/* Public site styles (application layout, body.site). Layout rules stay
 * scoped under .site so other layouts can load every stylesheet safely.
 *
 * Themes (see app/models/theme.rb): the tokens below are the light theme.
 * <html data-theme> is the chosen theme, or (nothing chosen) the visitor's
 * local time's pick, set in <head> before drawing (shared/_theme_head).
 * Without JS and with nothing chosen there's no data-theme, and the site
 * follows the device's light/dark setting. Each block sets color-scheme too, so form controls, scrollbars and
 * mini rooms (whose iframes take the parent's scheme) follow along. */

:root {
  color-scheme: light dark;
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1d1c1a;
  --muted: #6b6760;
  --border: #d9d5cc;
  --accent: #2f5bd3;
  --accent-contrast: #ffffff;
  --bubble-bot: #efece5;
  --bubble-user: #2f5bd3;
  --bubble-user-text: #ffffff;
  --danger: #b3261e;
  --sulk: #b45309;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;

  --radius: 12px;
  --measure: 46rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* Dark ("no brightness"): the device's preference when nothing is chosen.
   Keep in step with :root[data-theme="dark"] below. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #151514;
    --surface: #1f1e1c;
    --text: #ecebe7;
    --muted: #a19d95;
    --border: #3a3834;
    --accent: #8fb0ff;
    --accent-contrast: #10131a;
    --bubble-bot: #2a2926;
    --bubble-user: #3d5fb8;
    --bubble-user-text: #ffffff;
    --danger: #f2b8b5;
    --sulk: #f6ad55;
  }
}

:root[data-theme="light"] { color-scheme: light; }

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #151514;
  --surface: #1f1e1c;
  --text: #ecebe7;
  --muted: #a19d95;
  --border: #3a3834;
  --accent: #8fb0ff;
  --accent-contrast: #10131a;
  --bubble-bot: #2a2926;
  --bubble-user: #3d5fb8;
  --bubble-user-text: #ffffff;
  --danger: #f2b8b5;
  --sulk: #f6ad55;
}

/* Desert, after vim's `desert` colorscheme: grey20 background, white text,
   khaki statements, the statusline's #c2bfa5, indianred, olive. */
:root[data-theme="desert"] {
  color-scheme: dark;
  --bg: #333333;
  --surface: #3c3c3c;
  --text: #f5f5f0;
  --muted: #c2bfa5;
  --border: #5a5a50;
  --accent: #f0e68c;
  --accent-contrast: #333333;
  --bubble-bot: #4d4d4d;
  --bubble-user: #556b2f;
  --bubble-user-text: #ffffff;
  --danger: #ff9b8f;
  --sulk: #ffb86c;
}

body.site {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
}

.site a { color: var(--accent); }

.site-header,
.site-main {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.site-header { padding-top: var(--space-5); padding-bottom: var(--space-4); }

.wordmark {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text) !important;
}

.site-main { padding-bottom: var(--space-6); }
.site-header__brand { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-2) var(--space-4); }
.site-nav { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-3); }
.site-nav a[aria-current="page"] { color: var(--text); text-decoration: none; font-weight: 600; }
.site-main > section + section { margin-top: var(--space-5); }

.site h1, .site h2 { line-height: 1.2; }
.muted { color: var(--muted); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* --- form controls ---------------------------------------------------- */

.site input[type="text"],
.site input[type="email"],
.site textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-2) var(--space-3);
}
.site textarea { min-height: 7rem; resize: vertical; }

.button {
  justify-self: start;
  font: inherit;
  font-weight: 600;
  color: var(--accent-contrast);
  background: var(--accent);
  border: 0;
  border-radius: 999px;
  padding: var(--space-2) var(--space-4);
  cursor: pointer;
}
.button:disabled { opacity: 0.5; cursor: default; }
/* A link styled as a button keeps the button's text color, not .site a's. */
.site a.button { display: inline-block; color: var(--accent-contrast); text-decoration: none; }

/* Dev-only mini room preview (/dev/mini-rooms). */
.dev-rooms__frame { border: 1px dashed var(--border); border-radius: var(--radius); padding: var(--space-2); max-width: 36rem; }

/* The theme icon (shared/_theme_toggle). Which icon shows is set per theme
   in shared/_theme_head; without JS and with nothing chosen, the device
   setting decides. */
.site-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; }
.theme-toggle__form { display: contents; }
.theme-toggle {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}
.theme-toggle:hover,
.theme-toggle:focus-visible { border-color: var(--accent); color: var(--accent); }
.theme-toggle__icon { display: none; }
:root:not([data-theme]) .theme-toggle__icon[data-icon-for="light"] { display: inline; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .theme-toggle__icon[data-icon-for="light"] { display: none; }
  :root:not([data-theme]) .theme-toggle__icon[data-icon-for="dark"] { display: inline; }
}