:root {
  --bg: #050816;
  --bg-card: #0b1020;
  --accent: #22c55e;
  --accent-soft: rgba(34,197,94,0.2);
  --text: #e5e7eb;
  --muted: #6b7280;
  --border: #1f2933;
  --error: #f97373;
  --radius: 14px;
  --shadow-soft: 0 18px 40px rgba(0,0,0,0.6);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  background: radial-gradient(circle at top, #1f2937 0, #020617 40%, #000 100%);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.shell {
  width: 100%;
  max-width: 520px;
}

.card {
  background: linear-gradient(135deg, rgba(15,23,42,0.95), rgba(3,7,18,0.98));
  border-radius: 20px;
  padding: 24px 24px 20px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148,163,184,0.18);
  backdrop-filter: blur(16px);
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.title-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tag {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pill {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.35);
  color: var(--muted);
}

.badge {
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 999px;
  background: radial-gradient(circle at top left, rgba(45,212,191,0.45), rgba(37,99,235,0.6));
  border: 1px solid rgba(34,197,94,0.3);
}

.badge span {
  font-size: 11px;
  opacity: 0.9;
}

.form {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

label {
  font-size: 12px;
  color: var(--muted);
}

.input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.input-row input {
  flex: 1;
  padding: 10px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(15,23,42,0.85);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.input-row input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-soft);
  background: rgba(15,23,42,1);
}

.btn {
  padding: 9px 14px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  background: linear-gradient(135deg, #22c55e, #4ade80);
  color: #020617;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  box-shadow: 0 12px 30px rgba(34,197,94,0.35);
  transition: transform 0.08s ease, box-shadow 0.08s ease, filter 0.1s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 36px rgba(34,197,94,0.45);
  filter: brightness(1.03);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 8px 20px rgba(34,197,94,0.3);
}

.btn span.icon {
  font-size: 16px;
}

.hint {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.error {
  margin-top: 8px;
  padding: 8px 10px;
  font-size: 12px;
  border-radius: 10px;
  background: rgba(248,113,113,0.08);
  border: 1px solid rgba(248,113,113,0.5);
  color: var(--error);
  display: none;
}

.result {
  margin-top: 16px;
  padding-top: 10px;
  border-top: 1px dashed rgba(148,163,184,0.35);
  display: none;
}

.result-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.uri {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  line-height: 1.5;
  word-break: break-all;
  background: #020617;
  border-radius: 12px;
  padding: 10px 12px;
  border: 1px solid rgba(148,163,184,0.35);
}

.uri small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.actions {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.35);
  color: var(--muted);
}

.copy-btn {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.6);
  background: rgba(15,23,42,0.9);
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.1s ease, border-color 0.1s ease, transform 0.08s ease;
}

.copy-btn:hover {
  background: rgba(15,23,42,1);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.copy-btn span.icon {
  font-size: 14px;
}

.qr {
  margin-top: 12px;
  display: flex;
  justify-content: center;
}

/* контейнер, в который qrcode.js вставляет <img>/<canvas> */
#qrcode {
  padding: 8px;
  border-radius: 12px;
  background: #ffffff;          /* светлый фон под кодом */
  box-shadow: 0 10px 24px rgba(0,0,0,0.45);
}


canvas {
  border-radius: 12px;
  background: #020617;
  padding: 8px;
  box-shadow: 0 14px 30px rgba(0,0,0,0.6);
}

.footnote {
  margin-top: 10px;
  font-size: 11px;
  color: var(--muted);
  text-align: right;
  opacity: 0.8;
}

@media (max-width: 480px) {
  .card { padding: 20px 16px 16px; }
  h1 { font-size: 18px; }
}