/* Round-Robin-Kalender - gemeinsames Design
   Copyright (c) 2026 Stefan Dietzel. Alle Rechte vorbehalten. */
:root{
  --bg:#f1f5f9; --card:#ffffff; --ink:#0f172a; --muted:#64748b; --line:#e2e8f0;
  --primary:#2563eb; --primary-dark:#1d4ed8; --danger:#dc2626; --ok:#16a34a;
  --radius:12px; --shadow:0 1px 3px rgba(15,23,42,.08),0 1px 2px rgba(15,23,42,.04);
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5}
a{color:var(--primary);text-decoration:none}
h1,h2,h3{margin:0 0 .5em}
.topbar{background:var(--card);border-bottom:1px solid var(--line);padding:.7rem 1.2rem;display:flex;align-items:center;gap:1rem;position:sticky;top:0;z-index:20}
.topbar .brand{font-weight:700;font-size:1.05rem}
.topbar .spacer{flex:1}
.topbar nav a{margin-left:1rem;color:var(--muted);font-weight:500}
.topbar nav a.active,.topbar nav a:hover{color:var(--ink)}
.wrap{max-width:1200px;margin:1.2rem auto;padding:0 1.2rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.2rem;margin-bottom:1.2rem}
.card h2{font-size:1.1rem}
label{display:block;font-size:.85rem;font-weight:600;color:var(--muted);margin:.6rem 0 .2rem}
input,select,textarea{width:100%;padding:.55rem .7rem;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);border-color:var(--primary)}
textarea{min-height:110px;resize:vertical;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.85rem}
button,.btn{cursor:pointer;border:none;border-radius:8px;padding:.55rem 1rem;font:inherit;font-weight:600;background:var(--primary);color:#fff}
button:hover,.btn:hover{background:var(--primary-dark)}
button.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
button.ghost:hover{background:var(--bg)}
button.danger{background:var(--danger)}
button.small{padding:.3rem .6rem;font-size:.8rem}
.row{display:flex;gap:.8rem;flex-wrap:wrap}
.row>*{flex:1;min-width:180px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:.5rem .6rem;border-bottom:1px solid var(--line);font-size:.9rem}
th{color:var(--muted);font-weight:600}
.badge{display:inline-block;padding:.1rem .5rem;border-radius:999px;font-size:.75rem;font-weight:600}
.badge.ok{background:#dcfce7;color:#166534}.badge.off{background:#fee2e2;color:#991b1b}
.dot{display:inline-block;width:12px;height:12px;border-radius:50%;vertical-align:middle;margin-right:.4rem}
.msg{padding:.6rem .8rem;border-radius:8px;margin:.6rem 0;font-size:.9rem;display:none}
.msg.show{display:block}
.msg.ok{background:#dcfce7;color:#166534}.msg.err{background:#fee2e2;color:#991b1b}
.muted{color:var(--muted);font-size:.85rem}
.tabs{display:flex;gap:.3rem;flex-wrap:wrap;margin-bottom:1rem}
.tabs button{background:#fff;color:var(--muted);border:1px solid var(--line)}
.tabs button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.hidden{display:none!important}
/* Login / zentrierte Seiten */
.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.2rem}
.center .card{width:100%;max-width:400px;margin:0}
/* Kalender-Wochenraster */
.cal-toolbar{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;margin-bottom:.8rem}
.cal-toolbar .title{font-weight:700;font-size:1.05rem;min-width:220px}
.filters{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:.8rem}
.filters label{display:flex;align-items:center;gap:.35rem;font-weight:500;color:var(--ink);margin:0;cursor:pointer}
.filters input{width:auto}
.grid{display:grid;grid-template-columns:56px repeat(7,1fr);border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.grid .head{background:#f8fafc;border-bottom:1px solid var(--line);padding:.4rem;text-align:center;font-size:.8rem;font-weight:600}
.grid .head.today{background:#eff6ff;color:var(--primary)}
.grid .timecol{border-right:1px solid var(--line);position:relative}
.grid .daycol{border-right:1px solid var(--line);position:relative;min-height:100%}
.grid .hour{height:44px;border-bottom:1px solid #f1f5f9;font-size:.7rem;color:var(--muted);padding:2px 4px}
.ev{position:absolute;left:2px;right:2px;border-radius:6px;padding:2px 5px;font-size:.72rem;color:#fff;overflow:hidden;cursor:pointer;box-shadow:var(--shadow)}
.ev small{display:block;opacity:.9;font-size:.66rem}
/* Modal */
.modal-bg{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;align-items:center;justify-content:center;z-index:50;padding:1rem}
.modal-bg.show{display:flex}
.modal{background:#fff;border-radius:var(--radius);padding:1.3rem;width:100%;max-width:440px;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.modal h3{margin-top:0}
.modal .actions{display:flex;gap:.6rem;justify-content:flex-end;margin-top:1rem}