:root {
  color-scheme: dark;
  --bg: #060a18;
  --bg-deep: #03060f;
  --surface: #0f1730;
  --surface-2: #131d3b;
  --border: rgba(120, 146, 214, 0.18);
  --border-strong: rgba(120, 146, 214, 0.32);
  --text: #eef2ff;
  --muted: #8f9bbd;
  --turquoise: #2dd4bf;
  --blue: #5b9dff;
  --purple: #a78bfa;
  --amber: #f6c76b;
  --green: #4ade80;
  --danger: #ff7b8a;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(900px 480px at 10% -10%, rgba(45, 212, 191, 0.09), transparent 60%),
    radial-gradient(800px 480px at 95% 0%, rgba(167, 139, 250, 0.1), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg-deep));
  color: var(--text);
  font: 14px/1.5 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

button, input, select { font: inherit; }
button { cursor: pointer; }
a { color: var(--blue); }

.mark {
  display: inline-block;
  width: 22px;
  height: 22px;
  margin-right: 10px;
  vertical-align: -5px;
  border-radius: 7px;
  background: conic-gradient(from 210deg, var(--turquoise), var(--blue), var(--purple), var(--turquoise));
}

.muted { color: var(--muted); font-weight: 550; }

button {
  height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--turquoise), var(--blue));
  color: #04101f;
  font-weight: 750;
}
button.secondary { border: 1px solid var(--border-strong); background: var(--surface-2); color: var(--text); font-weight: 600; }
button.danger { background: var(--danger); color: #1a0508; }
button.small { height: 32px; padding: 0 12px; font-size: 13px; }
button.link { height: auto; padding: 0; background: none; color: var(--blue); font-weight: 600; }
button:disabled { opacity: 0.5; cursor: default; }

input, select {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: #0a1126;
  color: var(--text);
}
input:focus, select:focus { outline: 2px solid var(--blue); outline-offset: 1px; }
label { display: block; margin: 0 0 6px; color: var(--muted); font-size: 12px; font-weight: 650; }

.error { min-height: 1em; margin: 10px 0 0; color: var(--danger); font-size: 13px; }
.hint { margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; color: var(--muted); overflow-wrap: anywhere; }

.login { display: grid; min-height: 100vh; place-items: center; padding: 20px; }
.login-card {
  width: min(420px, 100%);
  padding: 28px;
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
}
.login-card h1 { margin: 0 0 6px; font-size: 20px; }
.login-card p { margin: 0 0 18px; color: var(--muted); }
.login-card button { width: 100%; margin-top: 14px; }

.app { width: min(1200px, calc(100% - 32px)); margin: 0 auto; padding: 18px 0 40px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.brand { margin: 0; font-size: 17px; font-weight: 750; }
.topnav { display: flex; align-items: center; gap: 18px; }

.panel {
  margin-bottom: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(23, 34, 66, 0.78), rgba(13, 20, 41, 0.78));
}
.panel h2 { margin: 0 0 14px; font-size: 16px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.panel-head h2 { margin: 0; }

.create { display: grid; grid-template-columns: 2fr 1fr auto; gap: 12px; align-items: end; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
th { color: var(--muted); font-size: 12px; font-weight: 650; }
td .mono { white-space: nowrap; }
td .row-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.badge { padding: 3px 9px; border: 1px solid var(--border-strong); border-radius: 999px; font-size: 11px; font-weight: 750; text-transform: uppercase; letter-spacing: 0.06em; }
.badge.planned { border-color: rgba(246, 199, 107, 0.55); color: #ffe2a8; }
.badge.active { border-color: rgba(74, 222, 128, 0.55); color: #c6f6d5; }
.badge.ended { border-color: rgba(255, 123, 138, 0.55); color: #ffd1d7; }
.note { color: var(--muted); font-size: 12px; }

.result { display: grid; grid-template-columns: 300px 1fr; gap: 24px; align-items: start; }
.qr-box { padding: 10px; border-radius: 12px; background: #fff; }
.qr-box canvas { display: block; width: 100%; height: auto; image-rendering: pixelated; }
.result-text h2 { margin: 0 0 4px; }
.callout { margin: 12px 0 0; padding: 10px 12px; border: 1px solid var(--border-strong); border-radius: 10px; color: #cdd6f2; font-size: 13px; }
.callout strong { display: block; color: var(--text); }
.callout.warn { border-color: rgba(246, 199, 107, 0.45); background: rgba(246, 199, 107, 0.06); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.organizer { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); }
.organizer h3 { margin: 0 0 4px; font-size: 14px; }
.organizer p { margin: 0 0 10px; color: var(--muted); font-size: 13px; }
.inline { display: flex; gap: 8px; }

dialog {
  width: min(520px, calc(100% - 32px));
  padding: 24px;
  border: 1px solid rgba(255, 123, 138, 0.5);
  border-radius: 16px;
  background: var(--surface);
  color: var(--text);
}
dialog::backdrop { background: rgba(3, 6, 15, 0.8); }
dialog h2 { margin: 0 0 10px; }
.danger-text { color: #ffd1d7; }

.print-sheet { display: none; }

@media (max-width: 800px) {
  .create { grid-template-columns: 1fr; }
  .result { grid-template-columns: 1fr; }
  .qr-box { max-width: 320px; }
}

@media print {
  body { background: #fff; color: #000; }
  .app, .login, dialog { display: none !important; }
  .print-sheet { display: block; padding: 10mm; text-align: center; }
  .print-sheet img { width: 140mm; height: 140mm; image-rendering: pixelated; }
  .print-sheet h1 { margin: 8mm 0 2mm; font-size: 22pt; }
  .print-sheet p { margin: 0; font-size: 13pt; }
}