/* =====================================================================
   Signal · site styles
   Paper page, left-aligned, sentence headlines in heavy Bricolage. One dark
   instrument per page (the light table) does the showing; everything else
   is set like a good spec sheet: definition rows, proof figures with ink
   rules, honest tables with status marks. Requires tokens.css first.
   ===================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 76px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 var(--fs-body)/1.6 var(--body); overflow-x: clip; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
img, svg { max-width: 100%; }
h1, h2, h3 { font-family: var(--display); line-height: 1.1; text-wrap: balance; margin: 0; }
p, ul, ol, dl, dd, figure { margin: 0; }
button { font: inherit; }
code, kbd, pre { font-family: var(--mono); font-size: 0.88em; }
:not(pre) > code { background: var(--accent-soft); padding: 0.1em 0.35em; border-radius: var(--r-xs); }
.num { font-variant-numeric: tabular-nums; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--accent); color: var(--accent-ink); padding: 10px 14px; border-radius: var(--r-m); font-weight: 600; text-decoration: none; }
.skip:focus { top: 12px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: max(var(--gutter), env(safe-area-inset-left, 0px)); padding-right: max(var(--gutter), env(safe-area-inset-right, 0px)); }

/* ---------------------------------------------------------------- header */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: var(--s-5); height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 700 21px/1 var(--display); letter-spacing: -0.01em; white-space: nowrap; }
.brand svg { width: 28px; height: 28px; flex: none; }
.top nav { display: flex; gap: 20px; margin-left: auto; align-items: center; }
.top nav a { color: var(--ink); text-decoration: none; font-weight: 500; font-size: 15px; }
.top nav a:hover { color: var(--accent); }
.theme-btn { flex: none; border: 1px solid var(--line); background: var(--surface); color: var(--ink); border-radius: var(--r-pill); width: 34px; height: 34px; cursor: pointer; display: grid; place-items: center; }
.theme-btn svg { width: 16px; height: 16px; transition: transform 0.4s var(--plug); }
:root[data-theme="dark"] .theme-btn svg { transform: rotate(180deg); }
:root[data-theme="dark"] .lt { box-shadow: 0 0 0 1px var(--line), var(--table-shadow); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .lt { box-shadow: 0 0 0 1px var(--line), var(--table-shadow); } }

/* ---------------------------------------------------------------- buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: var(--r-m); font: 600 16px/1 var(--body); text-decoration: none; border: 1px solid transparent; cursor: pointer; white-space: nowrap; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); text-decoration: none; }
.btn-ghost { border-color: var(--line); color: var(--ink); background: var(--surface); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-lime { background: var(--lime); color: var(--lime-ink); border: 0; border-radius: 8px; padding: 8px 12px; font: 600 14px var(--body); }
.btn-lime:hover { filter: brightness(1.06); }
.btn-lime:disabled { opacity: 0.45; cursor: default; }

/* ---------------------------------------------------------------- hero */
.hero { padding-block: 64px 32px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--s-7); align-items: center; }
.hero h1 { font-size: var(--fs-h1); font-weight: 800; letter-spacing: -0.03em; }
.hero .lede { margin-top: 20px; font-size: var(--fs-lede); color: var(--muted); max-width: 34em; }
.hero .ctas { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: 28px; }
.fineprint { margin-top: var(--s-4); font-size: var(--fs-small); color: var(--muted); }

/* ---------------------------------------------------------------- the light table */
.lt {
  position: relative; min-width: 0; padding: var(--s-4); border-radius: var(--r-xl); color: var(--table-ink);
  background-color: var(--table);
  background-image: linear-gradient(var(--table-grid) 1px, transparent 1px), linear-gradient(90deg, var(--table-grid) 1px, transparent 1px);
  background-size: 24px 24px; box-shadow: var(--table-shadow);
}
.lt-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.lt-bar .who { font: 600 14px var(--body); color: var(--table-ink); }
.lt-bar .who span { color: var(--table-muted); font-weight: 400; }
.lt-bar .btn-lime { margin-left: auto; display: inline-flex; gap: 6px; align-items: center; }
.lt-stage { position: relative; height: 340px; margin-top: var(--s-3); touch-action: none; }
.lt-cmd { margin-top: var(--s-3); background: rgba(0, 0, 0, 0.35); border-radius: 8px; padding: 10px 12px; font: 13px/1.5 var(--mono); color: #cfe0ff; overflow-x: auto; white-space: nowrap; scrollbar-width: none; }
.lt-cmd b { color: var(--lime); font-weight: 500; }
.lt-note { margin-top: var(--s-2); font-size: 13px; color: var(--table-muted); }
.lt-readouts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin-top: var(--s-3); border-radius: 8px; overflow: hidden; background: var(--table-grid); }
.lt-readouts div { background: color-mix(in srgb, var(--table) 82%, black); padding: 10px 12px; display: grid; gap: 2px; }
.lt-readouts span { font-size: 11px; color: var(--table-muted); }
.lt-readouts b { font: 700 20px/1.1 var(--display); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }

/* Tiles on the table: anything the visitor can place. */
.tile {
  position: absolute; border-radius: var(--r-s); background: var(--table-glass); cursor: grab; user-select: none; -webkit-user-select: none;
  box-shadow: 0 0 0 1.5px var(--glow) inset, 0 10px 24px -12px rgba(0, 0, 0, 0.6);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 6px 8px; overflow: hidden;
  transition: left var(--d-move) var(--ease), top var(--d-move) var(--ease), width var(--d-move) var(--ease), height var(--d-move) var(--ease), box-shadow var(--d-move);
}
.tile:focus-visible { outline: 2px solid var(--lime); outline-offset: 2px; }
.tile.dragging { transition: none; cursor: grabbing; z-index: 5; box-shadow: 0 0 0 1.5px var(--lime) inset, 0 18px 30px -12px rgba(0, 0, 0, 0.7); }
.tile.new { animation: plug var(--d-plug) var(--plug); }
@keyframes plug { from { transform: scale(0.6); opacity: 0; } to { transform: none; opacity: 1; } }
.tile .t1 { font: 600 12px/1.2 var(--body); font-variant-numeric: tabular-nums; }
.tile .t2 { font-size: 10.5px; color: var(--table-muted); }
.tile.cells { background-image: linear-gradient(rgba(143, 227, 255, 0.09) 1px, transparent 1px), linear-gradient(90deg, rgba(143, 227, 255, 0.09) 1px, transparent 1px); background-size: 33.4% 16.7%; background-position: -1px -1px; }
.tile.warn { box-shadow: 0 0 0 1.5px var(--built) inset, 0 10px 24px -12px rgba(0, 0, 0, 0.6); }
.tile.warn .t2 { color: var(--built); }
.tile .x { position: absolute; top: 4px; right: 4px; width: 20px; height: 20px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, 0.08); color: var(--table-ink); cursor: pointer; font-size: 13px; line-height: 20px; padding: 0; opacity: 0; transition: opacity 0.2s; }
.tile:hover .x, .tile:focus-within .x { opacity: 1; }
.tile .x:hover { background: rgba(255, 255, 255, 0.2); }
/* Zones drawn on the table (a roof, a room, a box). */
.zone { position: absolute; border: 1.5px dashed color-mix(in srgb, var(--table-muted) 55%, transparent); border-radius: 8px; pointer-events: none; }
.zone-label { position: absolute; left: 10px; top: -10px; padding: 0 6px; background: var(--table); font: 500 11px var(--mono); color: var(--table-muted); }
.block { position: absolute; border-radius: 4px; background: repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0 4px, transparent 4px 9px); box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08) inset; display: grid; place-items: center; font: 500 10px var(--mono); color: var(--table-muted); pointer-events: none; }
/* A slow sweep of light across the table: the instrument is live. */
.sweep { position: absolute; inset: 0; pointer-events: none; border-radius: var(--r-xl); overflow: hidden; }
.sweep::before { content: ""; position: absolute; top: -20%; bottom: -20%; width: 40%; left: var(--sun, 30%); transform: translateX(-50%); background: radial-gradient(closest-side, color-mix(in srgb, var(--lime) 13%, transparent), transparent); transition: left 0.9s linear; }

/* ---------------------------------------------------------------- bands */
.band { padding-top: var(--s-8); }
.band h2 { font-size: var(--fs-h2); letter-spacing: -0.02em; font-weight: 700; }
.band .intro { margin-top: 14px; color: var(--muted); max-width: 40em; font-size: var(--fs-intro); }
.band-head { display: flex; flex-wrap: wrap; align-items: end; gap: var(--s-4); justify-content: space-between; }
.note { margin-top: 18px; font-size: var(--fs-small); color: var(--muted); max-width: 52em; }

/* Segmented toggle */
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: var(--r-pill); padding: 3px; background: var(--surface); }
.seg button { border: 0; background: none; color: var(--muted); padding: 7px 14px; border-radius: var(--r-pill); font: 600 14px var(--body); cursor: pointer; transition: background-color 0.2s, color 0.2s; }
.seg button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); }

/* Measured bars: one row per case, stacked segments, a total on the right. */
.bars { margin-top: 28px; display: grid; gap: 10px; }
.bar-row { display: grid; grid-template-columns: 170px minmax(0, 1fr) 84px; gap: 14px; align-items: center; }
.bar-row .lbl { font-size: 15px; font-variant-numeric: tabular-nums; line-height: 1.3; }
.bar-row .lbl small { display: block; color: var(--muted); font-size: 13px; }
.track { height: 22px; background: var(--surface); border: 1px solid var(--line); border-radius: 5px; overflow: hidden; display: flex; }
.track i { display: block; height: 100%; transition: width var(--d-bar) var(--ease); }
.bar-row .tot { font: 600 15px var(--body); font-variant-numeric: tabular-nums; text-align: right; }
.c1 { background: var(--accent); } .c2 { background: var(--glow); } .c3 { background: var(--violet); } .c4 { background: var(--line); }
.legend { margin-top: var(--s-4); display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: var(--fs-small); color: var(--muted); }
.legend span::before { content: ""; display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; background: var(--c); }

/* Proof figures: big numbers on a 2px ink rule. */
.proof { margin-top: var(--s-6); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px 32px; }
.proof div { border-top: 2px solid var(--ink); padding-top: var(--s-3); display: grid; gap: var(--s-1); align-content: start; }
.proof b { font: 800 var(--fs-figure)/1 var(--display); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.proof span { color: var(--muted); font-size: 15px; }

/* Definition rows: features as a spec sheet, not cards. */
.feats { margin-top: 36px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 56px; }
.feat { padding-block: 22px; border-top: 1px solid var(--line); display: grid; gap: 6px; align-content: start; }
.feat h3 { font-size: var(--fs-h3); font-weight: 700; letter-spacing: -0.01em; }
.feat p { color: var(--muted); }
.feat-group { grid-column: 1 / -1; padding: 34px 0 10px; font: 600 13px var(--body); letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.feat-group:first-child { padding-top: 0; }
.new { display: inline-block; margin-left: 8px; padding: 1px 7px; border-radius: var(--r-pill); background: var(--accent-soft); color: var(--accent); font: 600 12px/1.6 var(--body); letter-spacing: 0; vertical-align: 3px; }

/* Tables */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-m); background: var(--surface); margin-top: 28px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { font-weight: 600; color: var(--muted); font-size: 13px; letter-spacing: 0.02em; background: var(--paper); white-space: nowrap; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
th[scope="row"] { font-weight: 500; }
td small, th small { display: block; font-weight: 400; color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.cmp table { min-width: 720px; }
.cmp thead th.us, .cmp td.us { background: var(--accent-soft); }
.cmp thead th.us { color: var(--accent); font-weight: 700; }
.cmp td.us { font-weight: 600; min-width: 200px; }
.cmp tr.grp th { padding-top: 18px; font: 600 12.5px var(--body); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); background: none; }

/* Status marks: filled = yes, ring = partly / pending, grey = no. */
.st { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; white-space: nowrap; }
.st::before { content: ""; width: 9px; height: 9px; border-radius: 50%; flex: none; }
.st-ok::before { background: var(--ok); }
.st-built::before { background: transparent; border: 2px solid var(--built); width: 7px; height: 7px; }
.st-no { color: var(--muted); }
.st-no::before { background: var(--no); opacity: 0.5; }
.key { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: var(--fs-small); color: var(--muted); }

/* Plans */
.plans { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s-4); margin-top: var(--s-6); }
.plans.plans-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.plan { border: 1px solid var(--line); border-radius: var(--r-l); padding: 22px; background: var(--surface); display: flex; flex-direction: column; gap: 10px; }
.plan.pick { background: var(--accent-soft); border-color: transparent; }
.plan h3 { font-size: 20px; font-weight: 700; }
.plan .who { color: var(--muted); font-size: 15px; min-height: 3em; }
.plan .price { font: 700 34px/1.1 var(--display); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.plan .price small { display: block; margin-top: 4px; font: 500 14px var(--body); color: var(--muted); letter-spacing: 0; }
.plan ul { list-style: none; padding: 0; margin: 4px 0 0; display: grid; gap: 6px; font-size: 15px; }
.plan li { padding-left: 18px; position: relative; }
.plan li::before { content: ""; position: absolute; left: 2px; top: 0.6em; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.plan .addon { margin-top: auto; padding-top: var(--s-3); border-top: 1px solid var(--line); font-size: var(--fs-small); color: var(--muted); }
.plan .addon b { color: var(--ink); font-variant-numeric: tabular-nums; }

/* Three-up "get started" columns, and the FAQ as a definition list */
.get { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: var(--s-6); }
.get > div { display: flex; flex-direction: column; align-items: flex-start; }
.get > div .btn { margin-top: auto; }
.get h3 { font-size: 20px; margin-bottom: 10px; }
.get h3 b { color: var(--accent); font-variant-numeric: tabular-nums; margin-right: 6px; }
.get p { color: var(--muted); margin-bottom: var(--s-3); font-size: 16px; }
.faq { margin-top: var(--s-6); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 56px; }
.faq div { border-top: 1px solid var(--line); padding-block: 20px; }
.faq dt { font: 700 19px/1.25 var(--display); letter-spacing: -0.01em; }
.faq dd { margin-top: 6px; color: var(--muted); }

/* Code block with copy button (assets/site.js-style) */
pre { background: var(--code-bg); color: var(--code-ink); border-radius: var(--r-m); padding: 16px 18px; margin: 0; overflow-x: auto; line-height: 1.55; font-size: 14px; }
.copy-wrap { position: relative; }
.copy-btn { position: absolute; top: 8px; right: 8px; background: #263252; color: #dfe6f7; border: 0; border-radius: 6px; padding: 4px 9px; font: 500 12px var(--body); cursor: pointer; opacity: 0.85; }
.copy-btn:hover { opacity: 1; }

/* Closing: a second, smaller instrument, here a booking form on the table. */
.closing { margin-top: var(--s-8); }
.closing .lt { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--s-6); padding: var(--s-6); align-items: center; }
.closing h2 { font-size: var(--fs-h2); font-weight: 800; letter-spacing: -0.025em; color: var(--table-ink); }
.closing p { margin-top: var(--s-3); color: var(--table-muted); max-width: 30em; }
.form { display: grid; gap: var(--s-3); }
.form label { display: grid; gap: 6px; font-size: 13px; color: var(--table-muted); }
.form input, .form select { font: 15px var(--body); color: var(--table-ink); background: color-mix(in srgb, var(--table) 70%, black); border: 1px solid #26304a; border-radius: 8px; padding: 11px 12px; min-width: 0; }
.form input:focus-visible, .form select:focus-visible { outline: 2px solid var(--glow); outline-offset: 1px; }
.form .row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--s-3); }
.form .btn-primary { justify-content: center; }
.form .fine { font-size: 12.5px; color: var(--table-muted); }

/* Footer */
.foot { border-top: 1px solid var(--line); margin-top: var(--s-9); padding-block: var(--s-6) var(--s-7); color: var(--muted); font-size: 15px; }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; }
.foot a { color: var(--muted); }
.foot .right { margin-left: auto; display: flex; gap: 12px; align-items: center; }
.motion-btn { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); border-radius: var(--r-pill); padding: 5px 12px 5px 6px; font: 500 13px var(--body); cursor: pointer; }
.motion-btn .sw { position: relative; width: 26px; height: 15px; border-radius: 999px; background: var(--line); transition: background-color 0.2s; }
.motion-btn .sw::after { content: ""; position: absolute; top: 2px; left: 2px; width: 11px; height: 11px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.25); transition: transform 0.25s var(--plug); }
.motion-btn[aria-checked="true"] .sw { background: var(--accent); }
.motion-btn[aria-checked="true"] .sw::after { transform: translateX(11px); }

/* Signal's own mark motif: framed stripes (the template uses solar cells). */
.mark-stripes rect { shape-rendering: crispEdges; }

/* Calm: nothing moves on its own; changes still happen, instantly. */
html.calm *, html.calm *::before, html.calm *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 1000px) {
  .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .hero-grid, .closing .lt { grid-template-columns: minmax(0, 1fr); }
  .feats, .get, .faq, .plans.plans-3 { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 760px) {
  .proof { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
  .top nav .hide-sm { display: none; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .top nav { gap: 14px; }
  .hero { padding-top: 40px; }
  .plans { grid-template-columns: minmax(0, 1fr); }
  .plan .who { min-height: 0; }
  .lt-stage { height: 280px; }
  .bar-row { grid-template-columns: 104px minmax(0, 1fr) 64px; gap: 8px; }
  .bar-row .lbl { font-size: 14px; }
  .closing .lt { padding: var(--s-5) var(--s-4); }
  .form .row { grid-template-columns: minmax(0, 1fr); }
  .foot .right { margin-left: 0; }
}
@media (max-width: 400px) {
  .lt-readouts b { font-size: 17px; }
  .top nav .hide-xs { display: none; }
}