:root {
    --marine: #1B2150;
    --marine-hell: #2a3170;
    --tuerkis: #2D9594;
    --tuerkis-dunkel: #237a79;
    --bg: #f4f6f9;
    --karte: #ffffff;
    --text: #1f2937;
    --text-leise: #6b7280;
    --rand: #d9dee7;
    --rot: #b91c1c;
    --seite: 250px;
}

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

html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 15px;
    line-height: 1.45;
    color: var(--text);
    background: var(--bg);
}
h1 { margin: 0 0 18px; font-size: 24px; color: var(--marine); }
h2 { margin: 0; font-size: 18px; color: var(--marine); }
a { color: var(--tuerkis-dunkel); }

/* ---------- Formularelemente ---------- */
label { display: block; margin: 14px 0 5px; font-weight: 600; font-size: 13.5px; }
input[type=text], input[type=email], input[type=password], input[type=date], input[type=time],
input[type=number], input[type=search], input[type=tel], select, textarea {
    width: 100%;
    padding: 9px 11px;
    font: inherit;
    color: inherit;
    background: #fff;
    border: 1px solid var(--rand);
    border-radius: 6px;
}
input[type=color] { width: 100%; height: 40px; padding: 2px; border: 1px solid var(--rand); border-radius: 6px; background: #fff; }
input:focus, select:focus, textarea:focus, button:focus-visible, a:focus-visible {
    outline: 2px solid var(--tuerkis);
    outline-offset: 1px;
}
textarea { resize: vertical; }
label.haken { display: flex; align-items: center; gap: 8px; font-weight: 400; margin: 12px 0 0; }
label.haken input { width: auto; }

.feld-fehler { margin-top: 4px; color: var(--rot); font-size: 13px; }
.klein { font-size: 12.5px; color: var(--text-leise); margin: 8px 0 0; }

.knopf {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 9px 16px;
    font: inherit; font-weight: 600;
    color: #fff; background: var(--tuerkis);
    border: 1px solid var(--tuerkis);
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}
.knopf:hover { background: var(--tuerkis-dunkel); border-color: var(--tuerkis-dunkel); }
.knopf-hell { color: var(--marine); background: #fff; border-color: var(--rand); }
.knopf-hell:hover { background: #eef1f6; border-color: var(--rand); }
.knopf-gefahr { background: #fff; color: var(--rot); border-color: #e7b4b4; }
.knopf-gefahr:hover { background: #fdeeee; border-color: #e7b4b4; }
.knopf-voll { width: 100%; margin-top: 20px; }
.link-knopf { background: none; border: 0; padding: 0; font: inherit; color: inherit; cursor: pointer; text-decoration: underline; }

.hinweis { padding: 11px 14px; border-radius: 6px; margin-bottom: 16px; font-size: 14px; }
.hinweis-ok { background: #e3f4f3; color: #14595a; border: 1px solid #b6e0de; }
.hinweis-fehler { background: #fdeeee; color: #8e1b1b; border: 1px solid #f0c4c4; }
.hinweis-warn { background: #fff7e0; color: #7a5a00; border: 1px solid #f0dca0; }

.punkt { display: inline-block; width: 11px; height: 11px; border-radius: 50%; margin-right: 7px; vertical-align: -1px; }
.abstand { flex: 1; }

/* ---------- Gast-Seiten (Login …) ---------- */
body.gast { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px 16px; }
.gast-karte { width: 100%; max-width: 410px; background: var(--karte); border-radius: 10px; padding: 28px; box-shadow: 0 6px 26px rgba(27, 33, 80, .12); }
.gast-logo { display: block; width: 230px; max-width: 80%; margin: 0 auto 22px; }
.gast-karte h1 { font-size: 20px; text-align: center; margin-bottom: 16px; }
.gast-text { color: var(--text-leise); margin: 0 0 12px; }
.gast-links { text-align: center; margin: 18px 0 0; font-size: 14px; }

/* ---------- App-Rahmen ---------- */
.app { display: flex; min-height: 100vh; }
.seitenleiste {
    width: var(--seite); flex: none;
    background: var(--marine); color: #dfe3f3;
    display: flex; flex-direction: column;
    position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.seitenleiste .logo { display: block; padding: 18px 18px 14px; background: #fff; }
.seitenleiste .logo img { display: block; width: 100%; height: auto; }
.seitenleiste nav { padding: 10px 0 14px; flex: 1; }
.nav-gruppe { padding: 16px 20px 6px; font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: #8e97c9; }
.seitenleiste a { display: block; padding: 9px 20px; color: #dfe3f3; text-decoration: none; border-left: 3px solid transparent; }
.seitenleiste a:hover { background: var(--marine-hell); }
.seitenleiste a.aktiv { background: var(--marine-hell); border-left-color: var(--tuerkis); color: #fff; font-weight: 600; }
.nutzer { border-top: 1px solid #343b78; padding: 12px 0 14px; }
.nutzer-name { padding: 4px 20px 8px; font-weight: 600; color: #fff; }
.nutzer-name small { font-weight: 400; color: #aab2e0; }
.nutzer form { padding: 9px 20px; }
.nutzer .link-knopf { color: #dfe3f3; text-decoration: none; }
.nutzer .link-knopf:hover { color: #fff; }

.inhalt { flex: 1; min-width: 0; padding: 28px 32px 48px; }
.mobil-kopf, .abdunklung { display: none; }

/* ---------- Filterleiste, Tabellen ---------- */
.filterleiste { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; margin-bottom: 18px; }
.filterleiste > div { min-width: 150px; }
.filterleiste > div.waechst { flex: 1; min-width: 220px; }
.filterleiste label { margin-top: 0; }

.tabelle-huelle { background: var(--karte); border-radius: 8px; box-shadow: 0 1px 3px rgba(27, 33, 80, .08); overflow-x: auto; }
.tabelle { width: 100%; border-collapse: collapse; }
.tabelle th { text-align: left; padding: 11px 14px; font-size: 12.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--text-leise); background: #f8f9fb; border-bottom: 1px solid var(--rand); white-space: nowrap; }
.tabelle td { padding: 11px 14px; border-bottom: 1px solid #eceff4; vertical-align: top; }
.tabelle tr:last-child td { border-bottom: 0; }
.tabelle.klickbar tbody tr:not(.leer) { cursor: pointer; }
.tabelle.klickbar tbody tr:not(.leer):hover, .tabelle.klickbar tbody tr:focus-visible { background: #f1f8f8; }
.tabelle td.kuerzen { max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tabelle tr.leer td { text-align: center; color: var(--text-leise); padding: 28px; }

.marke { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: 12.5px; font-weight: 600; }
.marke-gruen { background: #def3e6; color: #14663a; }
.marke-gelb { background: #fff0c2; color: #7a5a00; }
.marke-rot { background: #fbdcdc; color: #8e1b1b; }

.karte { background: var(--karte); border-radius: 8px; padding: 20px 22px 22px; box-shadow: 0 1px 3px rgba(27, 33, 80, .08); margin-bottom: 18px; }
.karte.schmal { max-width: 560px; }
.karte .knopf[type=submit] { margin-top: 20px; }

/* ---------- Overlay-Dialoge ---------- */
dialog {
    width: min(560px, calc(100vw - 24px));
    max-height: calc(100vh - 24px);
    padding: 0; border: 0; border-radius: 10px;
    box-shadow: 0 18px 60px rgba(10, 14, 40, .35);
    color: var(--text);
}
dialog::backdrop { background: rgba(20, 25, 60, .5); }
dialog form { display: flex; flex-direction: column; max-height: calc(100vh - 24px); }
.dialog-kopf { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--rand); }
.dialog-x { background: none; border: 0; font-size: 18px; cursor: pointer; color: var(--text-leise); padding: 4px 8px; }
.dialog-koerper { padding: 4px 20px 18px; overflow-y: auto; }
.dialog-fuss { display: flex; gap: 10px; align-items: center; padding: 14px 20px; border-top: 1px solid var(--rand); background: #f8f9fb; border-radius: 0 0 10px 10px; }
.zweispaltig { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.zweispaltig-breit { grid-template-columns: 2fr 1fr; }
.form-meldung { margin-top: 14px; padding: 10px 12px; border-radius: 6px; background: #fdeeee; color: #8e1b1b; border: 1px solid #f0c4c4; font-size: 14px; }
.zugang { margin: 18px 0 0; padding: 4px 14px 14px; border: 1px solid var(--rand); border-radius: 8px; }
.zugang legend { padding: 0 6px; font-weight: 600; font-size: 13.5px; color: var(--marine); }
.zugang .knopf { margin-top: 16px; }

/* ---------- Raumübersicht ---------- */
.blaettern { display: flex; align-items: stretch; gap: 8px; }
.blaettern .knopf { font-size: 20px; padding: 4px 14px; }
.woche-titel { display: flex; flex-direction: column; justify-content: center; text-align: center; min-width: 150px; line-height: 1.25; }
.woche-titel strong { color: var(--marine); font-size: 17px; }
.woche-titel span { font-size: 13px; color: var(--text-leise); }
.raum-beschreibung { margin: 0 0 12px; color: var(--text-leise); }
.raum-beschreibung strong { color: var(--text); }

.woche-huelle { background: var(--karte); border-radius: 8px; box-shadow: 0 1px 3px rgba(27, 33, 80, .08); overflow-x: auto; }
.woche { min-width: 760px; }
.woche-kopf, .woche-koerper { display: grid; grid-template-columns: 56px repeat(7, minmax(0, 1fr)); }
.woche-kopf { position: sticky; top: 0; background: #f8f9fb; border-bottom: 1px solid var(--rand); z-index: 3; }
.tag-kopf { padding: 9px 4px; text-align: center; font-weight: 600; border-left: 1px solid #eceff4; }
.tag-kopf span { display: block; font-weight: 400; font-size: 12.5px; color: var(--text-leise); }
.tag-kopf.heute { background: #e3f4f3; color: var(--tuerkis-dunkel); }
.zeitspalte .stunde { height: var(--zeile); position: relative; }
.zeitspalte .stunde span { position: absolute; top: -8px; right: 8px; font-size: 11.5px; color: var(--text-leise); }
.zeitspalte .stunde:first-child span { top: 2px; }
.tag-spalte {
    position: relative;
    height: calc(var(--stunden) * var(--zeile));
    border-left: 1px solid #eceff4;
    background-image: repeating-linear-gradient(to bottom, transparent 0, transparent calc(var(--zeile) - 1px), #eceff4 calc(var(--zeile) - 1px), #eceff4 var(--zeile));
    cursor: cell;
}
.tag-spalte.heute { background-color: #f6fbfb; }
.block {
    position: absolute; left: 3px; right: 3px;
    border-radius: 6px; padding: 3px 7px;
    color: #fff; font-size: 12.5px; line-height: 1.3;
    overflow: hidden; text-align: left;
    border: 0; border-left: 4px solid rgba(0, 0, 0, .25);
    cursor: default; z-index: 1;
}
.block.eigen { cursor: pointer; font-family: inherit; }
.block.eigen:hover { filter: brightness(1.1); box-shadow: 0 2px 8px rgba(0, 0, 0, .25); z-index: 2; }
.block.fremd { opacity: .85; display: flex; align-items: flex-start; font-weight: 700; }
.block span { display: block; }
.block-zeit { font-weight: 700; }
.block-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.legende { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 13.5px; color: var(--text-leise); }

/* ---------- Mobil ---------- */
@media (max-width: 900px) {
    .app { display: block; }
    .mobil-kopf { display: flex; align-items: center; gap: 12px; position: sticky; top: 0; z-index: 20; height: 54px; padding: 0 12px; background: #fff; border-bottom: 1px solid var(--rand); }
    .mobil-kopf img { height: 30px; width: auto; }
    .menue-knopf { background: none; border: 0; font-size: 26px; line-height: 1; padding: 4px 8px; color: var(--marine); cursor: pointer; }
    .seitenleiste { position: fixed; z-index: 40; top: 0; left: 0; bottom: 0; height: auto; transform: translateX(-100%); transition: transform .2s ease; }
    .app.menue-offen .seitenleiste { transform: none; box-shadow: 4px 0 24px rgba(0, 0, 0, .3); }
    .app.menue-offen .abdunklung { display: block; position: fixed; inset: 0; z-index: 30; background: rgba(20, 25, 60, .45); }
    .inhalt { padding: 18px 16px 40px; }
    h1 { font-size: 21px; }

    /* Tabellen als Karten */
    .tabelle-huelle { background: none; box-shadow: none; overflow: visible; }
    .tabelle thead { display: none; }
    .tabelle, .tabelle tbody, .tabelle tr, .tabelle td { display: block; width: 100%; }
    .tabelle tr:not(.leer) { background: var(--karte); border-radius: 8px; box-shadow: 0 1px 3px rgba(27, 33, 80, .08); margin-bottom: 10px; padding: 6px 0; }
    .tabelle td { border: 0; padding: 4px 14px; display: flex; gap: 10px; }
    .tabelle td::before { content: attr(data-label); flex: 0 0 96px; color: var(--text-leise); font-size: 12.5px; padding-top: 1px; }
    .tabelle td:empty { display: none; }
    .tabelle td.kuerzen { max-width: none; white-space: normal; }
    .tabelle tr.leer td { display: block; background: var(--karte); border-radius: 8px; }
    .tabelle tr.leer td::before { content: none; }

    .filterleiste > div, .filterleiste > div.waechst { flex: 1 1 140px; }
    .zweispaltig-breit { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .zweispaltig { grid-template-columns: 1fr; }
    #termin-dialog .zweispaltig { grid-template-columns: 1fr 1fr; }
    .dialog-fuss { flex-wrap: wrap; }
}