/* Minimal, framework-free styles for Styling Adventures */
:root {
  --bg: #0b1020;
  --card: #101a32;
  --text: #e6ecff;
  --muted: #9db0d8;
  --accent: #7aa2ff;
  --accent-2: #34d399;
  --ring: rgba(122,162,255,.35);
  color-scheme: light dark;
}

/* Base */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: #0b1020;
  color: var(--text);
  line-height: 1.45;
}

/* Layout helpers the app uses */
.max-w-3xl { max-width: 48rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.p-6 { padding: 1.5rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-3 { gap: .75rem; }
.text-sm { font-size: .875rem; }
.text-xs { font-size: .75rem; }
.break-all { word-break: break-all; }
.list-disc { list-style: disc; }
.pl-5 { padding-left: 1.25rem; }

/* Cards, headings */
.card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 16px;
  padding: 1rem 1.25rem;
  backdrop-filter: blur(4px);
}
.card-title {
  margin: 0 0 .5rem 0;
  font-size: 1.125rem;
  font-weight: 600;
}

/* Buttons & inputs */
.btn,
.btn-primary {
  appearance: none;
  border: 1px solid rgba(255,255,255,.18);
  color: var(--text);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  padding: .55rem .9rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: .2px;
  transition: transform .06s ease, border-color .15s ease, box-shadow .15s ease;
}
.btn:hover,
.btn-primary:hover { border-color: var(--ring); }
.btn:active,
.btn-primary:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--accent) 85%, white 12%),
    color-mix(in oklab, var(--accent) 75%, black 12%));
  color: #0c1535;
  border-color: color-mix(in oklab, var(--accent) 55%, black 25%);
  box-shadow: 0 8px 26px color-mix(in oklab, var(--accent) 30%, black 70%);
}

.input {
  background: rgba(0,0,0,.2);
  border: 1px solid rgba(255,255,255,.15);
  color: var(--text);
  padding: .45rem .6rem;
  border-radius: 10px;
  outline: none;
}
.input:focus { border-color: var(--ring); box-shadow: 0 0 0 3px rgba(122,162,255,.15); }

/* Light mode */
@media (prefers-color-scheme: light) {
  body { background: #f7f7fb; color: #0b1225; }
  .card { background: #fff; border-color: rgba(0,0,0,.08); }
  .btn, .btn-primary {
    color: #0b1225;
    border-color: rgba(0,0,0,.12);
    background: linear-gradient(180deg, rgba(0,0,0,.02), rgba(0,0,0,.04));
  }
  .input { background: #fff; border-color: rgba(0,0,0,.12); color: #0b1225; }
}
/* generic page baseline used by callback */
.sa-body {
  margin: 0;
  font: 14px/1.4 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
.sr-only {
  position: absolute !important;
  clip: rect(1px, 1px, 1px, 1px);
  padding: 0 !important;
  border: 0 !important;
  height: 1px !important; width: 1px !important;
  overflow: hidden;
}
.hidden { display: none; }

.sa-error {
  color: #b91c1c;
  background: #fff;
  padding: 24px;
  max-width: 720px;
  margin: 10vh auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,.06);
}
.sa-pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: #1118270d; /* subtle */
  padding: 8px 10px;
  border-radius: 6px;
}
/* simple layout helpers for homepage actions */
.actions { margin: .5rem 0; }
.ml-2 { margin-left: .5rem; }

/* optional: subtler muted text class if not present already */
.sa-muted { color: #6b7280; }

/* optional: button/link base classes, if not already in your styles.css */
.sa-btn {
  padding: .4rem .75rem;
  border-radius: .5rem;
  border: 1px solid #e5e7eb;
  background: #fff;
  cursor: pointer;
}
.sa-btn-outline {
  background: #fff;
}
.sa-link { color: #3b82f6; text-decoration: underline; }
.sa-card {
  background: #f3f4f6;
  padding: 1rem;
  border-radius: .5rem;
}
.sa-pre {
  white-space: pre-wrap;
  background: #eef0f3;
  padding: 1rem;
  border-radius: .5rem;
}
/* simple form/layout helpers */
.form-row { display: flex; gap: .5rem; align-items: center; margin: .25rem 0; }
.sa-label { min-width: 3rem; }
.sa-input { flex: 1; }
.mt-2 { margin-top: .5rem; }

/* optional: tidy list spacing inside cards */
.sa-card ul { margin: .25rem 0 0 1rem; }
.dropzone {
  padding: 20px;
  border: 2px dashed #bbb;
  border-radius: 10px;
}
.dropzone.dragover { border-color: #666; }