/* UTM Builder — tool-specific styles. Re-themed to SnapStatic dark + indigo by aliasing
   to the styles-base --ss-* tokens. Nav, footer, toast, and container come from the frame.
   (utm's old .container was a card; renamed to .tool-card to avoid colliding with the
   frame's layout .container.) */
:root {
  --bg: var(--ss-bg);
  --bg-surface: var(--ss-surface);
  --bg-surface-hover: var(--ss-surface-2);
  --border: var(--ss-border);
  --border-strong: var(--ss-border);
  --text: var(--ss-text);
  --text-muted: var(--ss-text-dim);
  --text-dim: var(--ss-text-dim);
  --accent: var(--ss-accent);
  --accent-hover: var(--ss-accent-hover);
  --accent-soft: #818cf8;
  --accent-softer: #a5b4fc;
  --radius: 8px;
  --radius-lg: 12px;
}

* { scrollbar-width: thin; scrollbar-color: rgba(255, 255, 255, 0.08) transparent; }
*::-webkit-scrollbar { width: 6px; height: 6px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.08); border-radius: 3px; }
*::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.15); }

.tool-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.form-section { padding: 1.5rem 1.75rem; }
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
  font-size: 0.8125rem;
}
.form-group label .required { color: var(--accent-soft); font-weight: 500; }

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
  font-family: inherit;
}
.form-group input:focus,
.form-group select:focus { border-color: rgba(99, 102, 241, 0.5); }
.form-group input::placeholder { color: #52525b; }

.form-hint { font-size: 0.8125rem; color: var(--text-dim); margin-top: 0.4rem; line-height: 1.5; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.result-section {
  background: rgba(255, 255, 255, 0.02);
  padding: 1.5rem 1.75rem;
  border-top: 1px solid var(--border);
}
.result-section h2 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.result-box { display: flex; gap: 0.625rem; align-items: stretch; }
.result-input {
  flex: 1;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.8125rem;
  font-family: var(--ss-mono);
  background: rgba(255, 255, 255, 0.04);
  color: var(--accent-softer);
  word-break: break-all;
  min-height: 44px;
  max-height: 200px;
  overflow-y: auto;
  line-height: 1.5;
}

.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
  font-family: inherit;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.presets { display: flex; flex-wrap: wrap; gap: 0.375rem; margin-top: 0.625rem; }
.preset-btn {
  padding: 0.25rem 0.625rem;
  background: rgba(99, 102, 241, 0.1);
  color: var(--accent-soft);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, border-color 0.15s;
}
.preset-btn:hover { background: rgba(99, 102, 241, 0.18); border-color: rgba(99, 102, 241, 0.35); }

.about {
  margin-top: 1.5rem;
  padding: 1.5rem 1.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.about h2 { color: var(--text); font-size: 0.9375rem; font-weight: 600; margin-bottom: 0.5rem; }
.about p { margin-bottom: 0.625rem; }
.about p:last-child { margin-bottom: 0; }