:root {
  --bg: #0b0f14;
  --card: #121824;
  --text: #e7eefc;
  --muted: #9fb0cf;
  --accent: #7fb7ff;
  --danger: #ff7f7f;
  --ok: #7fffb7;
  --border: #223049;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 24px 16px 8px;
  border-bottom: 1px solid var(--border);
}

.title {
  max-width: 980px;
  margin: 0 auto;
}

h1 { margin: 0 0 6px; font-size: 28px; }
.subtitle { margin: 0; color: var(--muted); }

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.card.subtle { background: #0f1520; }

h2 { margin: 0 0 12px; font-size: 18px; }

label {
  display: block;
  margin: 10px 0;
  color: var(--muted);
  font-size: 14px;
}

input, textarea, button {
  width: 100%;
  margin-top: 6px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--text);
  padding: 10px;
  font-size: 14px;
}

textarea { resize: vertical; }

.row {
  display: flex;
  gap: 10px;
  margin: 10px 0;
}

.row button { width: auto; flex: 1; cursor: pointer; }
button:hover { border-color: var(--accent); }

.grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, 1fr);
}

.grid.kdf { grid-template-columns: repeat(3, 1fr); }

.kdf-details {
  margin-top: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
}

.kdf-details summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 13px;
}

.kdf-details[open] summary {
  margin-bottom: 4px;
}

.kdf-note {
  margin-bottom: 10px;
}

.checkbox {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 10px;
}

.checkbox input { width: auto; margin: 0; }

.note {
  color: var(--muted);
  font-size: 13px;
  margin-top: 8px;
}

.status {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
  min-height: 18px;
}

.status.ok { color: var(--ok); }
.status.err { color: var(--danger); }

button.flash-ok {
  background: var(--ok);
  color: #000;
  border-color: var(--ok);
  transition: background 0.15s, color 0.15s;
}

.dedication {
  margin-top: 10px;
  color: var(--muted);
  font-style: italic;
}

.quickstart {
  background: #0d1a28;
  border-color: var(--accent);
}

.quickstart ol {
  margin: 0;
  padding-left: 22px;
  line-height: 1.8;
  color: var(--text);
  font-size: 14px;
}

.toggle-zw {
  flex: 0 0 auto !important;
  width: auto !important;
  font-size: 12px;
  padding: 6px 10px;
  color: var(--muted);
  border-style: dashed;
}

.toggle-zw:hover { color: var(--accent); }

.b64-details {
  margin-top: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
}

.b64-details summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 13px;
}

.b64-details textarea {
  margin-top: 6px;
}

footer {
  max-width: 980px;
  margin: 8px auto 24px;
  padding: 0 16px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

footer a {
  color: var(--accent);
  text-decoration: none;
}

footer a:hover { text-decoration: underline; }

/* Password show/hide toggle */
.pw-wrap {
  display: flex;
  gap: 0;
  margin-top: 6px;
}

.pw-wrap input {
  margin-top: 0;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  flex: 1;
}

.pw-toggle {
  margin-top: 0;
  width: auto !important;
  flex: 0 0 auto;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border-left: none;
  padding: 10px 12px;
  font-size: 12px;
  cursor: pointer;
  color: var(--muted);
  white-space: nowrap;
}

.pw-toggle:hover { color: var(--accent); border-color: var(--accent); }