/* Tower. System font, no external assets, light/dark by prefers-color-scheme.
   Phone first (375 px, no horizontal scroll); nuc.css reuses these variables. */

:root {
  --bg: #f4f5f7;
  --card-bg: #ffffff;
  --text: #1b1f24;
  --muted: #5b6570;
  --border: #d4d9df;
  --link: #0b5cad;
  --frei: #e3f4e6;
  --frei-border: #2e9d4c;
  --warnung-bg: #fff4d6;
  --warnung-border: #d9a000;
  --warnung-text: #5c4300;
  --fehler-bg: #fde4e1;
  --fehler-border: #d33b2c;
  --fehler-text: #7a1a12;
  --wechsel-border: #d9a000;
  --belegt-border: #d33b2c;
  --grau: #9aa3ad;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151a;
    --card-bg: #1b2028;
    --text: #e6e9ed;
    --muted: #99a3ae;
    --border: #2f3743;
    --link: #7db7f2;
    --frei: #16301d;
    --frei-border: #3fb862;
    --warnung-bg: #3a2f10;
    --warnung-border: #e0b030;
    --warnung-text: #f0d98a;
    --fehler-bg: #3d1a17;
    --fehler-border: #ef5a4a;
    --fehler-text: #f7b3ab;
    --wechsel-border: #e0b030;
    --belegt-border: #ef5a4a;
    --grau: #6b7683;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0 auto;
  max-width: 44rem;
  padding: 0.75rem 1rem 2rem;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow-wrap: anywhere;
}

a { color: var(--link); }

h1, h2 { margin: 0; line-height: 1.2; }
h2 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 1.25rem 0 0.4rem; }
.seitentitel { font-size: 1.3rem; margin: 0.5rem 0 0.75rem; }
.logo { font-size: 1.4rem; margin: 0.5rem 0 1rem; }

/* navigation */
.nav { display: flex; gap: 0.25rem; margin-bottom: 0.75rem; }
.nav a {
  flex: 1 1 0; text-align: center; padding: 0.55rem 0.25rem; min-height: 2.75rem;
  border: 1px solid var(--border); border-radius: 8px; background: var(--card-bg);
  color: var(--text); text-decoration: none; font-weight: 600;
}
.nav a[aria-current="page"] { border-color: var(--link); color: var(--link); }

/* status dots: colour AND shape differ, so they work without colour vision */
.punkt {
  display: inline-block; flex: 0 0 auto; width: 0.85rem; height: 0.85rem;
  border-radius: 50%; vertical-align: -0.1rem; margin-right: 0.5rem;
  background: var(--grau); border: 2px solid var(--grau);
}
.p-ok { background: var(--frei-border); border-color: var(--frei-border); }
.p-warnung { background: var(--warnung-border); border-color: var(--warnung-border); border-radius: 3px; transform: rotate(45deg) scale(0.9); }
.p-fehler { background: var(--fehler-border); border-color: var(--fehler-border); border-radius: 2px; }
.p-unbekannt { background: transparent; }

/* status strip */
.status { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.5rem; }
@media (min-width: 560px) { .status { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.kachel {
  display: flex; flex-direction: column; gap: 0.2rem; min-width: 0;
  padding: 0.6rem 0.65rem; border: 1px solid var(--border); border-radius: 10px;
  background: var(--card-bg); color: var(--text); text-decoration: none;
}
.kachel-kopf { display: flex; align-items: center; }
.zahlen { display: flex; flex-direction: column; font-size: 0.85rem; }
.zeit { font-size: 0.75rem; color: var(--muted); }

/* link groups */
.gruppe { min-width: 0; }
.zeilen { list-style: none; margin: 0; padding: 0; border: 1px solid var(--border); border-radius: 10px; background: var(--card-bg); }
.zeilen li { display: flex; align-items: center; gap: 0.25rem; padding: 0.55rem 0.75rem; min-height: 2.75rem; border-top: 1px solid var(--border); flex-wrap: wrap; }
.zeilen li:first-child { border-top: 0; }
.zeilen .name { flex: 1 1 8rem; min-width: 0; }
.zeilen .wert { flex: 2 1 10rem; min-width: 0; text-align: right; color: var(--muted); font-size: 0.9rem; }
.zeilen .leer, .leer { color: var(--muted); }
.ziele { display: flex; flex-wrap: wrap; gap: 0.25rem 0.9rem; justify-content: flex-end; }
.ziel a, .name a { display: inline-block; padding: 0.4rem 0; font-weight: 600; }
.vpn { margin-left: 0.3rem; padding: 0.05rem 0.4rem; font-size: 0.7rem; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); white-space: nowrap; }

/* deadlines */
.fristzeile { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; font-size: 0.85rem; color: var(--muted); }
.fristzeile li { display: flex; align-items: center; }

/* detail pages */
.zustand { margin: 0 0 0.5rem; padding: 0.6rem 0.75rem; border: 1px solid var(--border); border-radius: 10px; background: var(--card-bg); font-weight: 600; }
.z-ok { background: var(--frei); border-color: var(--frei-border); }
.z-warnung { background: var(--warnung-bg); border-color: var(--warnung-border); color: var(--warnung-text); }
.z-fehler { background: var(--fehler-bg); border-color: var(--fehler-border); color: var(--fehler-text); }
.hinweis { color: var(--muted); font-size: 0.85rem; margin: 0.4rem 0; }
.meldung { padding: 0.6rem 0.75rem; border: 1px solid var(--fehler-border); border-radius: 8px; background: var(--fehler-bg); color: var(--fehler-text); }

/* login */
.anmelden { display: flex; flex-direction: column; gap: 0.5rem; max-width: 22rem; }
.anmelden label { font-weight: 600; }
input[type="password"], input[type="text"][readonly] {
  font: inherit; padding: 0.6rem; min-height: 2.75rem; border: 1px solid var(--border);
  border-radius: 8px; background: var(--card-bg); color: var(--text);
}
button { font: inherit; }
.anmelden button {
  min-height: 2.75rem; border: 0; border-radius: 8px; background: var(--link);
  color: var(--bg); font-weight: 700;
}

/* footer */
.fuss { margin-top: 1.5rem; text-align: center; }
.fuss form { display: inline-block; }
input[readonly] { color: var(--muted); }
.textknopf { background: none; border: 0; color: var(--muted); text-decoration: underline; padding: 0.6rem 1rem; min-height: 2.75rem; cursor: pointer; }