:root {
  --bg: #070c14;
  --bg-2: #0b1220;
  --card: #101a2b;
  --card-2: #142033;
  --line: #1f2f47;
  --line-2: #16233a;
  --text: #e9f0fa;
  --muted: #8fa3bf;
  --accent: #4d9bff;
  --accent-2: #2f6fe0;
  --gold: #e0b34a;
  --ok: #2ecc8f;
  --warn: #f0b429;
  --bad: #ff5d6c;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --r: 14px;
}

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

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  color: var(--text);
  background:
    radial-gradient(1000px 560px at 8% -12%, rgba(77, 155, 255, 0.13), transparent 58%),
    radial-gradient(820px 480px at 96% -6%, rgba(224, 179, 74, 0.08), transparent 52%),
    var(--bg);
}

h1, h2, h3, p { margin: 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: rgba(255, 255, 255, 0.07);
  padding: 1px 5px;
  border-radius: 5px;
  color: #cfe3ff;
}
.mono { font-family: var(--mono); word-break: break-all; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }

/* ---------------- shell ---------------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 28px;
  border-bottom: 1px solid var(--line-2);
  background: rgba(7, 12, 20, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  font-size: 18px;
  font-weight: 700;
  color: #06101d;
  background: linear-gradient(135deg, var(--accent), var(--gold));
}
.brand h1 { font-size: 15.5px; font-weight: 650; letter-spacing: -0.01em; }
.brand p { font-size: 12px; color: var(--muted); }
.topbar-right { display: flex; align-items: center; gap: 10px; font-size: 13px; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  background: var(--bg-2);
}
.pill-ok { color: var(--ok); border-color: rgba(46, 204, 143, 0.4); background: rgba(46, 204, 143, 0.1); }
.pill-warn { color: var(--warn); border-color: rgba(240, 180, 41, 0.4); background: rgba(240, 180, 41, 0.1); }
.pill-bad { color: var(--bad); border-color: rgba(255, 93, 108, 0.4); background: rgba(255, 93, 108, 0.1); }

.wrap { max-width: 1180px; margin: 0 auto; padding: 26px 24px 40px; }
.wrap-narrow { max-width: 460px; margin: 0 auto; padding: 40px 24px 60px; }

/* ---------------- cards ---------------- */
.card {
  background: linear-gradient(180deg, var(--card), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 20px;
  box-shadow: 0 16px 40px -30px rgba(0, 0, 0, 0.95);
}
.card + .card { margin-top: 16px; }
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.card-head h2 { font-size: 14.5px; font-weight: 650; }
.card-head .hint {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 2px 7px;
  border-radius: 6px;
}

/* ---------------- forms ---------------- */
label.field { display: block; margin-top: 12px; }
label.field > span {
  display: block;
  font-size: 11.5px;
  font-weight: 650;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
input[type="text"], input[type="email"], input[type="password"], input[type="number"], textarea {
  width: 100%;
  background: #0a111d;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-family: var(--sans);
  font-size: 14px;
}
textarea { font-family: var(--mono); font-size: 12.5px; resize: vertical; }
input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(77, 155, 255, 0.16);
}

.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--card-2);
  color: var(--text);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 15px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.06s;
}
.btn:hover { background: #1b2a42; border-color: #2c4160; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: #04101f;
  font-weight: 700;
  width: 100%;
  margin-top: 16px;
  padding: 11px 15px;
}
.btn-primary:hover { background: linear-gradient(135deg, #6aaeff, #3f80e8); }
.btn-ghost { background: transparent; }
.btn-sm { font-size: 12px; padding: 5px 10px; border-radius: 8px; }
.btn-danger { color: var(--bad); border-color: rgba(255, 93, 108, 0.35); }

.row { display: flex; gap: 9px; flex-wrap: wrap; align-items: center; }
.row-between { display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }

/* ---------------- tabs ---------------- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line-2); margin-bottom: 16px; }
.tabs button {
  appearance: none;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 12px;
  cursor: pointer;
}
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }

/* ---------------- landing ---------------- */
.hero { padding: 8px 0 26px; }
.hero h1 {
  font-size: clamp(26px, 3.6vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p { margin-top: 12px; color: var(--muted); font-size: 15px; max-width: 46ch; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
.step {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: var(--card);
}
.step .n {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 7px;
  font-size: 11.5px;
  font-weight: 700;
  color: #04101f;
  background: var(--gold);
  margin-bottom: 8px;
}
.step h3 { font-size: 13.5px; font-weight: 650; }
.step p { font-size: 12.5px; color: var(--muted); margin-top: 4px; }

.callout {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(240, 180, 41, 0.28);
  background: linear-gradient(180deg, rgba(240, 180, 41, 0.09), rgba(240, 180, 41, 0.03));
  color: #f2dfb4;
  font-size: 13px;
}
.callout strong { color: var(--warn); }

/* ---------------- misc ---------------- */
.error {
  margin-top: 12px;
  padding: 9px 12px;
  border-radius: 9px;
  background: rgba(255, 93, 108, 0.1);
  border: 1px solid rgba(255, 93, 108, 0.3);
  color: #ffb8c0;
  font-size: 12.5px;
}
.ok-msg {
  margin-top: 12px;
  padding: 9px 12px;
  border-radius: 9px;
  background: rgba(46, 204, 143, 0.1);
  border: 1px solid rgba(46, 204, 143, 0.3);
  color: #a9f0d2;
  font-size: 12.5px;
}

.kv { border: 1px solid var(--line); border-radius: 11px; overflow: hidden; }
.kv > div { display: grid; grid-template-columns: 160px 1fr; }
.kv dt, .kv dd { margin: 0; padding: 8px 12px; font-size: 13px; }
.kv dt { background: #0d1624; color: var(--muted); font-size: 12.5px; border-right: 1px solid var(--line-2); }
.kv dd { background: var(--card-2); word-break: break-word; }
.kv > div + div dt, .kv > div + div dd { border-top: 1px solid var(--line-2); }

.secret-box {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 6px;
}
.secret-box input { flex: 1; font-family: var(--mono); font-size: 12.5px; }

.dropzone {
  border: 1.5px dashed var(--line);
  border-radius: 12px;
  background: var(--card-2);
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--accent); background: rgba(77, 155, 255, 0.06); outline: none; }
.dropzone.dragover { border-color: var(--accent); background: rgba(77, 155, 255, 0.12); }
.dropzone .dz-icon { font-size: 24px; color: var(--accent); display: block; margin-bottom: 4px; }

.qr-result { display: grid; grid-template-columns: 200px 1fr; gap: 16px; margin-top: 16px; align-items: start; }
@media (max-width: 720px) { .qr-result { grid-template-columns: 1fr; } }
.qr-frame { background: #fff; padding: 10px; border-radius: 12px; line-height: 0; border: 1px solid var(--line); }
.qr-frame canvas { width: 100%; height: auto; image-rendering: pixelated; }

.list { display: flex; flex-direction: column; gap: 8px; }
.list-empty { color: var(--muted); font-size: 13px; padding: 22px 0; text-align: center; }

.item {
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: 10px;
  background: var(--card-2);
  padding: 10px 12px;
}
.item.ok { border-left-color: var(--ok); }
.item.warn { border-left-color: var(--warn); }
.item.bad { border-left-color: var(--bad); }
.item-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.item-ref { font-family: var(--mono); font-size: 12.5px; color: #cfe3ff; }
.item-amount { margin-left: auto; font-family: var(--mono); font-size: 13px; font-weight: 700; }
.item-meta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 4px; font-size: 11.5px; color: var(--muted); }
.item-note { margin-top: 5px; font-size: 12px; color: var(--muted); }
.item details { margin-top: 7px; }
.item summary { font-size: 11.5px; color: var(--muted); cursor: pointer; }
.item pre {
  margin: 7px 0 0;
  padding: 9px;
  background: #070d16;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: #a9c4e4;
  overflow-x: auto;
  max-height: 220px;
}

.footer { border-top: 1px solid var(--line-2); padding: 16px 28px 28px; color: var(--muted); font-size: 12.5px; text-align: center; }