/* The client's own screen. Hand-written and small on purpose: it is a list, one button and a
   viewfinder, and the interesting surface is a machine's own page filling the viewport underneath.

   Everything here is sized for a thumb — 44px is Apple's own minimum touch target and nothing
   tappable is under it — and the safe-area insets are what keep the list clear of a notch and the
   home indicator when this is installed and running full-bleed.

   The palette is the brand's, not a generic one: `--accent` is `#FA5019`, the same colour the
   middle lobe of the mark carries in every renderer of it (`src/mark.rs`), and the two inks are
   the design tokens' own rather than whatever a system label happens to be. */

:root {
  --bg: #f6f6f7;
  --surface: #ffffff;
  --fg: #17140f;
  --muted: #6b7280;
  --line: #e5e5e8;
  --accent: #fa5019;
  --on-accent: #ffffff;
  --danger: #b42318;
  --radius: 0.9rem;
  /* Two shadows, because one cannot be both: a hairline that keeps a white card off a white
     ground, and a soft lift under it. */
  --lift: 0 1px 2px rgba(16, 18, 22, 0.05), 0 10px 24px -16px rgba(16, 18, 22, 0.35);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0f11;
    --surface: #17191d;
    --fg: #ede7da;
    --muted: #99a1ac;
    --line: #262a30;
    /* Lifted off `#FA5019` for a dark ground: the brand value is what the *mark* keeps — it is one
       drawing in both themes — but as a fill behind white text it needs the extra luminance. */
    --accent: #ff6a3d;
    --on-accent: #1a0d06;
    --danger: #f97066;
    --lift: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 28px -18px rgba(0, 0, 0, 0.9);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  /* A tap that also selects text feels broken on a phone; inputs opt back in below. */
  -webkit-user-select: none;
  user-select: none;
  -webkit-text-size-adjust: 100%;
}

code, .key { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.shell {
  max-width: 30rem;
  margin: 0 auto;
  padding: max(1.25rem, env(safe-area-inset-top)) 1.15rem max(2rem, env(safe-area-inset-bottom));
}

/* --- the brand ------------------------------------------------------------------------------ */

header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
/* The mark is `currentColor` ink with one accented lobe, so it takes the page's ink and needs no
   second drawing for dark mode. */
.mark { width: 2.15rem; height: 2.15rem; flex: none; }
header h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
header .sub { margin: 0.1rem 0 0; color: var(--muted); font-size: 0.85rem; }

/* --- what went wrong ------------------------------------------------------------------------ */

.problem {
  background: color-mix(in srgb, var(--danger) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent);
  color: var(--danger);
  border-radius: var(--radius);
  padding: 0.75rem 0.9rem;
  font-size: 0.9rem;
  /* An error from a node is a sentence, sometimes with a key in it; let it wrap rather than clip. */
  overflow-wrap: anywhere;
}

.empty {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0 0 1.25rem;
}
.empty code { font-size: 0.85em; }

/* --- the machines --------------------------------------------------------------------------- */

.nodes { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.75rem; }

/* One machine is one card: its own row, then whatever it runs, under one border. Two cards read
   as two machines at a glance, which a flat list of mixed rows does not. */
.machine {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--lift);
  overflow: hidden;
}
.machine .row { display: flex; align-items: stretch; }

button {
  font: inherit;
  border-radius: 0.7rem;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--fg);
  min-height: 44px;
  padding: 0.6rem 0.9rem;
  cursor: pointer;
}
button:disabled { opacity: 0.5; cursor: default; }

/* Inside a card the buttons are the card, so they carry no border of their own. */
.machine button { border: 0; border-radius: 0; background: transparent; }
.machine button:active { background: color-mix(in srgb, var(--fg) 6%, transparent); }

.node {
  flex: 1;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  text-align: left;
  padding: 0.85rem 0.4rem 0.85rem 1rem;
  min-width: 0;
}
.node .name { font-weight: 600; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.node .meta {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  flex: none;
}

.more { flex: none; width: 2.75rem; color: var(--muted); padding: 0; }
.more svg { width: 1.15rem; height: 1.15rem; display: block; margin: 0 auto; }

/* --- what a machine runs -------------------------------------------------------------------- */

.boards {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.boards li + li { border-top: 1px solid var(--line); }
.board {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  text-align: left;
  padding: 0.6rem 1rem;
  min-height: 44px;
  font-size: 0.92rem;
}
.board .name { overflow-wrap: anywhere; }

/* One word, and only when there is one to say: a dashboard that is running and granted is a row
   with a name on it and nothing else. */
.tag {
  flex: none;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.15rem 0.45rem;
  border-radius: 0.4rem;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}
.tag.off { color: var(--muted); background: color-mix(in srgb, var(--muted) 14%, transparent); }

/* Why a machine's rows are missing, in its own words. Under the row it belongs to, quiet enough
   that a sleeping laptop does not read as a broken page. */
.quiet {
  margin: 0;
  padding: 0.55rem 1rem 0.75rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.8rem;
  overflow-wrap: anywhere;
}

/* --- adding a machine ------------------------------------------------------------------------ */

.add { display: grid; gap: 0.5rem; margin-top: 1.5rem; }

/* Scanning is the action. A 953-character token gets onto a phone through a lens, and the field
   below is the fallback — so this is the one accent-coloured thing on the screen. */
.cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  width: 100%;
  min-height: 3.25rem;
  border: 0;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--on-accent);
  font-size: 1rem;
  font-weight: 600;
  box-shadow: var(--lift);
}
.cta:active { transform: translateY(1px); }
.cta .glyph { display: flex; }
.cta svg { width: 1.35rem; height: 1.35rem; }

.paste { font-size: 0.9rem; }
.paste summary {
  color: var(--muted);
  cursor: pointer;
  padding: 0.6rem 0.25rem;
  text-align: center;
  list-style: none;
}
.paste summary::-webkit-details-marker { display: none; }
.paste[open] summary { text-align: left; }
.paste > *:not(summary) { margin-top: 0.5rem; }

.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  width: 100%;
  font-weight: 600;
}

.ghost { color: var(--muted); background: transparent; }
.danger {
  color: var(--danger);
  background: transparent;
  border-color: color-mix(in srgb, var(--danger) 35%, transparent);
}

textarea, input {
  font: 15px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace;
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: 0.7rem;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--fg);
  -webkit-user-select: text;
  user-select: text;
  /* Under 16px iOS zooms the page on focus and never zooms back out. */
  font-size: 16px;
}
textarea:focus-visible, input:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.machine.editing { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem; }
.machine.editing input.rename { flex: 1; }
.machine.editing .danger { border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent); }

.note { color: var(--muted); font-size: 0.82rem; margin: 0; }
.label {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.3rem;
}

/* --- this browser ---------------------------------------------------------------------------- */

/* Closed by default, and it holds the two facts a reader needs only when something has gone wrong:
   which key a node is refusing, and where the passwords live. */
footer { margin-top: 2rem; border-top: 1px solid var(--line); padding-top: 0.5rem; }
footer summary {
  color: var(--muted);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0.6rem 0.25rem;
  list-style: none;
}
footer summary::-webkit-details-marker { display: none; }
footer summary::before { content: "▸ "; font-size: 0.75em; }
footer details[open] summary::before { content: "▾ "; }
footer .key {
  display: block;
  font-size: 0.76rem;
  color: var(--muted);
  overflow-wrap: anywhere;
  -webkit-user-select: text;
  user-select: text;
  margin-bottom: 0.5rem;
}
footer details > *:not(summary) { padding: 0 0.25rem; }

/* --- the camera ------------------------------------------------------------------------------ */

/* Full-bleed and black, because it is a viewfinder: everything on top of it is white on the
   picture, and the picture is the only thing being read. */
.scanner { position: fixed; inset: 0; z-index: 10; background: #000; }
.scanner video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

/* The square `scan::Reader` actually decodes is the centre of the frame; this is what says so.
   The huge spread shadow is the dimming around it — one box, no second element. */
.scanner .reticle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 70vmin;
  height: 70vmin;
  transform: translate(-50%, -50%);
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: 1rem;
  box-shadow: 0 0 0 100vmax rgba(0, 0, 0, 0.35);
  /* A tap anywhere on the picture is the retry for a video that would not autoplay, and this sits
     over most of it. */
  pointer-events: none;
}

.scanner .scanbar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  gap: 0.75rem;
  justify-items: center;
  padding: 1.5rem 1.25rem max(1.25rem, env(safe-area-inset-bottom));
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.65));
}
.scanner .hint {
  margin: 0;
  color: #fff;
  font-size: 0.95rem;
  text-align: center;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}
.scanner .scanbar button {
  min-width: 9rem;
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.35);
}

/* --- a machine's page ------------------------------------------------------------------------ */

.panel { position: fixed; inset: 0; display: flex; flex-direction: column; background: var(--bg); }
.panel .bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: max(0.4rem, env(safe-area-inset-top)) 0.6rem 0.4rem;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.panel .back { border: 0; background: transparent; color: var(--accent); padding-left: 0.4rem; }
.panel .title {
  font-weight: 600;
  font-size: 0.95rem;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
/* Which machine this page is running on — the fact that is not in its name. */
.panel .title .under { color: var(--muted); font-weight: 400; }
.panel .title .under::before { content: " · "; }
.panel iframe { flex: 1; width: 100%; border: 0; background: var(--surface); }