/* Schriften lokal, damit der Pi auch ohne Internet (Hotspot) korrekt aussieht. */
@font-face { font-family: "IBM Plex Sans"; font-weight: 400; font-display: swap; src: url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 500; font-display: swap; src: url("fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 600; font-display: swap; src: url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 700; font-display: swap; src: url("fonts/ibm-plex-sans-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-weight: 400; font-display: swap; src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-weight: 500; font-display: swap; src: url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); }

:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --ink: #1a1a1a;
  --muted: #5f6368;
  --line: #d9d9d4;
  --field: #b9b9b2;
  --accent: #0f6b57;
  --accent-dark: #0a5243;
  --accent-soft: #e2efeb;
  --danger: #a1251b;
  --danger-soft: #fbeae8;
  --warn: #6f4700;
  --warn-soft: #fff3d6;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body { min-height: 100vh; margin: 0; display: flex; flex-direction: column; color: var(--ink); background: var(--bg); font-family: var(--sans); font-size: 16px; line-height: 1.5; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
button, select { cursor: pointer; }
h1, h2, h3, p { margin-top: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.container { width: min(1216px, 100% - 64px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.mono { font-family: var(--mono); }

/* Kopfzeile */
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px); }
.header-inner { min-height: 68px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 32px; padding-block: 10px; }
.brand { display: inline-flex; align-items: baseline; gap: 8px; font-size: 1.12rem; font-weight: 600; letter-spacing: -.01em; text-decoration: none; }
.brand-section { font-family: var(--mono); font-size: .8rem; font-weight: 400; color: var(--muted); }
.catalog-search { flex: 0 1 400px; display: grid; gap: 10px; padding-bottom: 6px; }
.search-field { display: flex; align-items: center; gap: 10px; min-height: 52px; border-bottom: 3px solid var(--ink); }
.search-field input { flex: 1; min-width: 0; min-height: 0; padding: 0; border: 0; border-radius: 0; outline: 0; background: transparent; font-size: 1.2rem; font-weight: 500; }
.search-field input:focus { box-shadow: none; }
.search-field input::placeholder { color: var(--muted); font-weight: 400; }
.search-field button { display: grid; place-items: center; width: 40px; height: 40px; padding: 0; border: 0; background: none; color: var(--ink); }
.search-field:focus-within { border-bottom-color: var(--accent); }
.site-nav { margin-left: auto; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 22px; font-size: .92rem; font-weight: 500; }
.site-nav a, .link-button { padding: 8px 0; border: 0; background: none; text-decoration: none; font-weight: 500; }
.site-nav a:hover, .link-button:hover { color: var(--accent); }
.site-nav .button { padding: 0 16px; }
.site-nav .button.primary, .site-nav .button.primary:hover { color: #fff; }
.site-nav a[aria-current="page"] { color: var(--accent); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 7px; }
.nav-divider { width: 1px; height: 20px; background: var(--line); }
.user-link { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); }
.inline-form { display: inline; margin: 0; }
.nav-count { display: inline-grid; min-width: 20px; height: 20px; place-items: center; margin-left: 4px; padding: 0 6px; border-radius: 10px; color: #fff; background: var(--danger); font-family: var(--mono); font-size: .72rem; font-weight: 500; vertical-align: 1px; }

/* Grundgerüst */
.main-content { flex: 1; padding-block: 44px 80px; }
.site-footer { border-top: 1px solid var(--line); padding: 22px 0; color: var(--muted); background: var(--surface); font-family: var(--mono); font-size: .8rem; }

/* Seitenkopf: großer Titel über einer kräftigen Linie */
.page-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px 32px; margin-bottom: 32px; padding-bottom: 20px; border-bottom: 3px solid var(--ink); }
.page-head h1 { margin: 0; font-size: clamp(2.5rem, 6.5vw, 4.6rem); font-weight: 700; line-height: .95; letter-spacing: -.04em; text-wrap: balance; }
.page-head .page-meta { margin: 0; font-family: var(--mono); font-size: .85rem; color: var(--muted); }
.eyebrow { margin: 0 0 10px; font-family: var(--mono); font-size: .78rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.big-count { font-family: var(--mono); font-weight: 500; color: var(--accent); }
.back-link { display: inline-flex; margin-bottom: 24px; font-family: var(--mono); font-size: .85rem; color: var(--muted); text-decoration: none; }
.back-link:hover { color: var(--accent); }

/* Buttons */
.button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; gap: 8px; padding: 0 18px; border: 1px solid transparent; border-radius: 3px; background: none; font-weight: 500; text-decoration: none; white-space: nowrap; }
.button.primary { color: #fff; background: var(--accent); }
.button.primary:hover { background: var(--accent-dark); }
.button.secondary { border-color: var(--ink); color: var(--ink); background: var(--surface); }
.button.secondary:hover { color: #fff; background: var(--ink); }
.button.ghost { padding-inline: 4px; color: var(--muted); }
.button.ghost:hover { color: var(--ink); }
.button.danger { border-color: #e2b4af; color: var(--danger); background: var(--surface); }
.button.danger:hover { color: #fff; border-color: var(--danger); background: var(--danger); }
.button.wide { width: 100%; }

/* Meldungen */
.flash-list { display: grid; gap: 8px; margin-bottom: 28px; }
.flash { padding: 12px 16px; border: 1px solid; border-radius: 3px; font-size: .95rem; }
.flash-success { border-color: #b7d8cf; color: #0b4f40; background: var(--accent-soft); }
.flash-error { border-color: #ebc2bd; color: #7d1b13; background: var(--danger-soft); }
.flash-warning { border-color: #ecd49b; color: var(--warn); background: var(--warn-soft); }

/* Rollen */
.role-badge { display: inline-flex; align-items: center; padding: 2px 7px; border-radius: 2px; font-family: var(--mono); font-size: .7rem; font-weight: 500; letter-spacing: .06em; text-transform: uppercase; color: #3c4a8f; background: #e9ecf8; }
.role-admin { color: #8a1f16; background: var(--danger-soft); }
.role-trainer { color: #0b4f40; background: var(--accent-soft); }
.role-gesperrt { color: var(--warn); background: var(--warn-soft); }

/* Katalog: Seitenleiste + Liste */
.with-sidebar { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 40px 56px; }
.filters { flex: 1 1 200px; max-width: 240px; display: grid; gap: 36px; }
.filter-group h2 { margin: 0 0 10px; font-family: var(--mono); font-size: .75rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.filter-group ul { display: grid; gap: 2px; margin: 0; padding: 0; list-style: none; }
.filter-link { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 38px; text-decoration: none; }
.filter-link:hover { color: var(--accent); }
.filter-link .count { font-family: var(--mono); font-size: .8rem; color: var(--muted); }
.filter-link[aria-current="true"] { color: var(--accent); font-weight: 600; }
.filter-link[aria-current="true"] .count { color: var(--accent); }
.content { flex: 999 1 560px; min-width: 0; }
.list-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 20px; margin: 0 0 12px; }
.list-toolbar .page-meta { margin: 0; }
.sort-field { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: .8rem; font-weight: 400; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.sort-field select { width: auto; min-height: 40px; padding: 6px 10px; font-family: var(--sans); font-size: .9rem; text-transform: none; letter-spacing: 0; color: var(--ink); }

/* Videozeilen (Katalog und Verwaltung) */
.video-list { margin: 0; padding: 0; border-bottom: 1px solid var(--line); list-style: none; }
.video-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; padding: 20px 0; border-top: 1px solid var(--line); }
.video-row > a { flex: 1 1 520px; min-width: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; text-decoration: none; }
.video-row > a:hover .row-title { color: var(--accent); }
.row-index { flex: 0 0 28px; font-family: var(--mono); font-size: .82rem; color: var(--muted); }
.row-thumb { position: relative; flex: 0 0 176px; aspect-ratio: 16 / 9; overflow: hidden; border-radius: 2px; background: #e6e6e1; }
.row-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.row-thumb .placeholder { position: absolute; inset: 0; display: grid; place-items: center; color: #a3a39c; }
.row-body { flex: 1 1 240px; min-width: 0; display: grid; gap: 3px; }
.row-topic { font-family: var(--mono); font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.row-title { font-size: 1.15rem; font-weight: 600; line-height: 1.3; letter-spacing: -.01em; }
.row-desc { color: var(--muted); font-size: .93rem; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.row-meta { flex: 0 0 auto; display: grid; justify-items: end; gap: 3px; font-family: var(--mono); }
.row-meta strong { font-size: .95rem; font-weight: 500; }
.row-meta span { font-size: .8rem; color: var(--muted); }
.row-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.row-actions form { margin: 0; }

.empty-state { padding: 56px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.empty-state h2 { margin-bottom: 6px; font-size: 1.4rem; letter-spacing: -.01em; }
.empty-state p { margin-bottom: 0; color: var(--muted); }
.empty-state .button { margin-top: 20px; }

/* Videoseite */
.player-shell { overflow: hidden; border-radius: 2px; background: #0b0b0b; }
.player-shell video { display: block; width: 100%; max-height: 72vh; aspect-ratio: 16 / 9; background: #000; }
.seek-controls { display: flex; justify-content: center; gap: 8px; padding: 10px; background: #161616; }
.seek-controls .button { min-height: 40px; border-color: #3a3a3a; color: #f2f2f2; background: transparent; font-family: var(--mono); font-size: .85rem; }
.seek-controls .button:hover { background: #2a2a2a; }
.detail-grid { display: flex; flex-wrap: wrap; gap: 32px 64px; margin-top: 36px; }
.detail-main { flex: 999 1 480px; min-width: 0; }
.detail-main h1 { margin: 0 0 18px; font-size: clamp(2rem, 4.5vw, 3.4rem); font-weight: 700; line-height: 1; letter-spacing: -.035em; text-wrap: balance; }
.description { max-width: 68ch; color: #3d4044; font-size: 1.05rem; white-space: pre-line; }
.detail-side { flex: 1 1 260px; }
.metadata { margin: 0; border-top: 3px solid var(--ink); }
.metadata div { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.metadata dt { font-family: var(--mono); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.metadata dd { margin: 0; font-weight: 600; text-align: right; }
.detail-side .button { margin-top: 20px; }

/* Formulare */
.form-panel { padding: clamp(22px, 4vw, 36px); border: 1px solid var(--line); border-radius: 3px; background: var(--surface); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.form-grid .full { grid-column: 1 / -1; }
.form-stack { display: grid; gap: 20px; }
label { display: grid; gap: 6px; font-size: .9rem; font-weight: 500; }
input, select, textarea { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid var(--field); border-radius: 3px; outline: 0; background: var(--surface); }
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(15, 107, 87, .15); }
small, .hint { color: var(--muted); font-size: .8rem; font-weight: 400; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.upload-field input { padding: 9px; border-style: dashed; background: var(--bg); }
.upload-field input::file-selector-button { margin-right: 14px; min-height: 34px; padding: 0 14px; border: 1px solid var(--ink); border-radius: 3px; background: var(--surface); font: inherit; font-weight: 500; cursor: pointer; }
.upload-field input::file-selector-button:hover { color: #fff; background: var(--ink); }
.automatic-data { display: flex; flex-wrap: wrap; gap: 6px 20px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 3px; background: var(--bg); font-family: var(--mono); font-size: .82rem; }
.automatic-data strong { width: 100%; font-family: var(--sans); font-size: .9rem; color: var(--accent); }
.checkbox-field { display: flex; align-items: center; gap: 10px; align-self: end; min-height: 44px; }
.checkbox-field input { width: 18px; min-height: 18px; accent-color: var(--accent); }
.choice-group { display: grid; gap: 8px; margin: 0; padding: 0; border: 0; }
.choice-group legend { margin-bottom: 8px; padding: 0; font-size: .9rem; font-weight: 500; }
.choice-card { display: flex; align-items: flex-start; gap: 12px; padding: 12px 14px; border: 1px solid var(--field); border-radius: 3px; cursor: pointer; }
.choice-card:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.choice-card input { width: 18px; min-height: 18px; margin-top: 3px; accent-color: var(--accent); }
.choice-card span { display: grid; gap: 1px; }

/* Anmelden, Registrieren, Konto: Titel links, Formular rechts */
.split { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 32px 72px; }
.split-intro { flex: 1 1 320px; }
.split-intro h1 { margin: 0 0 18px; font-size: clamp(2.8rem, 7vw, 5rem); font-weight: 700; line-height: .92; letter-spacing: -.045em; }
.split-intro p:not(.eyebrow) { max-width: 40ch; color: var(--muted); font-size: 1.05rem; }
.split .form-panel { flex: 1 1 360px; max-width: 480px; }
.auth-switch { margin: 22px 0 0; color: var(--muted); font-size: .95rem; }
.auth-switch a { color: var(--accent); font-weight: 600; }
code { padding: 1px 5px; border-radius: 2px; background: rgba(0, 0, 0, .06); font-family: var(--mono); font-size: .85em; }

/* Benutzerverwaltung */
.section-title { display: flex; align-items: center; gap: 12px; margin: 0 0 14px; font-size: 1.3rem; letter-spacing: -.015em; }
.section-block { margin-bottom: 48px; }
.request-block { padding: 20px 22px; border: 1px solid #ecd49b; border-radius: 3px; background: var(--warn-soft); }
.request-block .video-list, .request-block .user-row:first-child { border-color: #ecd49b; }
.user-list { margin: 0; padding: 0; border-bottom: 1px solid var(--line); list-style: none; }
.user-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; padding: 16px 0; border-top: 1px solid var(--line); }
.user-main { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; }
.user-name { font-size: 1.05rem; font-weight: 600; }
.user-date { font-family: var(--mono); font-size: .8rem; color: var(--muted); }

/* Fehlerseite */
.error-page { padding: 40px 0; }
.error-code { display: block; margin-bottom: 8px; font-family: var(--mono); font-size: clamp(4rem, 14vw, 9rem); font-weight: 500; line-height: 1; color: var(--accent); }
.error-page h1 { margin-bottom: 10px; font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -.03em; }
.error-page p { color: var(--muted); }

@media (max-width: 720px) {
  .container { width: calc(100% - 32px); }
  .main-content { padding-block: 28px 56px; }
  .site-nav { margin-left: 0; gap: 4px 16px; }
  .nav-divider, .user-link .role-badge { display: none; }
  .catalog-search { flex-basis: 100%; }
  .filters { max-width: none; gap: 20px; }
  .filter-group ul { display: flex; flex-wrap: wrap; gap: 6px; }
  .filter-link { min-height: 36px; padding: 0 12px; border: 1px solid var(--field); border-radius: 18px; }
  .filter-link[aria-current="true"] { border-color: var(--accent); background: var(--accent-soft); }
  .row-index { display: none; }
  .row-thumb { flex-basis: 120px; }
  .row-meta { justify-items: start; grid-auto-flow: column; gap: 10px; }
  .form-grid { grid-template-columns: 1fr; }
}