/*
 * The Bind website (ADR 0054). Built on the brand tokens in /brand/tokens.css (ADR 0045): colour, type, motion and the bead mark.
 * Layout: one 1120 px column with full-width bands; the how-it-works story pins its picture on wide screens.
 * Motion is written inside prefers-reduced-motion: no-preference, so the resting page is the finished page.
 */
:root {
  --wrap: 1120px;
  --gutter: max(20px, env(safe-area-inset-left, 0px));
  --shadow: var(--elev-2);
  --band: color-mix(in srgb, var(--surface) 70%, var(--bg));
  /* Glass and gloss (ADR 0055): translucent surfaces, a one-pixel top highlight, layered soft shadows. Kept faint on purpose. */
  --glass: color-mix(in srgb, var(--surface) 74%, transparent);
  --glass-strong: color-mix(in srgb, var(--surface) 88%, transparent);
  --glass-edge: rgba(255, 255, 255, 0.7);
  --glass-line: color-mix(in srgb, var(--border) 85%, transparent);
  --highlight: inset 0 1px 0 rgba(255, 255, 255, 0.75);
  --elev-1: 0 1px 1px rgba(26, 22, 18, 0.04), 0 4px 14px -6px rgba(26, 22, 18, 0.12);
  --elev-2: 0 1px 1px rgba(26, 22, 18, 0.05), 0 18px 40px -18px rgba(26, 22, 18, 0.28);
  --sheen: linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0) 46%);
  --radius: 18px;
  --radius-sm: 14px;
  --radius-lg: 24px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --glass-edge: rgba(255, 255, 255, 0.08);
    --highlight: inset 0 1px 0 rgba(255, 255, 255, 0.07);
    --elev-1: 0 1px 1px rgba(0, 0, 0, 0.3), 0 4px 14px -6px rgba(0, 0, 0, 0.5);
    --elev-2: 0 1px 1px rgba(0, 0, 0, 0.35), 0 18px 40px -18px rgba(0, 0, 0, 0.7);
    --sheen: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0) 46%);
  }
}
:root[data-theme="dark"] {
  --glass-edge: rgba(255, 255, 255, 0.08);
  --highlight: inset 0 1px 0 rgba(255, 255, 255, 0.07);
  --elev-1: 0 1px 1px rgba(0, 0, 0, 0.3), 0 4px 14px -6px rgba(0, 0, 0, 0.5);
  --elev-2: 0 1px 1px rgba(0, 0, 0, 0.35), 0 18px 40px -18px rgba(0, 0, 0, 0.7);
  --sheen: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0) 46%);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.6 var(--font-ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--text); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3, p { margin: 0; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: var(--gutter); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
.skip { position: absolute; left: 12px; top: -60px; background: var(--text); color: var(--bg); padding: 10px 14px; border-radius: 8px; z-index: 50; }
.skip:focus { top: 12px; }
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 500; }
.bead { fill: var(--accent); }

/* Header: a floating glass pill that tightens as the page scrolls (ADR 0055) */
.site-header { position: sticky; top: 0; z-index: 20; padding: calc(12px + env(safe-area-inset-top, 0px)) max(16px, env(safe-area-inset-right, 0px)) 0 max(16px, env(safe-area-inset-left, 0px)); pointer-events: none; }
.header-row { pointer-events: auto; position: relative; display: flex; align-items: center; justify-content: space-between; gap: 16px; max-width: var(--wrap); min-height: 64px; margin: 0 auto; padding: 0 10px 0 22px; border-radius: 999px; background: var(--glass); background-image: var(--sheen); border: 1px solid var(--glass-line); box-shadow: var(--highlight), var(--elev-1); -webkit-backdrop-filter: blur(16px) saturate(1.5); backdrop-filter: blur(16px) saturate(1.5); transition: max-width var(--dur-slow) var(--ease-standard), min-height var(--dur-slow) var(--ease-standard), padding var(--dur-slow) var(--ease-standard), box-shadow var(--dur-slow) var(--ease-standard), background-color var(--dur-slow) var(--ease-standard); }
.site-header.is-compact .header-row { max-width: 780px; min-height: 54px; padding-left: 18px; background-color: var(--glass-strong); box-shadow: var(--highlight), var(--elev-2); }
.lockup { display: inline-flex; color: var(--text); border-radius: 999px; }
.lockup svg { width: 104px; height: auto; display: block; transition: width var(--dur-slow) var(--ease-standard); overflow: visible; }
.site-header.is-compact .lockup svg { width: 92px; }
.site-nav { display: flex; align-items: center; }
.nav-list { display: flex; gap: 2px; list-style: none; margin: 0; padding: 0; align-items: center; }
.nav-list a { display: inline-block; padding: 9px 14px; border-radius: 999px; text-decoration: none; font-size: 15px; color: var(--text-muted); transition: color var(--dur-fast) var(--ease-standard), background-color var(--dur-fast) var(--ease-standard); }
.nav-list a:hover { color: var(--text); background: color-mix(in srgb, var(--border) 60%, transparent); }
.nav-list .nav-signin { color: var(--bg); background: var(--text); margin-left: 6px; box-shadow: var(--highlight); }
.nav-list .nav-signin:hover { color: var(--bg); background: color-mix(in srgb, var(--text) 86%, var(--accent)); }
.menu-toggle { display: none; font: 500 15px/1 var(--font-ui); color: var(--text); background: transparent; border: 1px solid var(--glass-line); border-radius: 999px; padding: 10px 16px; cursor: pointer; }
@media (max-width: 760px) {
  .header-row { min-height: 56px; padding-left: 18px; }
  .site-header.is-compact .header-row { min-height: 50px; }
  .menu-toggle { display: inline-block; }
  .nav-list { display: none; position: absolute; left: 0; right: 0; top: calc(100% + 8px); flex-direction: column; align-items: stretch; gap: 2px; padding: 10px; border-radius: var(--radius-lg); background: var(--glass-strong); background-image: var(--sheen); border: 1px solid var(--glass-line); box-shadow: var(--highlight), var(--elev-2); -webkit-backdrop-filter: blur(16px) saturate(1.5); backdrop-filter: blur(16px) saturate(1.5); }
  .nav-list.is-open { display: flex; }
  .nav-list a { padding: 14px 16px; font-size: 17px; border-radius: var(--radius-sm); }
  .nav-list .nav-signin { margin: 6px 0 0; text-align: center; }
  .nav-list.nav-simple { display: flex; position: static; flex-direction: row; padding: 0; border: 0; background: none; box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
  .nav-list.nav-simple a { padding: 8px 12px; font-size: 15px; }
}
@media (prefers-reduced-motion: no-preference) {
  .nav-list.is-open { animation: drop var(--dur-base) var(--ease-emphasis) both; }
}
@keyframes drop { from { opacity: 0; transform: translateY(-6px) scale(0.98); } to { opacity: 1; transform: none; } }

/* Type */
.display { font-family: var(--font-display); font-weight: 500; letter-spacing: -0.025em; line-height: 1.02; text-wrap: balance; }
.eyebrow { font: 500 12px/1 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
.section-title { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.9rem, 3.8vw, 2.75rem); line-height: 1.08; letter-spacing: -0.02em; text-wrap: balance; max-width: 22ch; }
.section-lede { color: var(--text-muted); font-size: 1.12rem; max-width: 56ch; margin-top: 16px; text-wrap: pretty; }
.section-note { color: var(--text-muted); font-size: 0.95rem; margin-top: 28px; max-width: 60ch; }
.fine { color: var(--text-muted); font-size: 0.9rem; }
h3 { font-size: 1.08rem; font-weight: 600; line-height: 1.35; letter-spacing: -0.005em; }

/* Buttons */
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 24px; border-radius: 999px; font: 500 16px/1 var(--font-ui); text-decoration: none; border: 1px solid transparent; transition: transform var(--dur-fast) var(--ease-standard), background-color var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard); }
.btn:hover { transform: translateY(-1px); }
/* The lift must not move the hit area: a pointer on the bottom edge would flicker hover on and off. This strip fills the gap. */
.btn { position: relative; }
.btn::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--text); background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0) 55%); color: var(--bg); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), var(--elev-1); }
.btn-primary:hover { color: var(--bg); background: color-mix(in srgb, var(--text) 86%, var(--accent)); }
.btn-quiet { border-color: var(--glass-line); color: var(--text); background: var(--glass); background-image: var(--sheen); box-shadow: var(--highlight), var(--elev-1); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.btn-quiet:hover { color: var(--text); border-color: var(--text-muted); }

/* Bands */
section { padding-block: clamp(72px, 10vw, 128px); }
.band { background: var(--band); border-block: 1px solid var(--border); }

/* Hero */
.hero { position: relative; padding-block: clamp(48px, 8vw, 104px) clamp(64px, 9vw, 112px); overflow: hidden; isolation: isolate; }
.hero::before { content: ""; position: absolute; z-index: -1; inset: -20% -10% auto 35%; height: 120%; background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 14%, transparent), transparent 70%); opacity: 0.7; pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero h1 { font-size: clamp(2.6rem, 5.4vw, 4.3rem); }
.hero h1 .line { display: block; }
@media (min-width: 901px) { .hero h1 .line { white-space: nowrap; } }
.lede { font-size: clamp(1.12rem, 1.6vw, 1.3rem); color: var(--text-muted); max-width: 34ch; margin: 22px 0 30px; text-wrap: pretty; }
.hero .fine { margin-top: 16px; }
.hero-figure { margin: 0; min-width: 0; }
.hero-figure figcaption { color: var(--text-muted); font-size: 0.88rem; margin-top: 12px; text-align: center; }
.hero-diagram { width: 100%; height: auto; display: block; overflow: visible; }
.hero-diagram .pill rect { fill: var(--glass-strong); stroke: var(--glass-line); stroke-width: 1.5; }
.hero-diagram .hd-reflection .ring { stroke: var(--text); }
.hero-diagram .hd-reflection { opacity: 0.35; }
.hero-diagram .pill.agent rect { stroke: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.hero-diagram .pill text { font: 500 15px var(--font-ui); fill: var(--text); }
.hero-diagram .hd-links path { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; opacity: 0.75; }
.hero-diagram .ring { fill: none; stroke: var(--text); stroke-width: 6; stroke-linecap: round; }
.hero-diagram .hd-caption { font: 500 11px var(--font-mono); letter-spacing: 0.14em; fill: var(--text-muted); }
@media (prefers-reduced-motion: no-preference) {
  .js .hero h1 .line, .js .hero .lede, .js .hero .cta-row, .js .hero .fine { opacity: 0; transform: translateY(14px); }
  .js.is-ready .hero h1 .line, .js.is-ready .hero .lede, .js.is-ready .hero .cta-row, .js.is-ready .hero .fine { opacity: 1; transform: none; transition: opacity var(--dur-reveal) var(--ease-emphasis), transform var(--dur-reveal) var(--ease-emphasis); }
  .js.is-ready .hero h1 .line:nth-child(2) { transition-delay: 60ms; }
  .js.is-ready .hero .lede { transition-delay: 120ms; }
  .js.is-ready .hero .cta-row { transition-delay: 180ms; }
  .js.is-ready .hero .fine { transition-delay: 240ms; }
  .js .hero-diagram .hd-links path { stroke-dasharray: 1; stroke-dashoffset: 1; }
  .js.is-ready .hero-diagram .hd-links path { stroke-dashoffset: 0; transition: stroke-dashoffset 640ms var(--ease-standard) 260ms; }
  .js.is-ready .hero-diagram .hd-links path.out { transition-delay: 720ms; }
  .js .hero-diagram .pill { opacity: 0; }
  .js.is-ready .hero-diagram .pill { opacity: 1; transition: opacity var(--dur-slow) var(--ease-standard) 120ms; }
  .js.is-ready .hero-diagram .pill.agent { transition-delay: 980ms; }
  .js .hero-diagram .hd-ring .bead { transform: translate(14px, -24px); opacity: 0; transform-box: view-box; }
  .js.is-ready .hero-diagram .hd-ring .bead { transform: none; opacity: 1; transition: transform var(--dur-reveal) var(--ease-emphasis) 560ms, opacity var(--dur-base) linear 560ms; }
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-figure { max-width: 560px; }
}

/* Problem */
.problem-list { list-style: none; padding: 0; margin: 44px 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px 56px; }
.problem-list li { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 16px; align-items: start; }
.problem-list h3 { font-family: var(--font-display); font-weight: 500; font-size: 1.45rem; letter-spacing: -0.01em; margin-bottom: 6px; }
.problem-list p { color: var(--text-muted); text-wrap: pretty; }
.link-icon { display: inline-flex; width: 40px; height: 24px; flex: none; margin-top: 6px; }
.link-icon svg { width: 40px; height: 24px; overflow: visible; }
.link-icon path { fill: none; stroke: var(--text-muted); stroke-width: 2.4; stroke-linecap: round; }
.link-icon .half.left { transform: translateX(-3px); }
.link-icon .half.right { transform: translateX(3px); }
.link-icon .bridge { stroke: var(--accent); opacity: 0; }
@media (max-width: 760px) { .problem-list { grid-template-columns: 1fr; gap: 28px; } }

/* How it works: a story with a pinned picture */
.story { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 88px); margin-top: 48px; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.step { min-height: 62vh; display: flex; flex-direction: column; justify-content: center; gap: 12px; padding-block: 24px; opacity: 0.45; transition: opacity var(--dur-slow) var(--ease-standard); }
.step.is-active, .no-js .step { opacity: 1; }
.step h3 { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.5rem, 2.6vw, 2rem); letter-spacing: -0.015em; display: flex; align-items: baseline; gap: 14px; }
.step-num { font: 500 13px/1 var(--font-mono); color: var(--accent); border: 1px solid currentColor; border-radius: 999px; width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center; flex: none; transform: translateY(-4px); }
.step p { color: var(--text-muted); max-width: 44ch; }
details { border-top: 1px solid var(--border); padding-top: 12px; max-width: 46ch; }
summary { cursor: pointer; font-weight: 500; color: var(--text); list-style: none; display: flex; align-items: center; gap: 10px; }
summary::-webkit-details-marker { display: none; }
summary::before { content: ""; width: 8px; height: 8px; border-right: 1.6px solid var(--text-muted); border-bottom: 1.6px solid var(--text-muted); transform: rotate(-45deg); transition: transform var(--dur-base) var(--ease-standard); flex: none; }
details[open] > summary::before { transform: rotate(45deg); }
details p { margin-top: 10px; color: var(--text-muted); }
.stage-col { position: relative; }
.stage { position: sticky; top: calc(50vh - 190px); min-height: 380px; border: 1px solid var(--glass-line); background: var(--glass-strong); background-image: var(--sheen); border-radius: var(--radius-lg); box-shadow: var(--highlight), var(--elev-2); padding: 28px; overflow: hidden; }
.layer { position: absolute; inset: 28px; display: flex; flex-direction: column; gap: 14px; opacity: 0; visibility: hidden; transform: translateY(8px); transition: opacity var(--dur-slow) var(--ease-standard), transform var(--dur-slow) var(--ease-standard), visibility 0s linear var(--dur-slow); }
.stage[data-step="1"] .layer-1, .stage[data-step="2"] .layer-2, .stage[data-step="3"] .layer-3 { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.layer-title { font: 500 12px/1 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); }
.layer-note { color: var(--text-muted); font-size: 0.82rem; margin-top: auto; }
.tool-rows { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.tool-rows li { display: flex; align-items: center; gap: 14px; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); box-shadow: var(--highlight); font-weight: 500; }
.tool-rows .link-icon { margin-top: 0; }
.stage[data-step="1"] .tool-rows .half.left, .stage[data-step="1"] .tool-rows .half.right { transform: none; stroke: var(--text); }
.stage[data-step="1"] .tool-rows .bridge { opacity: 1; }
.tool-rows .link-icon path { transition: transform var(--dur-slow) var(--ease-emphasis), opacity var(--dur-slow) var(--ease-standard), stroke var(--dur-base) linear; }
.tool-rows li:nth-child(2) .link-icon path { transition-delay: 60ms; }
.tool-rows li:nth-child(3) .link-icon path { transition-delay: 120ms; }
.tool-rows li:nth-child(4) .link-icon path { transition-delay: 180ms; }
.tag { margin-left: auto; font: 500 12px/1 var(--font-ui); padding: 6px 9px; border-radius: 999px; background: var(--status-held-tint); color: var(--status-held-text); }
.tag-sim { background: var(--status-pending-tint); color: var(--status-pending-text); }
.tag-live { background: var(--status-approved-tint); color: var(--status-approved-text); }
.limit { padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); box-shadow: var(--highlight); display: grid; gap: 10px; }
.limit-text { font-size: 1rem; }
.meter { height: 8px; border-radius: 999px; background: var(--border); position: relative; overflow: hidden; }
.meter-fill { position: absolute; inset: 0 60% 0 0; background: var(--accent); border-radius: inherit; transform-origin: left; transform: scaleX(1); }
.presets { display: flex; gap: 8px; flex-wrap: wrap; }
.preset { font-size: 0.88rem; padding: 7px 12px; border: 1px solid var(--border); border-radius: 999px; color: var(--text-muted); }
.preset.is-on { background: var(--text); color: var(--bg); border-color: var(--text); }
.item { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 12px; align-items: center; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); box-shadow: var(--highlight); }
.item-wait { border-color: color-mix(in srgb, var(--status-pending) 55%, var(--border)); }
.item-head { font-weight: 500; }
.item-sub { color: var(--text-muted); font-size: 0.88rem; }
.bind-mark.mini { width: 30px; height: 30px; overflow: visible; }
.bind-mark .ring { fill: none; stroke-width: 6; stroke-linecap: round; }
.stage-clone { display: none; }
@media (max-width: 900px) {
  .story { grid-template-columns: 1fr; }
  .stage-col { display: none; }
  .step { min-height: 0; opacity: 1; padding-block: 28px; border-top: 1px solid var(--border); }
  .step:first-child { border-top: 0; }
  .stage-clone { display: block; position: relative; top: auto; margin-top: 12px; min-height: 0; }
  .stage-clone .layer { position: static; display: none; opacity: 1; visibility: visible; transform: none; }
  .stage-clone[data-step="1"] .layer-1, .stage-clone[data-step="2"] .layer-2, .stage-clone[data-step="3"] .layer-3 { display: flex; }
}

/* Who it is for */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.tab { font: 500 15px/1 var(--font-ui); color: var(--text); background: var(--glass); background-image: var(--sheen); border: 1px solid var(--glass-line); box-shadow: var(--highlight); border-radius: 999px; padding: 12px 18px; cursor: pointer; transition: background-color var(--dur-base) var(--ease-standard), color var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard); }
.tab:hover { border-color: var(--text-muted); }
.tab[aria-selected="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
.day { margin-top: 18px; background: var(--glass-strong); background-image: var(--sheen); border: 1px solid var(--glass-line); border-radius: var(--radius-lg); padding: clamp(20px, 3vw, 32px); display: grid; gap: 16px; box-shadow: var(--highlight), var(--elev-2); }
.day-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.day-title { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.4rem, 2.4vw, 1.8rem); letter-spacing: -0.01em; }
.example-tag { font: 500 12px/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); border: 1px dashed var(--text-muted); border-radius: 6px; padding: 7px 9px; }
.day-line { color: var(--text-muted); max-width: 60ch; }
.day-rows { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.row { display: grid; grid-template-columns: 30px minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); box-shadow: var(--highlight); }
.row-text { display: grid; gap: 2px; min-width: 0; }
.row-text b { font-weight: 500; }
.row-text small { color: var(--text-muted); font-size: 0.88rem; }
.row-who { font: 500 12px/1 var(--font-mono); color: var(--text-muted); }
@media (prefers-reduced-motion: no-preference) {
  .day.is-changing .row { animation: rise var(--dur-base) var(--ease-standard) both; }
  .day.is-changing .row:nth-child(2) { animation-delay: var(--stagger); }
  .day.is-changing .row:nth-child(3) { animation-delay: calc(var(--stagger) * 2); }
}
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (max-width: 600px) { .row { grid-template-columns: 30px minmax(0, 1fr); } .row-who { grid-column: 2; } }

/* Trust */
.promises { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: 44px; border-top: 1px solid var(--border); }
.promise { padding: 28px 28px 0 0; display: grid; gap: 10px; align-content: start; }
.promise + .promise { padding-left: 28px; border-left: 1px solid var(--border); }
.promise h3 { font-family: var(--font-display); font-weight: 500; font-size: 1.4rem; letter-spacing: -0.01em; }
.promise p { color: var(--text-muted); text-wrap: pretty; }
@media (max-width: 860px) { .promises { grid-template-columns: 1fr; } .promise, .promise + .promise { padding: 24px 0 0; border-left: 0; } .promise + .promise { border-top: 1px solid var(--border); margin-top: 24px; } }

/* Integrations */
.int-list { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.int-list li { padding: 22px; border: 1px solid var(--glass-line); border-radius: var(--radius); background: var(--glass-strong); background-image: var(--sheen); box-shadow: var(--highlight), var(--elev-1); transition: transform var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard); display: grid; gap: 6px; align-content: start; }
.int-list li:hover { transform: translateY(-2px); box-shadow: var(--highlight), var(--elev-2); }
.int-list p { color: var(--text-muted); font-size: 0.95rem; }

/* Builders */
.builders-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 72px); align-items: center; }
.builders-links { margin-top: 22px; font-weight: 500; }
.code-card { margin: 0; border-radius: var(--radius-lg); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), var(--elev-2); background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0) 40%); background: #1A1612; color: #F2EBDD; border: 1px solid #2E2822; overflow: hidden; min-width: 0; }
.code-card figcaption { font: 500 12px/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: #A89E8E; padding: 16px 20px; border-bottom: 1px solid #2E2822; }
.code-card pre { margin: 0; padding: 20px; overflow-x: auto; font: 400 14px/1.7 var(--font-mono); }
@media (max-width: 900px) { .builders-grid { grid-template-columns: 1fr; } }

/* Pricing */
.pricing-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; align-items: end; }
.pricing-row .section-lede { margin-top: 0; }
@media (max-width: 760px) { .pricing-row { grid-template-columns: 1fr; } }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 80px); }
.faq-list { display: grid; }
.faq-list details { max-width: none; padding: 18px 0; border-top: 1px solid var(--border); }
.faq-list details:last-child { border-bottom: 1px solid var(--border); }
.faq-list summary { font-size: 1.05rem; justify-content: space-between; }
.faq-list summary::before { order: 2; }
.faq-list details p { max-width: 62ch; }
@media (max-width: 860px) { .faq-grid { grid-template-columns: 1fr; } }

/* Final call */
.final { text-align: center; padding-block: clamp(88px, 12vw, 152px); }
.final-inner { display: grid; justify-items: center; gap: 28px; }
.final-mark { width: 72px; height: 72px; }
.final-mark .ring { stroke: var(--text); }
.final-title { font-size: clamp(2.6rem, 6vw, 4.4rem); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding-block: 48px calc(48px + env(safe-area-inset-bottom, 0px)); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
.footer-brand { font-family: var(--font-display); font-size: 1.3rem; font-weight: 500; }
.footer-head { font: 500 12px/1 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 12px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.site-footer a { text-decoration: none; color: var(--text-muted); }
.site-footer a:hover { color: var(--text); }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* Simple pages: start, demo, not found */
.simple { min-height: calc(100vh - 69px); display: grid; align-items: center; padding-block: 64px; }
.simple-inner { max-width: 640px; display: grid; gap: 20px; }
.simple-inner .display { font-size: clamp(2.2rem, 5vw, 3.4rem); }
.simple-inner .section-lede { margin-top: 0; }
.simple-list { margin: 0; padding-left: 1.2em; color: var(--text-muted); display: grid; gap: 8px; }
.status-chip { box-shadow: var(--highlight); display: inline-flex; align-items: center; gap: 8px; justify-self: start; font: 500 13px/1 var(--font-ui); padding: 8px 12px; border-radius: 999px; background: var(--status-held-tint); color: var(--status-held-text); }
.status-chip .bind-mark { width: 18px; height: 18px; }

/* Scroll reveal (ADR 0055): sections ease up into place once, the first time they come into view. */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(18px); }
  .js .reveal.is-in { opacity: 1; transform: none; transition: opacity 640ms var(--ease-emphasis), transform 640ms var(--ease-emphasis); transition-delay: var(--reveal-delay, 0ms); }
  .js .problem-list .link-icon .half.left { transform: translateX(-9px); }
  .js .problem-list .link-icon .half.right { transform: translateX(9px); }
  .js .problem-list li.is-in .link-icon .half { transition: transform 720ms var(--ease-emphasis) 200ms; }
  .js .problem-list li.is-in .link-icon .half.left { transform: translateX(-3px); }
  .js .problem-list li.is-in .link-icon .half.right { transform: translateX(3px); }
  .final.is-in .final-mark .clasp { animation: seat 900ms var(--ease-emphasis) 160ms both; }
}
@keyframes seat { 0% { transform: translate(10px, -18px); opacity: 0; } 60% { opacity: 1; } 82% { transform: translate(-0.6px, 1px); } 100% { transform: none; } }
.final-mark .clasp { transform-box: view-box; }

/* First-visit intro (ADR 0055): the ring draws, the bead seats, the page appears. Once per session; never with reduced motion. */
.intro { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; background: var(--bg); transition: opacity 360ms var(--ease-exit), visibility 0s linear 360ms; }
.intro.is-done { opacity: 0; visibility: hidden; }
.intro svg { width: 84px; height: 84px; overflow: visible; }
.intro .ring { fill: none; stroke: var(--text); stroke-width: 6; stroke-linecap: round; stroke-dasharray: 100; stroke-dashoffset: 100; animation: draw 640ms var(--ease-standard) 80ms forwards; }
.intro .clasp { fill: var(--accent); transform-box: view-box; opacity: 0; animation: seat 620ms var(--ease-emphasis) 620ms forwards; }
.intro .intro-word { margin-top: 18px; font: 500 12px/1 var(--font-mono); letter-spacing: 0.24em; color: var(--text-muted); opacity: 0; animation: fade 400ms var(--ease-standard) 760ms forwards; text-align: center; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: 1; } }
/* While the intro plays the page waits underneath. If the script never runs, the page shows itself after 2.4 s. */
.is-intro body > :not(.intro) { visibility: hidden; animation: intro-safety 0s linear 2.4s forwards; }
@keyframes intro-safety { to { visibility: visible; } }
@media (prefers-reduced-motion: reduce) { .intro { display: none; } .is-intro body > :not(.intro) { visibility: visible; animation: none; } }