/* ============================================================
   Friends Bingo – Design
   Dunkles "Neon-Glass"-Design, ohne externe Schriftarten (DSGVO-freundlich)
   ============================================================ */
:root {
  --bg: #0b0b14;
  --bg-2: #12121f;
  --surface: rgba(255, 255, 255, 0.055);
  --surface-2: rgba(255, 255, 255, 0.09);
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.20);
  --text: #f4f4fb;
  --muted: #a3a3bd;
  --faint: #6c6c86;
  --violet: #8b5cf6;
  --pink: #ec4899;
  --amber: #f59e0b;
  --cyan: #22d3ee;
  --green: #34d399;
  --red: #f87171;
  --grad: linear-gradient(135deg, var(--violet) 0%, var(--pink) 55%, var(--amber) 100%);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.7);
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}
a { color: inherit; }
button, input, textarea, select { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.defs { position: absolute; width: 0; height: 0; overflow: hidden; }
details summary { cursor: pointer; padding: 4px 0; }
details[open] summary { margin-bottom: 10px; }

/* ---------- animierter Hintergrund ---------- */
.bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; background: radial-gradient(ellipse at top, #17172b 0%, var(--bg) 60%); }
.blob { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.35; animation: float 22s ease-in-out infinite alternate; }
.b1 { width: 520px; height: 520px; background: var(--violet); top: -160px; left: -120px; }
.b2 { width: 440px; height: 440px; background: var(--pink); bottom: -160px; right: -120px; animation-delay: -7s; }
.b3 { width: 320px; height: 320px; background: var(--cyan); top: 40%; left: 55%; opacity: 0.18; animation-delay: -14s; }
@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.08); }
  100% { transform: translate(-40px, 70px) scale(0.95); }
}
@media (prefers-reduced-motion: reduce) { .blob { animation: none; } }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px;
  padding: 14px clamp(16px, 4vw, 40px);
  background: rgba(11, 11, 20, 0.6);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; letter-spacing: -0.02em; font-size: 1.1rem; }
.brand-mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: var(--grad); font-weight: 900; box-shadow: 0 6px 20px -6px var(--pink);
}
.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a, .nav button {
  text-decoration: none; border: 0; background: none; cursor: pointer;
  padding: 8px 14px; border-radius: 999px; color: var(--muted); font-weight: 600; font-size: 0.93rem;
  transition: background .15s, color .15s;
}
.nav a:hover, .nav button:hover { color: var(--text); background: var(--surface); }
.nav a.active { color: var(--text); background: var(--surface-2); }
.nav .user-chip { color: var(--faint); font-size: 0.85rem; padding: 0 8px; }
.nav-toggle { display: none; margin-left: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; width: 40px; height: 40px; cursor: pointer; font-size: 1.1rem; }

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; padding: 10px 16px 16px;
    background: rgba(11, 11, 20, 0.95); border-bottom: 1px solid var(--border);
  }
  .nav.open { display: flex; }
  .nav a, .nav button { text-align: left; padding: 12px 14px; }
}

/* ---------- Layout ---------- */
.app { flex: 1; width: 100%; max-width: 1080px; margin: 0 auto; padding: clamp(20px, 4vw, 44px) clamp(16px, 4vw, 40px) 40px; }
.footer { text-align: center; padding: 24px 16px 32px; font-size: 0.85rem; color: var(--faint); }
.footer a { color: var(--muted); text-decoration: none; }
.footer a:hover { color: var(--text); }

h1, h2, h3 { letter-spacing: -0.03em; line-height: 1.15; margin: 0 0 12px; }
h1 { font-size: clamp(1.8rem, 4.5vw, 2.6rem); font-weight: 850; }
h2 { font-size: 1.35rem; font-weight: 750; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.muted { color: var(--muted); }
.small { font-size: 0.86rem; }

.page-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.page-head p { margin: 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 28px);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.stack > * + * { margin-top: 16px; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.spacer { flex: 1; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 999px; border: 1px solid var(--border-strong);
  background: var(--surface-2); color: var(--text); font-weight: 650; cursor: pointer;
  text-decoration: none; transition: transform .12s, box-shadow .2s, background .2s, opacity .2s;
  white-space: nowrap;
}
.btn:hover { background: rgba(255,255,255,0.14); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--grad); border-color: transparent; box-shadow: 0 10px 30px -10px var(--pink); }
.btn-primary:hover { background: var(--grad); box-shadow: 0 14px 34px -8px var(--pink); }
.btn-danger { background: rgba(248, 113, 113, 0.12); border-color: rgba(248, 113, 113, 0.4); color: #fecaca; }
.btn-danger:hover { background: rgba(248, 113, 113, 0.22); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 7px 14px; font-size: 0.87rem; }
.btn-block { width: 100%; }

/* ---------- Formulare ---------- */
label.field { display: block; }
label.field > span { display: block; font-size: 0.86rem; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.input, textarea.input {
  width: 100%; padding: 12px 14px; border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.28); border: 1px solid var(--border); outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.input:focus { border-color: var(--violet); box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.2); }
textarea.input { resize: vertical; min-height: 120px; }
.form-error { color: #fecaca; background: rgba(248,113,113,0.1); border: 1px solid rgba(248,113,113,0.3); padding: 10px 14px; border-radius: var(--radius-sm); font-size: 0.92rem; }

.segmented { display: inline-flex; padding: 4px; border-radius: 999px; background: rgba(0,0,0,0.3); border: 1px solid var(--border); }
.segmented button { border: 0; background: none; padding: 9px 20px; border-radius: 999px; cursor: pointer; font-weight: 700; color: var(--muted); }
.segmented button.on { background: var(--grad); color: #fff; box-shadow: 0 6px 18px -8px var(--pink); }

/* ---------- Login ---------- */
.auth-wrap { min-height: calc(100dvh - 140px); display: grid; place-items: center; }
.auth-card { width: 100%; max-width: 420px; }
.auth-hero { text-align: center; margin-bottom: 26px; }
.auth-hero .brand-mark { width: 64px; height: 64px; font-size: 2rem; border-radius: 20px; margin: 0 auto 18px; }
.auth-hero h1 { margin-bottom: 6px; }

/* ---------- Bingo-Liste ---------- */
.bingo-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.bingo-tile {
  position: relative; display: block; text-decoration: none; overflow: hidden;
  padding: 22px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border);
  transition: transform .18s, border-color .18s, background .18s;
}
.bingo-tile:hover { transform: translateY(-3px); border-color: var(--border-strong); background: var(--surface-2); }
.bingo-tile h3 { font-size: 1.15rem; margin: 10px 0 14px; word-break: break-word; }
.mini-grid { display: grid; gap: 3px; width: 54px; }
.mini-grid i { aspect-ratio: 1; border-radius: 3px; background: rgba(255,255,255,0.1); }
.mini-grid i.on { background: var(--grad); }
.progress { height: 6px; border-radius: 999px; background: rgba(255,255,255,0.08); overflow: hidden; }
.progress > div { height: 100%; background: var(--grad); border-radius: inherit; transition: width .4s; }
.tile-meta { display: flex; justify-content: space-between; margin-top: 10px; font-size: 0.85rem; color: var(--muted); }
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px;
  font-size: 0.76rem; font-weight: 750; letter-spacing: 0.02em;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--muted);
}
.badge-win { background: var(--grad); color: #fff; border-color: transparent; }
.tile-top { display: flex; justify-content: space-between; align-items: flex-start; }

.empty { text-align: center; padding: 60px 20px; }
.empty .big { font-size: 3rem; margin-bottom: 10px; }

/* ---------- Bingo-Brett ---------- */
.board-wrap { max-width: 720px; margin: 0 auto; }
.board-head { text-align: center; margin-bottom: 22px; }
.board-head h1 { word-break: break-word; }
.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin-top: 10px; }
.chip { padding: 4px 12px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); font-size: 0.82rem; color: var(--muted); }

.board {
  display: grid; gap: clamp(6px, 1.4vw, 12px);
  padding: clamp(10px, 2vw, 18px); border-radius: calc(var(--radius) + 6px);
  background: rgba(255,255,255,0.035); border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.board.s3 { grid-template-columns: repeat(3, 1fr); }
.board.s5 { grid-template-columns: repeat(5, 1fr); }

.cell {
  position: relative; aspect-ratio: 1; border-radius: clamp(10px, 1.6vw, 16px);
  background: linear-gradient(160deg, rgba(255,255,255,0.09), rgba(255,255,255,0.03));
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; text-align: center;
  padding: clamp(4px, 1vw, 12px); cursor: pointer; user-select: none; overflow: hidden;
  transition: transform .15s, border-color .15s, background .2s, box-shadow .25s;
  -webkit-tap-highlight-color: transparent;
}
.cell:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.cell:focus-visible { outline: 3px solid var(--violet); outline-offset: 2px; }
.cell .txt {
  position: relative; z-index: 2; font-weight: 650; hyphens: auto; -webkit-hyphens: auto;
  overflow-wrap: anywhere; line-height: 1.2;
}
.board.s3 .cell .txt { font-size: clamp(0.85rem, 2.6vw, 1.15rem); }
.board.s5 .cell .txt { font-size: clamp(0.58rem, 1.7vw, 0.9rem); }
.board.s5 .cell.long .txt { font-size: clamp(0.5rem, 1.35vw, 0.76rem); }
.board.s3 .cell.long .txt { font-size: clamp(0.7rem, 2vw, 0.95rem); }
.cell .who {
  position: absolute; bottom: 5px; left: 0; right: 0; z-index: 2;
  font-size: clamp(0.5rem, 1.2vw, 0.7rem); color: rgba(255,255,255,0.85); font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding: 0 6px;
}
.board.s5 .cell .who { display: none; }

/* Markiert: Stempel-Kreuz */
.cell.marked {
  background: linear-gradient(160deg, rgba(139,92,246,0.35), rgba(236,72,153,0.25));
  border-color: rgba(236,72,153,0.55);
}
.cell.marked .txt { text-shadow: 0 1px 3px rgba(0,0,0,0.9), 0 0 10px rgba(0,0,0,0.6); }
.cell .stamp { position: absolute; inset: 10%; z-index: 1; pointer-events: none; }
.cell .stamp path {
  fill: none; stroke: url(#stampGrad); stroke-width: 9; stroke-linecap: round;
  stroke-dasharray: 130; stroke-dashoffset: 0; opacity: 0.3;
}
.cell.just-marked .stamp path { animation: draw .45s ease-out both; }
.cell.just-marked .stamp path:nth-child(2) { animation-delay: .18s; }
@keyframes draw { from { stroke-dashoffset: 130; } to { stroke-dashoffset: 0; } }
.cell.just-marked { animation: pop .4s ease-out; }
@keyframes pop { 0% { transform: scale(1); } 40% { transform: scale(1.08); } 100% { transform: scale(1); } }

/* Gewinnreihe */
.cell.win {
  border-color: rgba(245, 158, 11, 0.9);
  box-shadow: 0 0 0 1px rgba(245,158,11,0.6), 0 0 24px -4px rgba(245,158,11,0.75);
  background: linear-gradient(160deg, rgba(245,158,11,0.35), rgba(236,72,153,0.3));
}

/* Erst-Tipp: Bestätigung */
.cell.pending { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34,211,238,0.35); }
.cell.pending::after {
  content: "Nochmal tippen ✓"; position: absolute; inset: 0; z-index: 3;
  display: grid; place-items: center; background: rgba(8, 20, 30, 0.82); color: var(--cyan);
  font-weight: 800; font-size: clamp(0.55rem, 1.6vw, 0.9rem); padding: 4px;
}
.cell.locked { cursor: default; }
.cell.locked:hover { transform: none; }

.bingo-banner {
  text-align: center; margin: 0 auto 20px; padding: 14px 20px; border-radius: var(--radius);
  background: var(--grad); font-weight: 900; font-size: clamp(1.2rem, 4vw, 1.7rem); letter-spacing: 0.04em;
  box-shadow: 0 20px 40px -18px var(--pink); animation: glow 2.4s ease-in-out infinite;
}
@keyframes glow { 50% { box-shadow: 0 20px 50px -10px var(--amber); } }

.board-foot { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; margin-top: 18px; }
.legend { color: var(--faint); font-size: 0.85rem; }

/* ---------- Admin ---------- */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table th { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--faint); font-weight: 700; }
.table tr:last-child td { border-bottom: 0; }
.table td.actions { text-align: right; white-space: nowrap; }
.table .uname { color: var(--faint); font-size: 0.85rem; }
@media (max-width: 640px) {
  .table thead { display: none; }
  .table, .table tbody, .table tr, .table td { display: block; width: 100%; }
  .table tr { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .table td { border: 0; padding: 4px 0; }
  .table td.actions { text-align: left; padding-top: 10px; }
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .grid-2 { grid-template-columns: 1fr; } }

.item-grid { display: grid; gap: 8px; }
.item-grid.s3 { grid-template-columns: repeat(3, 1fr); }
.item-grid.s5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 640px) { .item-grid.s5, .item-grid.s3 { grid-template-columns: 1fr 1fr; } }
.item-grid .input { padding: 10px; font-size: 0.9rem; }
.item-wrap { position: relative; }
.item-wrap .num { position: absolute; top: -7px; left: 8px; font-size: 0.66rem; font-weight: 800; color: var(--faint); background: var(--bg-2); padding: 0 5px; border-radius: 6px; }

.user-picks { display: flex; flex-wrap: wrap; gap: 8px; }
.pick {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer; padding: 8px 14px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border); font-weight: 600; font-size: 0.92rem; transition: all .15s;
}
.pick input { display: none; }
.pick .dot { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--faint); transition: all .15s; }
.pick.on { border-color: rgba(236,72,153,0.6); background: rgba(236,72,153,0.12); }
.pick.on .dot { border-color: transparent; background: var(--grad); box-shadow: 0 0 10px var(--pink); }

.secret {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 1.15rem; font-weight: 700;
  padding: 12px 16px; border-radius: var(--radius-sm); background: rgba(0,0,0,0.4); border: 1px dashed var(--border-strong);
  user-select: all; word-break: break-all; text-align: center;
}

/* ---------- Modal ---------- */
.modal-back {
  position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 16px;
  background: rgba(5, 5, 12, 0.7); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  animation: fade .15s ease-out;
}
.modal { width: 100%; max-width: 460px; background: var(--bg-2); animation: rise .2s ease-out; max-height: 90vh; overflow: auto; }
@keyframes fade { from { opacity: 0; } }
@keyframes rise { from { transform: translateY(14px); opacity: 0; } }

/* ---------- Toasts ---------- */
.toasts { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 60; display: flex; flex-direction: column; gap: 8px; align-items: center; width: calc(100% - 32px); max-width: 420px; }
.toast {
  padding: 12px 18px; border-radius: 14px; background: rgba(24, 24, 40, 0.95); border: 1px solid var(--border-strong);
  box-shadow: var(--shadow); font-weight: 600; font-size: 0.93rem; animation: rise .2s ease-out;
}
.toast.err { border-color: rgba(248,113,113,0.5); color: #fecaca; }
.toast.ok { border-color: rgba(52,211,153,0.5); }

.confetti { position: fixed; inset: 0; pointer-events: none; z-index: 70; width: 100%; height: 100%; }

/* ---------- Impressum ---------- */
.legal { max-width: 760px; margin: 0 auto; }
.legal h2 { margin-top: 28px; }
.legal .legal-section { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); }
.legal p, .legal li { color: #d5d5e6; }
.back-link { display: inline-block; margin-bottom: 18px; color: var(--muted); text-decoration: none; }
.back-link:hover { color: var(--text); }

.spinner { width: 34px; height: 34px; border-radius: 50%; border: 3px solid var(--surface-2); border-top-color: var(--pink); animation: spin .8s linear infinite; margin: 60px auto; }
@keyframes spin { to { transform: rotate(360deg); } }