/* Demo page only. The modal's styles live in /dist/css/modal.css, linked separately in index.html. */

/* Tailwind-inspired palette (slate + indigo), without Tailwind. */
:root {
  --demo-page: #f8fafc;          /* slate-50 */
  --demo-card: #fff;
  --demo-ring: rgb(15 23 42 / 0.08);
  --demo-heading: #0f172a;       /* slate-900 */
  --demo-text: #475569;          /* slate-600 */
  --demo-subtle: #64748b;        /* slate-500 */
  --demo-label: #334155;         /* slate-700 */
  --demo-border: #cbd5e1;        /* slate-300 */
  --demo-chip: #f1f5f9;          /* slate-100 */
  --demo-button: #0f172a;        /* slate-900 */
  --demo-button-hover: #334155;  /* slate-700 */
  --demo-button-text: #fff;
  --demo-link: #4f46e5;          /* indigo-600 */
  --demo-focus: #6366f1;         /* indigo-500 */
  --demo-code: #0f172a;          /* slate-900 */
  --demo-code-text: #e2e8f0;     /* slate-200 */
  --demo-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 8l4 4 4-4'/%3E%3C/svg%3E");

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --demo-page: #020617;          /* slate-950 */
    --demo-card: #0f172a;          /* slate-900 */
    --demo-ring: rgb(255 255 255 / 0.1);
    --demo-heading: #f8fafc;       /* slate-50 */
    --demo-text: #94a3b8;          /* slate-400 */
    --demo-subtle: #94a3b8;        /* slate-400 */
    --demo-label: #cbd5e1;         /* slate-300 */
    --demo-border: #334155;        /* slate-700 */
    --demo-chip: #1e293b;          /* slate-800 */
    --demo-button: #f8fafc;        /* slate-50 */
    --demo-button-hover: #cbd5e1;  /* slate-300 */
    --demo-button-text: #0f172a;   /* slate-900 */
    --demo-link: #818cf8;          /* indigo-400 */
    --demo-focus: #818cf8;         /* indigo-400 */
    --demo-code: #020617;          /* slate-950 */
    --demo-code-text: #e2e8f0;     /* slate-200 */
    --demo-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  display: grid;
  grid-template-rows: 1fr auto;
  grid-template-columns: minmax(0, 1fr); /* lets wide <pre> blocks scroll instead of stretching the page */
  min-block-size: 100dvh;
  margin: 0;
  background: var(--demo-page);
  color: var(--demo-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif; /* GitHub's system font stack */
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  inset-inline-start: 1rem;
  inset-block-start: -10rem;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  background: var(--demo-button);
  color: var(--demo-button-text);
  font-size: 0.875rem;
  font-weight: 600;
  z-index: 1;
}

.skip-link:focus {
  inset-block-start: 1rem;
}

main {
  inline-size: min(42rem, 100% - 2rem);
  margin: clamp(1.5rem, 8vh, 5rem) auto;
}

.card {
  padding: clamp(1.5rem, 5vw, 2.5rem);
  border-radius: 1rem;
  background: var(--demo-card);
  box-shadow:
    0 0 0 1px var(--demo-ring),
    0 1px 3px rgb(15 23 42 / 0.06),
    0 1px 2px rgb(15 23 42 / 0.04);
}

.card + .card {
  margin-block-start: 1.5rem;
}

h1,
h2 {
  margin-block: 0 0.75rem;
  color: var(--demo-heading);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

h1 {
  font-size: clamp(1.875rem, 5vw, 2.25rem);
  font-weight: 800;
}

h2 {
  font-size: 1.25rem;
  font-weight: 700;
}

p {
  margin-block: 0 1rem;
}

a {
  color: var(--demo-link);
  font-weight: 600;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

:focus-visible {
  outline: 2px solid var(--demo-focus);
  outline-offset: 2px;
}

/* Countdown */
.status {
  margin-block: 1.75rem 0;
  padding-block-start: 1.75rem;
  border-block-start: 1px solid var(--demo-ring);
}

.countdown {
  margin: 0;
  color: var(--demo-label);
  font-size: 0.875rem;
  font-weight: 500;
}

.countdown output {
  display: inline-block;
  margin-inline-start: 0.25rem;
  padding: 0.125rem 0.625rem;
  border-radius: 999px;
  background: var(--demo-chip);
  color: var(--demo-heading);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

/* Controls */
.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 1rem;
  margin-block-start: 1.25rem;
}

label {
  display: grid;
  gap: 0.375rem;
  color: var(--demo-label);
  font-size: 0.875rem;
  font-weight: 500;
}

select,
button {
  min-block-size: 2.75rem;
  font: inherit;
  font-size: 0.875rem;
}

select {
  appearance: none;
  padding: 0.5rem 2.25rem 0.5rem 0.75rem;
  border: 1px solid var(--demo-border);
  border-radius: 0.5rem;
  background: var(--demo-card) var(--demo-chevron) no-repeat right 0.625rem center / 1.25rem;
  color: var(--demo-heading);
  box-shadow: 0 1px 2px rgb(15 23 42 / 0.05);
  cursor: pointer;
}

.button {
  padding: 0.5rem 1.125rem;
  border: 0;
  border-radius: 0.5rem;
  background: var(--demo-button);
  color: var(--demo-button-text);
  font-weight: 600;
  box-shadow: 0 1px 2px rgb(15 23 42 / 0.1);
  cursor: pointer;
  transition: background-color 0.15s ease;
}

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

/* Code */
code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.875em;
}

:not(pre) > code {
  padding: 0.125rem 0.375rem;
  border-radius: 0.375rem;
  background: var(--demo-chip);
  color: var(--demo-heading);
}

pre {
  margin: 0 0 1rem;
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  background: var(--demo-code);
  color: var(--demo-code-text);
  box-shadow: 0 0 0 1px var(--demo-ring);
  overflow-x: auto;
  line-height: 1.7;
}

/* Footer */
footer {
  padding: 1.5rem 1rem;
  border-block-start: 1px solid var(--demo-ring);
  font-size: 0.875rem;
  text-align: center;
}

footer p {
  margin: 0;
  color: var(--demo-subtle);
}

footer a {
  color: var(--demo-heading);
}

.social {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 1.5rem;
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
}

.social a {
  display: inline-block;
  padding-block: 0.375rem; /* comfortable touch target */
  color: var(--demo-subtle);
  font-weight: 500;
}

.social a:hover {
  color: var(--demo-heading);
}

@media (prefers-reduced-motion: reduce) {
  .button {
    transition: none;
  }
}

@media (forced-colors: active) {
  .card,
  pre {
    border: 1px solid CanvasText;
  }
}