/* Drive Explorer - site styles.
   The page is dressed as an Explorer window: chrome, breadcrumb, nav pane,
   details view, status bar. Colours come from Explorer's own vocabulary,
   with the selection highlight as the single accent. */

:root {
  color-scheme: light;
  --ink: #101418;
  --ink-2: #3d4655;
  --muted: #6b7483;
  --surface: #ffffff;
  --chrome: #edeff3;
  --chrome-2: #f7f8fa;
  --line: #dbdfe7;
  --sel: #1f4fd8;
  --sel-soft: #e6ecfd;
  --on-sel: #ffffff;
  --sel-hover: #1a44ba;
  --desktop: #dfe3ea;
  --shadow: 0 18px 50px rgba(16, 20, 24, .14), 0 2px 6px rgba(16, 20, 24, .08);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --ink: #e8ebf0;
    --ink-2: #b3bbc8;
    --muted: #8b94a3;
    --surface: #16181d;
    --chrome: #1e2128;
    --chrome-2: #191c22;
    --line: #2c313a;
    --sel: #6f96ff;
    --sel-soft: #1d2740;
    --on-sel: #0b0d11;
    --sel-hover: #8dabff;
    --desktop: #0b0d11;
    --shadow: 0 18px 50px rgba(0, 0, 0, .5);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 28px 20px 56px;
  background:
    radial-gradient(120% 90% at 50% -10%, color-mix(in srgb, var(--sel) 7%, var(--desktop)), var(--desktop));
  color: var(--ink);
  font: 400 15px/1.62 "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--sel); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--sel); outline-offset: 2px; border-radius: 3px; }

/* ---- window ---- */

.window {
  max-width: 1160px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.titlebar {
  display: flex;
  align-items: center;
  gap: 9px;
  height: 40px;
  padding: 0 14px;
  background: var(--chrome);
  border-bottom: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--ink-2);
}
.titlebar__buttons { margin-left: auto; display: flex; gap: 16px; color: var(--muted); font-size: 11px; }

.toolbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 9px 14px;
  background: var(--chrome-2);
  border-bottom: 1px solid var(--line);
}
.toolbar__nav { display: flex; gap: 10px; color: var(--muted); font-size: 14px; user-select: none; }
.crumbs {
  font: 500 12.5px/1 "IBM Plex Mono", ui-monospace, monospace;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--sel); text-decoration: underline; }
.crumbs__here { color: var(--ink); }

.panes { display: grid; grid-template-columns: 224px 1fr; }

/* ---- navigation pane ---- */

.nav {
  border-right: 1px solid var(--line);
  background: var(--chrome-2);
  padding: 16px 10px;
}
.nav__group {
  font: 500 10.5px/1 "IBM Plex Mono", ui-monospace, monospace;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0 10px;
  margin: 0 0 10px;
}
.nav__list { list-style: none; margin: 0 0 22px; padding: 0; }
.nav__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 10px;
  border-radius: 5px;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 14px;
}
.nav__link:hover { background: color-mix(in srgb, var(--sel) 8%, transparent); color: var(--ink); }
.nav__link[aria-current="page"] { background: var(--sel-soft); color: var(--sel); font-weight: 600; }
.nav__sep { height: 1px; background: var(--line); margin: 0 10px 18px; border: 0; }

/* ---- content ---- */

.content { padding: 40px 44px 48px; min-width: 0; }

.eyebrow {
  font: 500 11px/1 "IBM Plex Mono", ui-monospace, monospace;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 20px;
}

h1 {
  font-family: Archivo, "Segoe UI", system-ui, sans-serif;
  font-weight: 700;
  font-stretch: 125%;
  font-size: clamp(2.1rem, 5.2vw, 3.5rem);
  line-height: 1.02;
  letter-spacing: -.022em;
  margin: 0 0 20px;
  max-width: 17ch;
}

h2 {
  font-family: Archivo, "Segoe UI", system-ui, sans-serif;
  font-weight: 600;
  font-stretch: 125%;
  font-size: 1.28rem;
  letter-spacing: -.01em;
  margin: 0 0 6px;
}

h3 { font-size: 1rem; font-weight: 600; margin: 26px 0 6px; }

.lede { font-size: 1.06rem; color: var(--ink-2); max-width: 56ch; margin: 0 0 28px; }
p { max-width: 68ch; }

.sec { border-top: 1px solid var(--line); padding: 40px 0 4px; margin-top: 44px; }
.sec__note { color: var(--muted); font-size: 13.5px; margin: 0 0 22px; max-width: 62ch; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font: 500 14px/1 "IBM Plex Sans", system-ui, sans-serif;
  text-decoration: none;
}
.btn:hover { border-color: var(--sel); color: var(--sel); }
.btn--primary { background: var(--sel); border-color: var(--sel); color: var(--on-sel); }
.btn--primary:hover { background: var(--sel-hover); border-color: var(--sel-hover); color: var(--on-sel); }

/* ---- the signature: a working details view ---- */

.demo {
  margin: 34px 0 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface);
}
.demo__head, .demo__row {
  display: grid;
  grid-template-columns: 1fr 108px 88px 104px;
  gap: 12px;
  padding: 8px 14px;
  align-items: center;
}
.demo__head {
  background: var(--chrome-2);
  border-bottom: 1px solid var(--line);
  font: 500 11px/1 "IBM Plex Mono", ui-monospace, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
.demo__list { margin: 0; padding: 0; list-style: none; }
.demo__row {
  width: 100%;
  border: 0;
  background: none;
  text-align: left;
  font: inherit;
  color: var(--ink);
  cursor: default;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 55%, transparent);
}
.demo__row:hover { background: color-mix(in srgb, var(--sel) 6%, transparent); }
.demo__row[aria-selected="true"] { background: var(--sel-soft); }
.demo__name { display: flex; align-items: center; gap: 10px; min-width: 0; }
.demo__name span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.demo__meta { font: 400 12.5px/1 "IBM Plex Mono", ui-monospace, monospace; color: var(--muted); }
.demo__bar {
  display: flex;
  gap: 18px;
  padding: 9px 14px;
  background: var(--chrome-2);
  border-top: 1px solid var(--line);
  font: 400 12px/1 "IBM Plex Mono", ui-monospace, monospace;
  color: var(--muted);
}
.demo__hint { margin: 10px 2px 0; font-size: 12.5px; color: var(--muted); }

/* ---- tables and lists ---- */

.table { width: 100%; border-collapse: collapse; margin: 6px 0 8px; font-size: 14px; }
.table th {
  text-align: left;
  font: 500 11px/1 "IBM Plex Mono", ui-monospace, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0 14px 9px 0;
  border-bottom: 1px solid var(--line);
}
.table td { padding: 10px 14px 10px 0; border-bottom: 1px solid color-mix(in srgb, var(--line) 55%, transparent); vertical-align: top; }
.table td:last-child, .table th:last-child { padding-right: 0; }
.table kbd {
  font: 400 12px/1 "IBM Plex Mono", ui-monospace, monospace;
  background: var(--chrome);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 3px 6px;
  white-space: nowrap;
  color: var(--ink-2);
}

.scopes { margin: 0; }
.scopes dt {
  font: 500 12.5px/1.5 "IBM Plex Mono", ui-monospace, monospace;
  color: var(--ink);
  margin-top: 20px;
  word-break: break-all;
}
.scopes dt:first-child { margin-top: 0; }
.scopes dd { margin: 5px 0 0; color: var(--ink-2); max-width: 64ch; }

.plain { padding-left: 20px; }
.plain li { margin: 7px 0; max-width: 66ch; }

.callout {
  border: 1px solid var(--line);
  border-left: 3px solid var(--sel);
  background: color-mix(in srgb, var(--sel) 4%, transparent);
  border-radius: 0 7px 7px 0;
  padding: 16px 18px;
  margin: 24px 0;
}
.callout p { margin: 0; max-width: none; }
.callout p + p { margin-top: 10px; }

.stamp {
  font: 400 12.5px/1.6 "IBM Plex Mono", ui-monospace, monospace;
  color: var(--muted);
  margin-top: 34px;
}

/* ---- status bar ---- */

.statusbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  padding: 10px 16px;
  background: var(--chrome);
  border-top: 1px solid var(--line);
  font: 400 12px/1.5 "IBM Plex Mono", ui-monospace, monospace;
  color: var(--muted);
}
.statusbar a { color: var(--muted); }
.statusbar__end { margin-left: auto; }

@media (max-width: 820px) {
  body { padding: 14px 12px 32px; }
  .panes { grid-template-columns: 1fr; }
  .nav { border-right: 0; border-bottom: 1px solid var(--line); padding: 12px; }
  .nav__list { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
  .nav__sep { display: none; }
  .content { padding: 28px 20px 34px; }
  .demo__head, .demo__row { grid-template-columns: 1fr 78px; }
  .demo__meta--type, .demo__meta--date { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}