap: var(--space-3) var(--space-4);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  transition: background var(--t);
}
.slot-row:last-child { border-bottom: 0; }
.slot-row:hover { background: var(--surface-2); }
.slot-row-time { font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }
.slot-row-owner { min-width: 0; }
.slot-row-owner .slot-meta { white-space: normal; }
.slot-row-status { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-1) var(--space-2); min-width: 0; }
.slot-row-status .slot-meta { white-space: normal; overflow: visible; text-overflow: clip; }
.slot-row-actions { display: flex; align-items: center; gap: var(--space-2); justify-content: flex-end; }
.slot-row-actions form { margin: 0; }
.slot-row.is-booked .slot-row-time { color: var(--accent); }
.slot-row.is-past { opacity: 0.6; }
@media (max-width: 639px) {
  .slot-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, auto);
    grid-template-areas: "time status" "owner owner" "actions actions";
    gap: var(--space-1) var(--space-3);
    padding: 12px 14px;
  }
  .slot-row-time { grid-area: time; }
  .slot-row-status { grid-area: status; justify-content: flex-end; }
  .slot-row-status .slot-meta { flex-basis: 100%; text-align: right; }
  .slot-row-owner { grid-area: owner; }
  .slot-row-actions { grid-area: actions; justify-content: flex-start; margin-top: var(--space-2); }
  .slot-row-actions:empty { display: none; }
}

/* ---------- Landing ---------- */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-7) 0 var(--space-6);
}
.hero-mark { width: 56px; height: 56px; border-radius: 16px; margin-bottom: var(--space-5); box-shadow: var(--shadow); }
.hero-title {
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.hero-lede {
  max-width: 560px;
  margin-top: var(--space-4);
  font-size: 17px;
  line-height: 1.55;
  color: var(--muted);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
}
.hero-actions .btn { min-height: 42px; padding: 0 18px; font-size: 15px; }
.hero-note { margin-top: var(--space-3); font-size: 13px; color: var(--muted); }
@media (max-width: 639px) {
  .hero { padding: var(--space-6) 0 var(--space-5); }
  .hero-actions { flex-direction: column; align-self: stretch; }
  .hero-actions .btn { width: 100%; }
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-5);
}
.role-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: var(--space-5);
}
.role-card .role-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: var(--space-3);
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
}
.role-card h2, .role-card .role-title { font-size: 16px; font-weight: 600; }
.role-card ul { margin-top: var(--space-2); padding-left: 0; list-style: none; display: flex; flex-direction: column; gap: 6px; }
.role-card li { position: relative; padding-left: 18px; font-size: 14px; color: var(--text-2); }
.role-card li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}
@media (max-width: 767px) { .role-grid { grid-template-columns: 1fr; } }

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}
.steps-title { grid-column: 1 / -1; font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.step { display: flex; gap: var(--space-3); align-items: flex-start; }
.step-num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  font-size: 12px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  color: var(--text-2);
}
.step h3, .step-title { font-size: 14px; font-weight: 600; }
.step p { margin-top: 2px; font-size: 13px; color: var(--muted); }
@media (max-width: 767px) { .steps { grid-template-columns: 1fr; gap: var(--space-4); } }

/* ---------- Error / misc ---------- */
.container > .empty:only-child { margin-top: var(--space-6); }
.divider { border: 0; border-top: 1px solid var(--border); margin: var(--space-5) 0; }
.section-title { font-size: 13px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--space-2); }