:root {
  --bg: #0f1720;
  --card: #182634;
  --card-border: #263849;
  --text: #eef3f8;
  --muted: #9fb0bf;
  --accent: #2f8f4e;
  --accent-hover: #37a75c;
  --danger: #c0392b;
  --danger-hover: #d9483a;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 18px;
  line-height: 1.4;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--card-border);
}

.app-header strong { font-size: 20px; }

.app-main {
  padding: 20px;
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
}

h1, h2, h3 { margin: 0 0 12px; }

.muted { color: var(--muted); font-size: 15px; }

label {
  display: block;
  margin-bottom: 14px;
  font-size: 15px;
  color: var(--muted);
}

input[type="text"],
input[type="email"],
input[type="password"],
select {
  width: 100%;
  margin-top: 6px;
  padding: 14px;
  font-size: 18px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: #0c141c;
  color: var(--text);
}

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 18px;
  font-size: 19px;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  touch-action: manipulation;
}

button:active, .btn:active { background: var(--accent-hover); }

button.secondary { background: #33465a; }

button.danger { background: var(--danger); }
button.danger:active { background: var(--danger-hover); }

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

.result {
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 14px;
  font-size: 15px;
}

.result.ok { background: rgba(47, 143, 78, 0.2); border: 1px solid var(--accent); }
.result.error { background: rgba(192, 57, 43, 0.2); border: 1px solid var(--danger); }

.location-chip {
  display: inline-block;
  padding: 8px 12px;
  margin: 4px 6px 4px 0;
  border-radius: 999px;
  background: #24384a;
  font-size: 15px;
}

.location-chip button {
  width: auto;
  display: inline;
  padding: 0 0 0 8px;
  background: none;
  color: var(--danger);
  font-size: 15px;
}

#scanner-video {
  width: 100%;
  border-radius: var(--radius);
  background: #000;
}

.scanner-box { display: none; }
.scanner-box.is-open { display: block; }

.top-nav { display: flex; gap: 10px; }
.top-nav a {
  flex: 1;
  text-align: center;
  padding: 10px;
  border-radius: 10px;
  background: #1f2f3f;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
}
.top-nav a.is-active { background: var(--accent); }
[hidden] { display: none !important; }
button:disabled { opacity: .5; cursor: not-allowed; }
.storage-picker { border: 1px solid var(--card-border); border-radius: 10px; margin: 12px 0; }
.storage-picker > summary { cursor: pointer; padding: 12px; list-style: none; }
.storage-picker > summary::-webkit-details-marker { display: none; }
.storage-picker > summary::before { content: '▸'; display: inline-block; margin-right: 8px; }
.storage-picker[open] > summary::before { content: '▾'; }
.storage-picker-panel { padding: 0 12px 12px; display: grid; gap: 10px; }
.location-choices { max-height: min(45vh, 420px); overflow-y: auto; overscroll-behavior: contain; }
.location-choices fieldset { min-width: 0; border: 1px solid var(--card-border); border-radius: 10px; margin: 0 0 12px; padding: 10px; }
.location-choices legend { font-weight: 700; overflow-wrap: anywhere; }
.location-option { display: flex; align-items: center; gap: 10px; min-height: 46px; margin: 4px 0; padding: 8px; background: #0c141c; border-radius: 8px; color: var(--text); overflow-wrap: anywhere; }
.location-option input { flex: 0 0 auto; width: 22px; height: 22px; accent-color: var(--accent); }
#selection-summary, .location-chip, #result-name { overflow-wrap: anywhere; }