/* Grundstil: alter Stadtplan – Papier, Tinte, Kölner Rot */
:root {
  --papier: #f4ecd8;
  --papier-2: #ebe0c4;
  --papier-3: #ddcfae;
  --tinte: #1f2a3a;
  --tinte-2: #46526a;
  --tinte-3: #7a8396;
  --rot: #c8102e;
  --rot-dunkel: #9a0c23;
  --gold: #c9a227;
  --wasser: #6f9fc8;
  --wasser-dunkel: #4a7fb0;
  --ok: #2e8b57;
  --schatten: 0 1px 2px rgba(31, 42, 58, .12), 0 6px 18px rgba(31, 42, 58, .14);
  --schatten-gross: 0 2px 4px rgba(31, 42, 58, .14), 0 18px 48px rgba(31, 42, 58, .28);
  --rund: 10px;
  --schrift-titel: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --schrift: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--schrift);
  color: var(--tinte);
  background: var(--papier);
  background-image:
    radial-gradient(ellipse at 20% 10%, rgba(255, 255, 255, .55), transparent 60%),
    radial-gradient(ellipse at 80% 90%, rgba(160, 120, 60, .10), transparent 55%);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--schrift-titel); font-weight: 700; letter-spacing: .01em; margin: 0 0 .5em; }
a { color: var(--rot); }

.knopf {
  appearance: none;
  border: 1px solid rgba(31, 42, 58, .25);
  background: #fffaf0;
  color: var(--tinte);
  font: 600 15px/1 var(--schrift);
  padding: 11px 16px;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .8) inset, 0 1px 2px rgba(31, 42, 58, .12);
  transition: transform .08s ease, box-shadow .15s ease, background .15s ease;
  touch-action: manipulation;
  user-select: none;
}
.knopf:hover { background: #fff; box-shadow: 0 1px 0 #fff inset, 0 3px 8px rgba(31, 42, 58, .18); }
.knopf:active { transform: translateY(1px); }
.knopf:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.knopf:focus-visible, input:focus-visible { outline: 3px solid rgba(200, 16, 46, .35); outline-offset: 2px; }
.knopf.haupt { background: linear-gradient(#d4243f, var(--rot)); border-color: var(--rot-dunkel); color: #fff; box-shadow: 0 1px 0 rgba(255, 255, 255, .25) inset, 0 2px 6px rgba(154, 12, 35, .35); }
.knopf.haupt:hover { background: linear-gradient(#dc3049, #b50e29); }
.knopf.leise { background: transparent; box-shadow: none; border-color: transparent; color: var(--tinte-2); }
.knopf.leise:hover { background: rgba(31, 42, 58, .06); }
.knopf.klein { padding: 7px 10px; font-size: 13px; }
.knopf.voll { width: 100%; }

input[type=text], input[type=password] {
  width: 100%;
  font: 16px var(--schrift);
  padding: 12px 13px;
  border-radius: 8px;
  border: 1px solid rgba(31, 42, 58, .28);
  background: #fffdf7;
  color: var(--tinte);
}
label { display: block; font-weight: 600; font-size: 14px; margin: 14px 0 6px; color: var(--tinte-2); }

.karte-papier {
  background: #fbf6ea;
  border: 1px solid rgba(31, 42, 58, .14);
  border-radius: var(--rund);
  box-shadow: var(--schatten);
}

.meldung { margin-top: 14px; padding: 10px 12px; border-radius: 8px; font-size: 14px; display: none; }
.meldung.zeigen { display: block; }
.meldung.fehler { background: #fde8eb; color: var(--rot-dunkel); border: 1px solid #f3b8c2; }
.meldung.ok { background: #e6f4ea; color: #1e6b3e; border: 1px solid #b6dcc3; }

.versteckt { display: none !important; }
.nur-leser { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }