/* ---------------------------------------------------------------------------
   aanwezig.nu — design system
   Eén set variabelen, twee invullingen. Het thema volgt het systeem, tenzij de
   bezoeker zelf kiest; die keuze wordt onthouden op het toestel zelf.
   De accentkleur komt uit de gegevens van de klant en wordt door de server in
   :root gezet (zie App.razor).
--------------------------------------------------------------------------- */

:root {
  /* Accent: standaardwaarde, wordt per klant overschreven */
  --brand: #6366f1;
  --brand-ink: #ffffff;
  --brand-soft: color-mix(in srgb, var(--brand) 14%, transparent);
  --brand-line: color-mix(in srgb, var(--brand) 40%, transparent);

  --ok: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
  --info: #0891b2;

  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
  --shadow: 0 10px 30px -12px rgba(15, 23, 42, .25);
  --shadow-lg: 0 30px 60px -25px rgba(15, 23, 42, .35);

  --font: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Licht thema */
  --bg: #f6f7fb;
  --bg-elevated: #ffffff;
  --bg-sunken: #eceef6;
  --ink: #111827;
  --ink-soft: #4b5563;
  --ink-muted: #6b7280;
  --line: #e2e5ef;
  --line-strong: #cbd2e1;
  --field: #ffffff;
  --overlay: rgba(15, 23, 42, .45);
  color-scheme: light;
}

/* Donker thema: eerst wanneer het systeem erom vraagt, daarna wanneer de bezoeker het zelf kiest. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0f1d;
    --bg-elevated: #131a2b;
    --bg-sunken: #070b16;
    --ink: #f3f5fb;
    --ink-soft: #c2cade;
    --ink-muted: #8e99b5;
    --line: rgba(255, 255, 255, .10);
    --line-strong: rgba(255, 255, 255, .20);
    --field: rgba(255, 255, 255, .04);
    --overlay: rgba(2, 6, 23, .7);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
    --shadow: 0 16px 40px -18px rgba(0, 0, 0, .8);
    --shadow-lg: 0 34px 70px -28px rgba(0, 0, 0, .9);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0a0f1d;
  --bg-elevated: #131a2b;
  --bg-sunken: #070b16;
  --ink: #f3f5fb;
  --ink-soft: #c2cade;
  --ink-muted: #8e99b5;
  --line: rgba(255, 255, 255, .10);
  --line-strong: rgba(255, 255, 255, .20);
  --field: rgba(255, 255, 255, .04);
  --overlay: rgba(2, 6, 23, .7);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow: 0 16px 40px -18px rgba(0, 0, 0, .8);
  --shadow-lg: 0 34px 70px -28px rgba(0, 0, 0, .9);
  color-scheme: dark;
}

/* --- basis --- */
*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3, h4 { margin: 0 0 .4em; line-height: 1.15; letter-spacing: -.02em; font-weight: 800; }
h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); }
h2 { font-size: clamp(1.25rem, 2.6vw, 1.6rem); }
h3 { font-size: 1.1rem; font-weight: 700; }
p { margin: 0 0 1em; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
small, .small { font-size: .82rem; }
.muted { color: var(--ink-muted); }
.soft { color: var(--ink-soft); }

/* --- layout --- */
.app-shell { display: flex; flex-direction: column; min-height: 100dvh; }

.app-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 14px;
  padding: 12px clamp(14px, 3vw, 28px);
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.app-main { flex: 1; width: 100%; max-width: 1180px; margin: 0 auto; padding: clamp(18px, 3vw, 34px) clamp(14px, 3vw, 28px) 64px; }

.app-footer {
  border-top: 1px solid var(--line);
  padding: 18px clamp(14px, 3vw, 28px);
  color: var(--ink-muted);
  font-size: .8rem;
  display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 11px; flex: none;
  background: linear-gradient(135deg, var(--brand), color-mix(in srgb, var(--brand) 45%, #22d3ee));
  display: grid; place-items: center; color: var(--brand-ink);
  box-shadow: 0 8px 18px -8px var(--brand);
  overflow: hidden;
}
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.brand-mark svg { width: 20px; height: 20px; }
.brand-sub { color: var(--ink-muted); font-weight: 500; }

.spacer { flex: 1; }

/* --- kaarten --- */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: clamp(18px, 3vw, 28px);
}
.card + .card { margin-top: 18px; }
.card-title { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }

.grid { display: grid; gap: 16px; }
@media (min-width: 720px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

/* --- knoppen --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: var(--radius);
  border: 1px solid transparent; cursor: pointer;
  font: inherit; font-weight: 600; font-size: .93rem;
  background: var(--brand); color: var(--brand-ink);
  transition: transform .12s ease, filter .18s ease, background .18s ease, border-color .18s ease;
  text-decoration: none;
}
.btn:hover { filter: brightness(1.06); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .5; cursor: not-allowed; filter: none; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { background: var(--bg-sunken); }
.btn-soft { background: var(--brand-soft); color: var(--brand); border-color: var(--brand-line); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-lg { padding: 15px 26px; font-size: 1rem; border-radius: var(--radius-lg); }
.btn-block { width: 100%; }
.btn-icon { padding: 9px; border-radius: 11px; background: transparent; color: var(--ink-soft); border-color: var(--line); }
.btn-icon:hover { background: var(--bg-sunken); color: var(--ink); }
.btn-icon svg { width: 18px; height: 18px; }

/* --- formulieren --- */
label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: 6px; color: var(--ink-soft); }

/* Blazor rendert een <InputText> zonder type-attribuut, vandaar de brede selector met
   uitzonderingen in plaats van een opsomming van types. */
input:not([type=checkbox]):not([type=radio]):not([type=submit]):not([type=button]):not([type=hidden]),
select, textarea {
  width: 100%; padding: 11px 13px;
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  background: var(--field); color: var(--ink);
  font: inherit; font-size: .95rem; outline: none;
  transition: border-color .18s ease, box-shadow .18s ease;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--brand-soft);
}
.field + .field { margin-top: 14px; }
.validation-message, .field-error { color: var(--danger); font-size: .82rem; margin-top: 5px; }

/* --- statuslabels --- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  font-size: .76rem; font-weight: 700; letter-spacing: .01em;
  border: 1px solid var(--line-strong); color: var(--ink-soft); background: var(--bg-sunken);
  white-space: nowrap;
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 35%, transparent); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.badge-warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 35%, transparent); background: color-mix(in srgb, var(--warn) 12%, transparent); }
.badge-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, transparent); background: color-mix(in srgb, var(--danger) 12%, transparent); }
.badge-info { color: var(--info); border-color: color-mix(in srgb, var(--info) 35%, transparent); background: color-mix(in srgb, var(--info) 12%, transparent); }
.badge-brand { color: var(--brand); border-color: var(--brand-line); background: var(--brand-soft); }

/* --- tabellen --- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--bg-elevated); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); }
th { font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-muted); font-weight: 700; background: var(--bg-sunken); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: color-mix(in srgb, var(--brand) 4%, transparent); }

/* --- meldingen --- */
.notice { display: flex; gap: 12px; padding: 14px 16px; border-radius: var(--radius); border: 1px solid var(--line-strong); background: var(--bg-sunken); }
.notice-ok { border-color: color-mix(in srgb, var(--ok) 35%, transparent); background: color-mix(in srgb, var(--ok) 10%, transparent); }
.notice-warn { border-color: color-mix(in srgb, var(--warn) 35%, transparent); background: color-mix(in srgb, var(--warn) 10%, transparent); }
.notice-danger { border-color: color-mix(in srgb, var(--danger) 35%, transparent); background: color-mix(in srgb, var(--danger) 10%, transparent); }

/* --- hulpklassen --- */
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.right { margin-left: auto; }
.center { text-align: center; }
.hidden { display: none !important; }

/* --- foutpagina van Blazor --- */
#blazor-error-ui {
  position: fixed; inset: auto 0 0 0; z-index: 1000;
  display: none; align-items: center; gap: 12px;
  padding: 14px 20px;
  background: var(--danger); color: #fff;
  box-shadow: var(--shadow-lg);
}
#blazor-error-ui .dismiss { margin-left: auto; cursor: pointer; font-size: 1.3rem; line-height: 1; }

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

/* --- handtekening --- */
.signature { --signature-ink: var(--ink); margin: 8px 0 4px; }
.signature-frame {
  position: relative;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--field);
  height: clamp(170px, 30vh, 260px);
  overflow: hidden;
  touch-action: none;
}
.signature-frame canvas { width: 100%; height: 100%; display: block; touch-action: none; cursor: crosshair; }
.signature-hint {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  color: var(--ink-muted); pointer-events: none; font-size: .9rem;
}
.signature-hint svg { width: 42px; height: 42px; opacity: .5; }
.signature-baseline {
  position: absolute; left: 8%; right: 8%; bottom: 26%;
  border-bottom: 1px solid var(--line-strong); pointer-events: none;
}
.signature-actions { display: flex; align-items: center; gap: 12px; margin-top: 10px; flex-wrap: wrap; }
.signature-error { display: none; }
.signature.signature-missing .signature-frame { border-color: var(--danger); border-style: solid; }
.signature.signature-missing .signature-error { display: block; }
.signature.has-signature .signature-frame { border-style: solid; border-color: var(--brand-line); }

.btn-sm { padding: 8px 14px; font-size: .85rem; border-radius: 11px; }

/* --- statusbord van de lesgever --- */
.board-head { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-start; margin-bottom: 18px; }
.board-stats { display: flex; gap: 10px; flex-wrap: wrap; }
.stat {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-elevated);
  padding: 10px 16px; min-width: 104px;
}
.stat b { display: block; font-size: 1.5rem; line-height: 1.2; }
.stat span { font-size: .76rem; color: var(--ink-muted); text-transform: uppercase; letter-spacing: .05em; }

.people { display: grid; gap: 10px; }
.person {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--bg-elevated); text-decoration: none; color: inherit;
}
.person:hover { text-decoration: none; }
.person-name { font-weight: 600; }
.person-sub { font-size: .8rem; color: var(--ink-muted); }
.person .right { display: flex; align-items: center; gap: 10px; }
.person-signed { border-color: color-mix(in srgb, var(--ok) 35%, transparent); background: color-mix(in srgb, var(--ok) 7%, transparent); }
.person-action { border-color: var(--brand-line); background: var(--brand-soft); }

.avatar {
  width: 38px; height: 38px; border-radius: 50%; flex: none;
  display: grid; place-items: center; font-weight: 700; font-size: .85rem;
  background: var(--bg-sunken); color: var(--ink-soft); border: 1px solid var(--line);
}

.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); animation: livepulse 2s infinite; }
@keyframes livepulse { 0%,100% { opacity: 1 } 50% { opacity: .35 } }

/* --- publieke ondertekenpagina --- */
.sign-page { max-width: 560px; margin: 0 auto; }
.sign-meta { display: grid; gap: 6px; margin: 16px 0 22px; font-size: .92rem; }
.sign-meta div { display: flex; gap: 10px; }
.sign-meta dt, .sign-meta .k { color: var(--ink-muted); min-width: 92px; }
.big-check {
  width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 14px;
  background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); font-size: 2rem;
}

.person-absent { opacity: .72; border-style: dashed; }

/* --- beheerportaal --- */
.admin-nav {
  position: sticky; top: 59px; z-index: 15;
  background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}
.admin-nav-inner {
  display: flex; gap: 4px; align-items: center;
  max-width: 1180px; margin: 0 auto; padding: 0 clamp(8px, 3vw, 22px);
}
.admin-nav a {
  display: block; padding: 12px 14px; white-space: nowrap;
  color: var(--ink-soft); font-weight: 600; font-size: .9rem;
  border-bottom: 2px solid transparent;
}
.admin-nav a:hover { color: var(--ink); text-decoration: none; }
.admin-nav a.active { color: var(--brand); border-bottom-color: var(--brand); }

.page-head { display: flex; align-items: flex-start; gap: 14px; flex-wrap: wrap; margin-bottom: 20px; }
.page-head h1 { margin: 0 0 2px; }

.picker {
  max-height: 320px; overflow-y: auto;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-sunken);
  padding: 6px;
}
.picker label {
  display: flex; align-items: center; gap: 10px; margin: 0;
  padding: 8px 10px; border-radius: 10px; cursor: pointer;
  font-weight: 500; color: var(--ink); font-size: .9rem;
}
.picker label:hover { background: var(--bg-elevated); }
.picker input[type=checkbox] { width: 17px; height: 17px; accent-color: var(--brand); flex: none; }
.picker .sub { color: var(--ink-muted); font-size: .8rem; }

.switch-row {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 0; border-top: 1px solid var(--line);
}
.switch-row:first-of-type { border-top: 0; }
.switch-row input[type=checkbox] { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--brand); flex: none; }
.switch-row label { margin: 0; font-weight: 600; color: var(--ink); }
.switch-row .hint { font-size: .82rem; color: var(--ink-muted); font-weight: 400; }

.inherited { font-size: .78rem; color: var(--ink-muted); margin-top: 5px; }

.empty { text-align: center; padding: 40px 20px; color: var(--ink-muted); }
.empty svg { width: 40px; height: 40px; opacity: .4; margin-bottom: 10px; }

@media (max-width: 640px) { .hide-small { display: none; } }