:root {
  --teal: #2e7d74;
  --teal-dark: #1f5a54;
  --bg: #f4f7f6;
  --card: #ffffff;
  --text: #283331;
  --muted: #6b7a77;
  --border: #dde5e3;
  --error-bg: #fdecea;
  --error-text: #9c2b22;
  --notice-bg: #e8f2f0;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px; line-height: 1.55;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
.top { background: var(--teal); color: #fff; }
.bar { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; flex-wrap: wrap; gap: 4px; }
.brand { font-weight: 700; letter-spacing: .3px; }
.pname { opacity: .9; font-size: .9rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 24px; margin: 20px 0; }
.card.center { text-align: center; }
h1 { font-size: 1.4rem; margin: 0 0 14px; }
h2 { font-size: 1.15rem; margin: 0 0 12px; }
.notice { background: var(--notice-bg); border-radius: 8px; padding: 12px 14px; font-size: .92rem; margin-bottom: 16px; }
.error { background: var(--error-bg); color: var(--error-text); border-radius: 8px; padding: 12px 14px; margin-bottom: 16px; }
.muted { color: var(--muted); font-size: .88rem; }
label { display: block; font-weight: 600; margin: 12px 0 4px; font-size: .95rem; }
input, select {
  width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 1rem; background: #fff;
}
button, .btn {
  display: inline-block; background: var(--teal); color: #fff; border: none;
  padding: 12px 22px; border-radius: 8px; font-size: 1rem; cursor: pointer;
  text-decoration: none; margin-top: 14px;
}
button:hover, .btn:hover { background: var(--teal-dark); }
button.danger { background: #b3261e; padding: 6px 12px; font-size: .85rem; margin: 0; }
.btn.small { padding: 6px 12px; font-size: .85rem; margin: 0 0 0 8px; }
.back { color: var(--teal); text-decoration: none; }
.foot { text-align: center; color: var(--muted); font-size: .82rem; padding: 18px 16px 30px; }

/* Auswahl */
.choices { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 560px) { .choices { grid-template-columns: 1fr 1fr; } }
.choice {
  display: block; border: 2px solid var(--border); border-radius: 12px; padding: 22px;
  text-align: center; text-decoration: none; color: var(--text); transition: border-color .15s, transform .15s;
}
.choice:hover { border-color: var(--teal); transform: translateY(-2px); }
.choice-icon { display: block; font-size: 2rem; color: var(--teal); }
.choice-title { display: block; font-weight: 700; margin-top: 8px; }
.choice-sub { display: block; font-size: .85rem; color: var(--muted); margin-top: 4px; }

/* Dateiliste */
.filelist { list-style: none; padding: 0; margin: 0; }
.filelist li { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.fname { font-weight: 600; flex: 1 1 200px; word-break: break-all; }
.fsize { color: var(--muted); font-size: .85rem; }
.filelist .btn { margin: 0; padding: 8px 16px; font-size: .9rem; }

/* Upload */
.drop {
  border: 2px dashed var(--border); border-radius: 12px; padding: 30px 20px;
  text-align: center; transition: border-color .15s, background .15s;
}
.drop.over { border-color: var(--teal); background: var(--notice-bg); }
.drop input[type=file] { display: none; }
.filebtn { margin-top: 4px; }
.check {
  width: 64px; height: 64px; border-radius: 50%; background: var(--teal); color: #fff;
  font-size: 2rem; line-height: 64px; margin: 0 auto 14px;
}
.linkbox {
  background: var(--notice-bg); border-radius: 8px; padding: 14px;
  font-family: ui-monospace, monospace; font-size: .85rem; word-break: break-all;
  user-select: all;
}
.linkbox.tiny { display: block; padding: 6px 8px; font-size: .72rem; max-width: 360px; }

/* Admin */
table { width: 100%; border-collapse: collapse; font-size: .88rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }
.scroll { overflow-x: auto; }
.grid2 { display: grid; gap: 12px; grid-template-columns: 1fr; }
.grid3 { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 560px) {
  .grid2 { grid-template-columns: 1fr 1fr; }
  .grid3 { grid-template-columns: 1fr 1fr 1fr; }
}
form.inline { display: inline; }
.rowform { display: flex; gap: 6px; align-items: center; }
.rowform input[type=text] { padding: 6px 8px; width: 140px; font-size: .85rem; }
button.mini { padding: 6px 12px; font-size: .85rem; margin: 0; }
.chk { display: flex; align-items: center; gap: 4px; font-size: .8rem; color: var(--muted); font-weight: 400; margin: 0; white-space: nowrap; }
.chk input { width: auto; }
code { background: var(--notice-bg); padding: 1px 5px; border-radius: 4px; }