/* =========================================================
   Chillarin UI Kit — base.css
   tokens.css の変数を使った最小ベース。
   tokens.css の後に読み込むこと。
   ========================================================= */

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

html, body { margin: 0; padding: 0; }

html {
  background: var(--bg);
  color-scheme: dark;
}
:root.light { color-scheme: light; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.35;
  margin: 1.6em 0 0.7em;
}
h1 { font-size: 2rem; letter-spacing: -0.01em; }
h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.3em; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; }

p { margin: 0 0 1em; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color .15s ease;
}
a:hover { text-decoration: underline; }
a:focus-visible {
  outline: 2px solid var(--accent-line);
  outline-offset: 2px;
  border-radius: 2px;
}

small { color: var(--text-dim); }
strong { color: var(--text); }

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2em 0;
}

/* === Code === */
code, pre, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.92em;
}
:not(pre) > code {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  color: var(--accent-text);
}
pre {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1em;
  overflow-x: auto;
  line-height: 1.5;
}
pre code { background: transparent; border: 0; padding: 0; color: var(--text); }

/* === Form controls === */
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),
select, textarea {
  background: var(--bg-elev);
  border: 1px solid var(--border-str);
  color: var(--text);
  padding: 0.5em 0.75em;
  border-radius: 6px;
  transition: border-color .15s ease;
}
input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: none;
  border-color: var(--accent);
}

button:not(.mode-toggle) {
  background: var(--accent);
  color: var(--accent-on);
  border: 0;
  padding: 0.6em 1.2em;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s ease;
}
button:not(.mode-toggle):hover { opacity: 0.85; }
button:not(.mode-toggle):disabled { opacity: 0.5; cursor: not-allowed; }
button:not(.mode-toggle).is-secondary {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--border-str);
}

/* === Card / panel === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25em;
}

/* === Table === */
table { width: 100%; border-collapse: collapse; margin: 1em 0; }
th, td {
  padding: 0.6em 0.8em;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
th { color: var(--text-dim); font-weight: 600; background: var(--bg-elev); }
tr:hover td { background: var(--bg-elev); }

/* === Mode toggle button (dark/light pill) === */
.mode-toggle {
  flex: 0 0 auto;
  position: relative;
  width: 60px;
  height: 30px;
  padding: 0;
  border: 1px solid var(--border-str);
  border-radius: 22px;
  background: var(--bg-elev);
  cursor: pointer;
  transition: border-color .15s ease;
}
.mode-toggle:hover { border-color: var(--accent-line); }
.mode-toggle:focus-visible {
  outline: 2px solid var(--accent-line);
  outline-offset: 2px;
}
.mode-toggle__track {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: 100%;
  padding: 0 7px;
}
.mode-toggle__icon {
  width: 14px;
  height: 14px;
  color: var(--muted);
  display: block;
  z-index: 0;
  pointer-events: none;
}
.mode-toggle__thumb {
  position: absolute;
  top: 50%;
  left: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow), 0 1px 2px rgba(0, 0, 0, .35);
  transform: translate(30px, -50%);
  transition: transform 280ms cubic-bezier(.5, 1.4, .55, 1);
  pointer-events: none;
}
:root.light .mode-toggle__thumb { transform: translate(0, -50%); }

/* === Container === */
.container { max-width: 1100px; margin: 0 auto; padding: 0 1rem; }