/* ==========================================================================
   Osmos website — design system
   Layered on osmos.css (loaded first). Never redefine a brand token here;
   brand values live in ../tokens.json and ../osmos.css.

   Core rule: the interface is calm and neutral; color appears when knowledge
   moves. Flow colors are reserved for the handoff. Nothing else.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Theme defaults
   osmos.css defines vars only under [data-theme]. <html data-theme="dark"> is
   set inline before paint, so this is a safety net for a JS-free load.
   -------------------------------------------------------------------------- */
/* Dark surface defaults.
   Scoped with :not([data-theme="light"]) deliberately. osmos.css loads first, so
   a plain :root here would have equal specificity and win the cascade over its
   [data-theme="light"] block — silently breaking the light theme. */
:root:not([data-theme="light"]) {
  --osmos-bg: #0B111B;
  --osmos-surface: #111827;
  --osmos-surface-raised: #162033;
  --osmos-text: #F7FAFF;
  --osmos-text-muted: #A9B3C5;
  --osmos-border: rgba(169, 179, 197, .16);

  /* Flow strokes. Dark theme uses brand values directly. */
  --flow-1: var(--osmos-violet-500);
  --flow-2: var(--osmos-violet-400);
  --flow-3: var(--osmos-indigo-400);
  --flow-4: var(--osmos-blue-400);
  --flow-5: var(--osmos-aqua-400);

  --axis: var(--osmos-white);
  --accent: var(--osmos-blue-400);
  --accent-contrast: #0B111B;
}

:root {
  /* Spacing — 8px rhythm (tokens.json "space") */
  --s-1: 4px;   --s-2: 8px;   --s-3: 12px;  --s-4: 16px;
  --s-5: 24px;  --s-6: 32px;  --s-7: 48px;  --s-8: 64px;
  --s-9: 96px;  --s-10: 128px;

  --container: 1264px;
  --measure: 68ch;

  /* Motion (tokens.json "motion") */
  --t-micro: 180ms;
  --t-standard: 280ms;
  --t-handoff: 900ms;
  --ease: var(--osmos-ease);

  --nav-h: 64px;
}

/* Light theme: flow colors are decorative only. Aqua 400 measures 1.94:1 on
   #F7FAFF — below even the 3:1 graphical threshold — so strokes darken here
   while keeping the violet-to-aqua hue progression. See BUILD_PLAN.md section 5. */
[data-theme="light"] {
  --flow-1: #8E22CC;
  --flow-2: #6E3ACC;
  --flow-3: #4F4FD1;
  --flow-4: #2C6ACC;
  --flow-5: #1B87A8;

  --axis: #0B111B;
  --accent: #1F63D6;
  --accent-contrast: #FFFFFF;
}

/* --------------------------------------------------------------------------
   2. Reset and base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + var(--s-5));
}

body {
  margin: 0;
  background: var(--osmos-bg);
  color: var(--osmos-text);
  font-family: var(--osmos-font-sans);
  font-size: 1rem;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  text-wrap: balance;
}

p { margin: 0; }
img, svg { max-width: 100%; }
img { height: auto; }

a { color: inherit; }

a:not([class]) {
  color: var(--accent);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

ul, ol { margin: 0; padding: 0; }
li { list-style: none; }

button { font: inherit; color: inherit; }

::selection { background: var(--osmos-indigo-400); color: #fff; }

/* Focus — 3:1 against adjacent colors, never removed (WCAG 2.4.11/2.4.13) */
:focus-visible {
  outline: 2px solid var(--osmos-aqua-400);
  outline-offset: 3px;
  border-radius: 4px;
}
[data-theme="light"] :focus-visible { outline-color: var(--accent); }

.skip-link {
  position: absolute;
  left: var(--s-4);
  top: -100px;
  z-index: 100;
  padding: var(--s-3) var(--s-5);
  background: var(--osmos-surface-raised);
  color: var(--osmos-text);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-sm);
  transition: top var(--t-micro) var(--ease);
}
.skip-link:focus { top: var(--s-4); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

/* --------------------------------------------------------------------------
   3. Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--s-4);
}
@media (min-width: 30rem) { .container { padding-inline: var(--s-5); } }
@media (min-width: 48rem) { .container { padding-inline: var(--s-7); } }

/* Grid and flex children default to min-width:auto, which refuses to shrink
   below their content — a wide <pre> then forces the whole page sideways.
   This is what keeps the layout inside 320px. */
.grid > *,
.compare > *,
.moment__stage > *,
.footer__grid > *,
.step__body,
.tl__body { min-width: 0; }

.section { padding-block: clamp(64px, 9vw, 128px); }
.section--tight { padding-block: clamp(48px, 6vw, 80px); }
.section + .section { border-top: 1px solid var(--osmos-border); }

.section__head { max-width: var(--measure); margin-bottom: var(--s-7); }
.section__head--center { margin-inline: auto; text-align: center; }

.eyebrow {
  display: block;
  font-size: .8125rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--osmos-text-muted);
  margin-bottom: var(--s-4);
}

/* --------------------------------------------------------------------------
   4. Type scale — fluid, per BRAND_GUIDELINES.md
   -------------------------------------------------------------------------- */
.t-hero {
  font-size: clamp(2.75rem, 1.6rem + 5.1vw, 5rem);   /* 44 -> 80px */
  line-height: 1.02;
  letter-spacing: -0.035em;
}
.t-h1 { font-size: clamp(2.25rem, 1.5rem + 3.3vw, 4rem); letter-spacing: -0.03em; }
.t-h2 { font-size: clamp(2rem, 1.5rem + 2.2vw, 2.75rem); letter-spacing: -0.025em; }
.t-h3 { font-size: clamp(1.375rem, 1.2rem + .8vw, 1.75rem); letter-spacing: -0.015em; }

.t-lead {
  font-size: clamp(1.125rem, 1.05rem + .35vw, 1.25rem);
  line-height: 1.55;
  color: var(--osmos-text-muted);
  max-width: var(--measure);
}
.t-body { font-size: 1rem; line-height: 1.65; color: var(--osmos-text-muted); }
.t-small { font-size: .875rem; line-height: 1.55; color: var(--osmos-text-muted); }
.t-mono {
  font-family: var(--osmos-font-mono);
  font-size: .875rem;
  letter-spacing: -0.01em;
}

.measure { max-width: var(--measure); }

/* The one place a gradient touches type: the emphasised phrase in the hero.
   The brand gradient's aqua stop measures 1.94:1 on the light background — below
   even the 3:1 large-text threshold — so light theme uses the darkened flow
   ramp, whose weakest stop (#1B87A8) is 4.0:1. Same hue progression, legible. */
.flow-text {
  background: var(--flow-text-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
:root:not([data-theme="light"]) { --flow-text-gradient: var(--osmos-flow); }
[data-theme="light"] {
  --flow-text-gradient: linear-gradient(90deg,
    var(--flow-1) 0%, var(--flow-2) 25%, var(--flow-3) 50%, var(--flow-4) 75%, var(--flow-5) 100%);
}

/* --------------------------------------------------------------------------
   5. Navigation — the ONLY glass surface on the site
   -------------------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--osmos-bg) 82%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-standard) var(--ease),
              background var(--t-standard) var(--ease);
}
@supports (backdrop-filter: blur(1px)) {
  .nav { backdrop-filter: blur(20px) saturate(1.6); }
}
/* Opaque fallback when the user asks for less transparency */
@media (prefers-reduced-transparency: reduce) {
  .nav { background: var(--osmos-bg); backdrop-filter: none; }
}
.nav[data-scrolled="true"] { border-bottom-color: var(--osmos-border); }

.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--s-5);
  width: 100%;
}
.nav__brand { display: flex; align-items: center; gap: var(--s-3); text-decoration: none; min-width: 0; }
.nav__mark { width: 28px; height: 28px; border-radius: 7px; flex: none; }
/* Below ~420px the wordmark, toggle and CTA cannot all fit. The mark keeps the
   brand present and .nav__brand still carries an accessible name. */
.nav__word { display: none; font-size: 1.0625rem; font-weight: 500; letter-spacing: .12em; }
@media (min-width: 26rem) { .nav__word { display: block; } }

.nav__links { display: none; gap: var(--s-5); margin-left: var(--s-4); }
@media (min-width: 64rem) { .nav__links { display: flex; } }
.nav__link {
  font-size: .9375rem; font-weight: 500;
  color: var(--osmos-text-muted);
  text-decoration: none;
  padding: var(--s-2) 0;
  transition: color var(--t-micro) var(--ease);
}
.nav__link:hover, .nav__link[aria-current="page"] { color: var(--osmos-text); }

.nav__actions { display: flex; align-items: center; gap: var(--s-3); margin-left: auto; }

/* --------------------------------------------------------------------------
   6. Buttons — 44px min height (WCAG 2.5.5)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  min-height: 44px;
  padding: 0 var(--s-5);
  border-radius: var(--osmos-radius-md);
  border: 1px solid transparent;
  font-size: .9375rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--t-micro) var(--ease),
              border-color var(--t-micro) var(--ease),
              color var(--t-micro) var(--ease),
              transform var(--t-micro) var(--ease);
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--osmos-white);
  color: #0B111B;
  font-weight: 600;
}
.btn--primary:hover { background: #fff; }
[data-theme="light"] .btn--primary { background: var(--osmos-ink-950); color: var(--osmos-white); }

.btn--secondary {
  background: transparent;
  border-color: var(--osmos-border);
  color: var(--osmos-text);
}
.btn--secondary:hover {
  border-color: color-mix(in srgb, var(--osmos-text) 40%, transparent);
  background: color-mix(in srgb, var(--osmos-text) 5%, transparent);
}

.btn--ghost { background: none; color: var(--osmos-text-muted); padding-inline: var(--s-3); }
.btn--ghost:hover { color: var(--osmos-text); }

.btn--sm { min-height: 36px; font-size: .875rem; padding-inline: var(--s-4); }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--s-3); align-items: center; }

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.hero { padding-top: clamp(56px, 8vw, 96px); padding-bottom: clamp(48px, 6vw, 72px); }
.hero__inner { max-width: 900px; margin-inline: auto; text-align: center; }
.hero__title { margin-bottom: var(--s-5); }
.hero__lead { margin-inline: auto; margin-bottom: var(--s-6); font-size: clamp(1.125rem, 1rem + .5vw, 1.3125rem); }
.hero__ctas { justify-content: center; margin-bottom: var(--s-4); }
.hero__tertiary { display: flex; justify-content: center; gap: var(--s-5); font-size: .875rem; }
.hero__tertiary a {
  display: inline-flex; align-items: center; min-height: 24px;
  color: var(--osmos-text-muted); text-decoration: none;
}
.hero__tertiary a:hover { color: var(--osmos-text); text-decoration: underline; text-underline-offset: 3px; }

/* --------------------------------------------------------------------------
   8. The Osmos Moment
   The logo's white axis, rendered at page scale. Color appears only while
   knowledge is in motion.
   -------------------------------------------------------------------------- */
.moment {
  --pulse-color: var(--flow-1);
  position: relative;
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-lg);
  background: var(--osmos-surface);
  padding: var(--s-5);
  overflow: hidden;
}
@media (min-width: 48rem) { .moment { padding: var(--s-7); } }

.moment__stage {
  display: grid;
  gap: var(--s-4);
  grid-template-columns: 1fr;
  align-items: stretch;
}
@media (min-width: 60rem) {
  .moment__stage { grid-template-columns: 1fr auto 1fr; gap: var(--s-5); align-items: stretch; }
}
/* The message body absorbs the height difference so both cards stay level
   whether or not the provenance chip is showing. */
.agent__msg { flex: 1; }

/* Agent cards */
.agent {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding: var(--s-4);
  background: var(--osmos-bg);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-md);
  transition: border-color var(--t-standard) var(--ease),
              box-shadow var(--t-standard) var(--ease);
}
.agent[data-active="true"] {
  border-color: color-mix(in srgb, var(--pulse-color) 60%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--pulse-color) 35%, transparent);
}
.agent__head { display: flex; align-items: center; gap: var(--s-3); }
.agent__avatar {
  width: 28px; height: 28px; flex: none;
  border-radius: 999px;
  display: grid; place-items: center;
  font-size: .75rem; font-weight: 600;
  background: var(--osmos-surface-raised);
  color: var(--osmos-text);
  border: 1px solid var(--osmos-border);
}
.agent__who { font-size: .875rem; font-weight: 500; line-height: 1.3; }
.agent__tool { font-size: .75rem; color: var(--osmos-text-muted); }

.agent__msg {
  font-size: .9375rem;
  line-height: 1.55;
  padding: var(--s-3);
  border-radius: var(--osmos-radius-sm);
  background: var(--osmos-surface);
  border: 1px solid var(--osmos-border);
  min-height: 88px;
}
.agent__msg em { font-style: normal; color: var(--osmos-text); font-weight: 500; }

.agent__msg--empty { color: var(--osmos-text-muted); display: flex; align-items: center; }

/* Provenance chip — the payoff */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  align-self: flex-start;
  padding: 6px var(--s-3);
  border-radius: 999px;
  font-size: .75rem;
  line-height: 1.3;
  background: color-mix(in srgb, var(--flow-5) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--flow-5) 45%, transparent);
  color: var(--osmos-text);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--t-standard) var(--ease), transform var(--t-standard) var(--ease);
}
.chip[data-visible="true"] { opacity: 1; transform: none; }
.chip__dot { width: 6px; height: 6px; border-radius: 999px; background: var(--flow-5); flex: none; }

/* The axis — the shared project layer */
.axis {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 88px;
}
@media (min-width: 60rem) { .axis { min-width: 200px; } }

.axis__line {
  position: absolute;
  background: var(--axis);
  opacity: .30;
  border-radius: 999px;
}
/* Mobile: vertical. Desktop: horizontal. */
.axis__line { width: 3px; height: 100%; }
@media (min-width: 60rem) { .axis__line { width: 100%; height: 3px; } }

.axis__pulse {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 999px;
  background: var(--pulse-color);
  box-shadow: 0 0 18px 3px color-mix(in srgb, var(--pulse-color) 55%, transparent);
  opacity: 0;
  top: 0; left: 50%;
  translate: -50% 0;
  transition: opacity var(--t-micro) linear;
}
.moment[data-phase="travel"] .axis__pulse { opacity: 1; animation: pulse-v var(--t-handoff) var(--ease) forwards; }
@media (min-width: 60rem) {
  .axis__pulse { top: 50%; left: 0; translate: 0 -50%; }
  .moment[data-phase="travel"] .axis__pulse { animation-name: pulse-h; }
}
@keyframes pulse-v { from { top: 0; } to { top: 100%; } }
@keyframes pulse-h { from { left: 0; } to { left: 100%; } }

.axis__core {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: var(--s-3) var(--s-4);
  background: var(--osmos-surface);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-md);
  transition: border-color var(--t-standard) var(--ease);
}
.moment[data-phase="travel"] .axis__core,
.moment[data-phase="done"] .axis__core {
  border-color: color-mix(in srgb, var(--flow-3) 55%, transparent);
}
.axis__label { font-size: .6875rem; letter-spacing: .1em; text-transform: uppercase; color: var(--osmos-text-muted); }
.axis__rev {
  font-family: var(--osmos-font-mono);
  font-size: 1.125rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.moment__controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  align-items: center;
  margin-top: var(--s-5);
  padding-top: var(--s-5);
  border-top: 1px solid var(--osmos-border);
}
.moment__status { font-size: .8125rem; color: var(--osmos-text-muted); margin-left: auto; }

/* Toggle */
.toggle {
  display: inline-flex;
  padding: 3px;
  gap: 3px;
  background: var(--osmos-bg);
  border: 1px solid var(--osmos-border);
  border-radius: 999px;
}
.toggle__btn {
  min-height: 34px;
  padding: 0 var(--s-4);
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--osmos-text-muted);
  font-size: .8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--t-micro) var(--ease), color var(--t-micro) var(--ease);
}
.toggle__btn[aria-pressed="true"] { background: var(--osmos-surface-raised); color: var(--osmos-text); }

/* --------------------------------------------------------------------------
   8b. Scope model — two private contexts, one shared project
   The privacy argument made visible: switching the viewer dims the scope the
   other account can never read.
   -------------------------------------------------------------------------- */
.scopes {
  display: grid;
  gap: var(--s-4);
  grid-template-columns: 1fr;
  align-items: stretch;
}
@media (min-width: 62rem) { .scopes { grid-template-columns: 1fr 1.15fr 1fr; } }
.scopes > * { min-width: 0; }

.scope {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding: var(--s-4);
  background: var(--osmos-surface);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-lg);
  transition: opacity var(--t-standard) var(--ease),
              border-color var(--t-standard) var(--ease);
}
.scope--shared {
  background: var(--osmos-surface-raised);
  border-color: color-mix(in srgb, var(--flow-3) 45%, transparent);
}

/* Dimmed = this account cannot read that scope.
   The dim is applied to the content, not the whole card, so the "not visible"
   explanation stays at full contrast — it is the point of the state, and
   fading the message along with the data would bury it. */
.scope[data-hidden="true"] .scope__head,
.scope[data-hidden="true"] .scope__list { opacity: .38; }
.scope[data-hidden="true"] .scope__lock { display: block; color: var(--osmos-text); }
.scope[data-reading="true"] { border-color: color-mix(in srgb, var(--flow-5) 60%, transparent); }

.scope__head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--s-3); }
.scope__who { display: flex; align-items: center; gap: var(--s-3); min-width: 0; }
.scope__avatar {
  width: 26px; height: 26px; flex: none;
  border-radius: 999px; display: grid; place-items: center;
  font-size: .6875rem; font-weight: 600;
  background: var(--osmos-bg); border: 1px solid var(--osmos-border);
}
.scope__mark { width: 26px; height: 26px; border-radius: 7px; flex: none; }
.scope__name { font-size: .9375rem; font-weight: 600; line-height: 1.3; }
.scope__tool { font-size: .75rem; color: var(--osmos-text-muted); }

.scope__tag, .scope__rev {
  flex: none;
  padding: 3px var(--s-3);
  border-radius: 999px;
  font-size: .6875rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  border: 1px solid var(--osmos-border);
  color: var(--osmos-text-muted);
}
.scope__rev {
  font-family: var(--osmos-font-mono);
  text-transform: none;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
  color: var(--osmos-text);
  border-color: color-mix(in srgb, var(--flow-3) 50%, transparent);
}
.scope__lock {
  display: none;
  margin-top: auto;
  padding-top: var(--s-3);
  font-size: .75rem;
  color: var(--osmos-text-muted);
  border-top: 1px dashed var(--osmos-border);
}

.scope__list { display: flex; flex-direction: column; gap: var(--s-2); }

.mem {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--s-2);
  padding: var(--s-3);
  border-radius: var(--osmos-radius-sm);
  background: var(--osmos-bg);
  border: 1px solid var(--osmos-border);
  font-size: .8125rem;
  line-height: 1.5;
}
.mem--shared { border-left: 2px solid var(--flow-3); }
.mem--private { border-left: 2px solid var(--osmos-text-muted); }
.mem[data-new="true"] { animation: mem-in var(--t-standard) var(--ease) both; }
@keyframes mem-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

.mem__kind {
  flex: none;
  font-family: var(--osmos-font-mono);
  font-size: .625rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--osmos-text-muted);
  padding: 1px 6px;
  border: 1px solid var(--osmos-border);
  border-radius: 4px;
}
.mem__src { margin-left: auto; font-size: .6875rem; color: var(--osmos-text-muted); }

.scopes__controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4);
  align-items: center;
  justify-content: space-between;
  margin-top: var(--s-5);
  padding-top: var(--s-5);
  border-top: 1px solid var(--osmos-border);
}
.scopes__status { margin-top: var(--s-4); }

/* --------------------------------------------------------------------------
   9. Provider strip
   -------------------------------------------------------------------------- */
.providers { display: flex; flex-wrap: wrap; gap: var(--s-3); justify-content: center; }
.provider {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-2) var(--s-4);
  border: 1px solid var(--osmos-border);
  border-radius: 999px;
  font-size: .875rem;
  color: var(--osmos-text-muted);
}
.provider[data-state="available"] { color: var(--osmos-text); }
.provider__dot { width: 6px; height: 6px; border-radius: 999px; flex: none; background: var(--osmos-text-muted); }
.provider[data-state="available"] .provider__dot { background: var(--flow-5); }
.provider__state { font-size: .6875rem; letter-spacing: .06em; text-transform: uppercase; opacity: .75; }

/* --------------------------------------------------------------------------
   10. Cards and grids
   -------------------------------------------------------------------------- */
.grid { display: grid; gap: var(--s-4); }
.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
@media (min-width: 48rem) { .grid--2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 60rem) { .grid--3 { grid-template-columns: repeat(3, 1fr); } }

.card {
  padding: var(--s-5);
  background: var(--osmos-surface);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-lg);
}
@media (min-width: 48rem) { .card { padding: var(--s-6); } }
.card__title { margin-bottom: var(--s-3); }
.card__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; margin-bottom: var(--s-4);
  border-radius: 999px;
  border: 1px solid var(--osmos-border);
  font-family: var(--osmos-font-mono); font-size: .8125rem;
  color: var(--osmos-text-muted);
}

/* Problem: without / with */
.compare { display: grid; gap: var(--s-4); grid-template-columns: 1fr; }
@media (min-width: 48rem) { .compare { grid-template-columns: 1fr 1fr; } }
.compare__col { padding: var(--s-5); border: 1px solid var(--osmos-border); border-radius: var(--osmos-radius-lg); }
.compare__col--with { background: var(--osmos-surface); }
.compare__label { font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--osmos-text-muted); margin-bottom: var(--s-4); }
.stack-list { display: flex; flex-direction: column; gap: var(--s-2); }
.stack-item {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-3) var(--s-4);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-sm);
  font-size: .875rem;
}
.stack-item__tag { margin-left: auto; font-size: .75rem; color: var(--osmos-text-muted); }
.stack-item--linked { border-color: color-mix(in srgb, var(--flow-4) 50%, transparent); }

/* Timeline: your day */
.timeline { display: flex; flex-direction: column; gap: 0; }
.tl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-5);
  padding-bottom: var(--s-6);
}
.tl:last-child { padding-bottom: 0; }
.tl__time {
  font-family: var(--osmos-font-mono);
  font-size: .8125rem;
  color: var(--osmos-text-muted);
  padding-top: 2px;
  min-width: 72px;
  font-variant-numeric: tabular-nums;
}
.tl__body { position: relative; padding-left: var(--s-5); border-left: 1px solid var(--osmos-border); }
.tl__body::before {
  content: ""; position: absolute; left: -4px; top: 7px;
  width: 7px; height: 7px; border-radius: 999px;
  background: var(--osmos-text-muted);
}
.tl:last-child .tl__body { border-left-color: transparent; }
.tl--key .tl__body::before { background: var(--flow-4); box-shadow: 0 0 0 4px color-mix(in srgb, var(--flow-4) 20%, transparent); }
.tl__title { font-size: 1.0625rem; font-weight: 600; margin-bottom: var(--s-2); }

/* --------------------------------------------------------------------------
   11. Code blocks
   -------------------------------------------------------------------------- */
.code {
  position: relative;
  background: var(--osmos-bg);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-md);
  overflow: hidden;
}
[data-theme="light"] .code { background: #0B111B; }
.code__head {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-3) var(--s-4);
  border-bottom: 1px solid rgba(169,179,197,.16);
}
.code__name { font-family: var(--osmos-font-mono); font-size: .75rem; color: #A9B3C5; }
.code pre {
  margin: 0;
  padding: var(--s-4);
  overflow-x: auto;
  font-family: var(--osmos-font-mono);
  font-size: .8125rem;
  line-height: 1.7;
  color: #F7FAFF;
  -webkit-overflow-scrolling: touch;
}
.code .c { color: #A9B3C5; }              /* comment */
.code .k { color: #30C4F4; }              /* keyword / command */
.code .s { color: #8FE3B0; }              /* string */
.code .o { color: #A9B3C5; }              /* output */

.copy {
  margin-left: auto;
  min-height: 32px;
  padding: 0 var(--s-3);
  background: transparent;
  border: 1px solid rgba(169,179,197,.24);
  border-radius: var(--osmos-radius-sm);
  color: #A9B3C5;
  font-size: .75rem;
  cursor: pointer;
  transition: color var(--t-micro) var(--ease), border-color var(--t-micro) var(--ease);
}
.copy:hover { color: #F7FAFF; border-color: rgba(169,179,197,.5); }
.copy[data-copied="true"] { color: #30C4F4; border-color: #30C4F4; }

/* --------------------------------------------------------------------------
   12. FAQ
   -------------------------------------------------------------------------- */
.faq { max-width: 800px; }
.faq__item { border-bottom: 1px solid var(--osmos-border); }
.faq__item summary {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-4);
  padding: var(--s-5) 0;
  min-height: 44px;
  font-size: 1.0625rem;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  font-size: 1.375rem;
  font-weight: 400;
  color: var(--osmos-text-muted);
  transition: transform var(--t-standard) var(--ease);
  flex: none;
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__answer { padding-bottom: var(--s-5); max-width: var(--measure); }

/* --------------------------------------------------------------------------
   13. Final CTA and footer
   -------------------------------------------------------------------------- */
.final { position: relative; text-align: center; overflow: hidden; }
.final__flow {
  height: 2px;
  width: min(560px, 80%);
  margin: 0 auto var(--s-7);
  background: var(--osmos-flow);
  border-radius: 999px;
  opacity: .9;
}
.final__title { margin-bottom: var(--s-4); }
.final__lead { margin-inline: auto; margin-bottom: var(--s-6); }
.final__ctas { justify-content: center; }

.footer { border-top: 1px solid var(--osmos-border); padding-block: var(--s-8) var(--s-7); }
.footer__grid { display: grid; gap: var(--s-6); grid-template-columns: 1fr; }
@media (min-width: 48rem) { .footer__grid { grid-template-columns: 2fr 1fr 1fr; } }
.footer__title { font-size: .8125rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--osmos-text-muted); margin-bottom: var(--s-4); }
.footer__list { display: flex; flex-direction: column; gap: var(--s-2); }
/* min-height keeps standalone links at the 24px target minimum (WCAG 2.5.8);
   these are not "inline in a sentence", so the exception does not apply. */
.footer__list a {
  display: inline-flex; align-items: center; min-height: 26px;
  font-size: .9375rem; color: var(--osmos-text-muted); text-decoration: none;
}
.footer__list a:hover { color: var(--osmos-text); }
.footer__bottom {
  display: flex; flex-wrap: wrap; gap: var(--s-4);
  justify-content: space-between; align-items: center;
  margin-top: var(--s-8); padding-top: var(--s-5);
  border-top: 1px solid var(--osmos-border);
  font-size: .8125rem; color: var(--osmos-text-muted);
}

/* Theme toggle */
.theme-toggle {
  display: inline-grid; place-items: center;
  width: 40px; height: 40px;
  border-radius: var(--osmos-radius-sm);
  border: 1px solid var(--osmos-border);
  background: transparent;
  color: var(--osmos-text-muted);
  cursor: pointer;
  transition: color var(--t-micro) var(--ease), border-color var(--t-micro) var(--ease);
}
.theme-toggle:hover { color: var(--osmos-text); }
.theme-toggle svg { width: 17px; height: 17px; }
[data-theme="dark"] .theme-toggle .i-sun { display: block; }
[data-theme="dark"] .theme-toggle .i-moon { display: none; }
[data-theme="light"] .theme-toggle .i-sun { display: none; }
[data-theme="light"] .theme-toggle .i-moon { display: block; }

/* --------------------------------------------------------------------------
   14. Page-level helpers
   -------------------------------------------------------------------------- */
.notice {
  display: flex; gap: var(--s-3);
  padding: var(--s-4);
  border: 1px solid color-mix(in srgb, var(--flow-1) 40%, transparent);
  background: color-mix(in srgb, var(--flow-1) 8%, transparent);
  border-radius: var(--osmos-radius-md);
  font-size: .9375rem;
  line-height: 1.55;
}
.notice__icon { flex: none; color: var(--flow-2); font-weight: 700; }
[data-theme="light"] .notice__icon { color: var(--flow-1); }

.track { position: relative; }
.track__badge {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: 4px var(--s-3);
  border-radius: 999px;
  font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase;
  border: 1px solid var(--osmos-border);
  color: var(--osmos-text-muted);
  margin-bottom: var(--s-4);
}
.track--primary .track__badge {
  border-color: color-mix(in srgb, var(--flow-4) 55%, transparent);
  color: var(--osmos-text);
}

.steps { display: flex; flex-direction: column; gap: var(--s-6); }
.step { display: grid; grid-template-columns: auto 1fr; gap: var(--s-4); align-items: start; }
.step__n {
  width: 30px; height: 30px; flex: none;
  display: grid; place-items: center;
  border-radius: 999px;
  border: 1px solid var(--osmos-border);
  font-family: var(--osmos-font-mono); font-size: .8125rem;
  color: var(--osmos-text-muted);
}
.step__title { font-size: 1.0625rem; font-weight: 600; margin-bottom: var(--s-2); }
.step__body > * + * { margin-top: var(--s-4); }

.deflist { display: flex; flex-direction: column; gap: var(--s-5); }
.deflist__row { display: grid; gap: var(--s-2); grid-template-columns: 1fr; }
@media (min-width: 48rem) { .deflist__row { grid-template-columns: 220px 1fr; gap: var(--s-5); } }
.deflist__term { font-weight: 600; font-size: .9375rem; }

/* Video placeholder — reserves correct position and aspect ratio */
.video-slot {
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--s-5);
  background: var(--osmos-surface);
  border: 1px dashed var(--osmos-border);
  border-radius: var(--osmos-radius-lg);
  color: var(--osmos-text-muted);
}

/* --------------------------------------------------------------------------
   15. Motion and contrast preferences
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .axis__pulse { display: none; }
}

@media (prefers-contrast: more) {
  :root { --osmos-border: rgba(169, 179, 197, .45); }
  [data-theme="light"] { --osmos-border: rgba(11, 17, 27, .45); }
  .t-body, .t-lead, .t-small { color: var(--osmos-text); }
}

/* ==========================================================================
   16. Motion layer

   Rule kept from the original build: motion explains, it does not decorate.
   Reveals are one-time, short, and small (12px), so the page settles rather
   than performs. Everything here is gated on [data-js] so a JS failure leaves
   content visible rather than blank, and on prefers-reduced-motion.
   ========================================================================== */
[data-js] [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 560ms var(--ease), transform 560ms var(--ease);
  transition-delay: calc(var(--i, 0) * 60ms);
}
[data-js] [data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  [data-js] [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* Ambient hero wash. The one place colour appears without knowledge moving —
   blurred, behind the content, and low enough that text contrast is untouched. */
/* overflow:clip, not hidden — the wash below bleeds past the section edge by
   design, and `hidden` would make the hero a scroll container (which steals
   focus scrolling) as well as widening the document. */
.hero { position: relative; isolation: isolate; overflow: clip; }
.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -30% -5% auto -5%;
  height: 620px;
  background:
    radial-gradient(58% 58% at 22% 32%, color-mix(in srgb, var(--flow-1) 26%, transparent), transparent 70%),
    radial-gradient(48% 48% at 78% 18%, color-mix(in srgb, var(--flow-4) 22%, transparent), transparent 72%),
    radial-gradient(46% 46% at 55% 58%, color-mix(in srgb, var(--flow-5) 14%, transparent), transparent 74%);
  filter: blur(36px);
  opacity: .55;
  animation: drift 26s var(--ease) infinite alternate;
  pointer-events: none;
}
[data-theme="light"] .hero::before { opacity: .3; }
@keyframes drift {
  from { transform: translate3d(-2%, 0, 0) scale(1); }
  to   { transform: translate3d(3%, 2%, 0) scale(1.06); }
}
@media (prefers-reduced-motion: reduce) { .hero::before { animation: none; } }

/* Cards lift slightly on hover — enough to read as a surface, never enough to
   move the layout. */
.card {
  transition: transform var(--t-standard) var(--ease),
              border-color var(--t-standard) var(--ease),
              background var(--t-standard) var(--ease);
}
@media (hover: hover) {
  .card:hover {
    transform: translateY(-2px);
    border-color: color-mix(in srgb, var(--osmos-text) 22%, transparent);
  }
}

/* Nav scrollspy: the underline marks where you are, not where you could go. */
.nav__link { position: relative; }
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 2px;
  height: 1.5px;
  border-radius: 2px;
  background: var(--flow-4);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-standard) var(--ease);
}
.nav__link[data-active="true"]::after { transform: scaleX(1); }
.nav__link[data-active="true"] { color: var(--osmos-text); }

/* FAQ open/close. <details> cannot animate height; a 0fr -> 1fr grid row can. */
[data-js] .faq__answer {
  display: grid;
  grid-template-rows: 1fr;
  padding-bottom: 0;
  transition: grid-template-rows var(--t-standard) var(--ease);
}
[data-js] .faq__item:not([open]) .faq__answer { grid-template-rows: 0fr; }
[data-js] .faq__item[open] .faq__answer { padding-bottom: var(--s-5); }
[data-js] .faq__answer > * { overflow: hidden; }

/* ==========================================================================
   17. The comet — the handoff pulse, improved.
   A bare dot reads as a loading spinner. A dot with a trail reads as something
   travelling from one place to another, which is the entire claim.
   ========================================================================== */
.axis__pulse::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 100%;
  translate: 0 -50%;
  width: 64px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(270deg, var(--pulse-color), transparent);
  opacity: .8;
}
/* Stacked layout travels top-to-bottom, so the trail follows above instead. */
@media (max-width: 59.99rem) {
  .axis__pulse::after {
    top: auto; bottom: 100%; right: auto; left: 50%;
    translate: -50% 0;
    width: 3px; height: 64px;
    background: linear-gradient(0deg, var(--pulse-color), transparent);
  }
}

/* The capture beat: the decision is recognised in the conversation before it
   reaches the shared layer, so the source card lights first. */
.moment[data-phase="capture"] .agent[data-role="source"] {
  border-color: color-mix(in srgb, var(--flow-1) 60%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--flow-1) 30%, transparent);
}

.axis__core {
  transition: border-color var(--t-standard) var(--ease),
              transform var(--t-standard) var(--ease);
}
.moment[data-phase="capture"] .axis__core,
.moment[data-phase="travel"] .axis__core { transform: scale(1.03); }
.moment[data-phase="capture"] .axis__core {
  border-color: color-mix(in srgb, var(--flow-1) 50%, transparent);
}
.axis__rev[data-bump="true"] { animation: rev-bump 520ms var(--ease); }
@keyframes rev-bump {
  0%   { transform: translateY(0); opacity: 1; }
  35%  { transform: translateY(-7px); opacity: 0; }
  36%  { transform: translateY(7px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

#moment-dest[data-arrived="true"] { animation: arrive 520ms var(--ease) both; }
@keyframes arrive {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}

/* ==========================================================================
   18. Contexts — named projects, switchable from the chat itself
   ========================================================================== */
.ctx-cards { display: grid; gap: var(--s-4); grid-template-columns: 1fr; }
@media (min-width: 48rem) { .ctx-cards { grid-template-columns: repeat(3, 1fr); } }
.ctx-cards > * { min-width: 0; }
.ctx-card {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-lg);
  background: var(--osmos-surface);
  transition: border-color var(--t-standard) var(--ease),
              background var(--t-standard) var(--ease);
}
.ctx-card[data-active="true"] {
  border-color: color-mix(in srgb, var(--flow-4) 60%, transparent);
  background: var(--osmos-surface-raised);
}
.ctx-card__top { display: flex; align-items: center; gap: var(--s-3); }
.ctx-card__name { font-size: 1rem; font-weight: 600; }
.ctx-card__rev {
  margin-left: auto;
  font-family: var(--osmos-font-mono);
  font-size: .75rem;
  color: var(--osmos-text-muted);
  font-variant-numeric: tabular-nums;
}
.ctx-card__meta { font-size: .8125rem; color: var(--osmos-text-muted); }
.ctx-card__live {
  display: none;
  align-items: center;
  gap: var(--s-2);
  font-size: .6875rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--osmos-text);
}
.ctx-card[data-active="true"] .ctx-card__live { display: inline-flex; }
.ctx-card__live::before {
  content: "";
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--flow-5);
  animation: live 2.6s var(--ease) infinite;
}
@keyframes live {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--flow-5) 55%, transparent); }
  70%  { box-shadow: 0 0 0 7px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
@media (prefers-reduced-motion: reduce) { .ctx-card__live::before { animation: none; } }

/* ==========================================================================
   19. Sharing dials — the Google-Docs model, made touchable
   ========================================================================== */
.dials { display: grid; gap: var(--s-4); grid-template-columns: 1fr; align-items: start; }
@media (min-width: 60rem) { .dials { grid-template-columns: 1.25fr 1fr; gap: var(--s-6); } }
.dials > * { min-width: 0; }

.dial-panel {
  padding: var(--s-5);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-lg);
  background: var(--osmos-surface);
}
.dial + .dial { margin-top: var(--s-5); padding-top: var(--s-5); border-top: 1px solid var(--osmos-border); }
.dial__name { font-size: .9375rem; font-weight: 600; }
.dial__note { margin: var(--s-2) 0 var(--s-3); font-size: .8125rem; color: var(--osmos-text-muted); }
.dial__opts { display: flex; flex-wrap: wrap; gap: var(--s-2); }
.dial__opt {
  min-height: 34px;
  padding: 0 var(--s-4);
  border-radius: 999px;
  border: 1px solid var(--osmos-border);
  background: transparent;
  color: var(--osmos-text-muted);
  font-size: .8125rem;
  cursor: pointer;
  transition: background var(--t-micro) var(--ease),
              border-color var(--t-micro) var(--ease),
              color var(--t-micro) var(--ease);
}
.dial__opt[aria-pressed="true"] {
  background: var(--osmos-surface-raised);
  border-color: color-mix(in srgb, var(--flow-4) 55%, transparent);
  color: var(--osmos-text);
}

.who {
  padding: var(--s-5);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-lg);
  background: var(--osmos-surface-raised);
}
.who__title {
  font-size: .75rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--osmos-text-muted); margin-bottom: var(--s-4);
}
.who__list { display: flex; flex-direction: column; gap: var(--s-2); }
.who__row {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-3);
  border-radius: var(--osmos-radius-sm);
  background: var(--osmos-bg);
  border: 1px solid var(--osmos-border);
  font-size: .8125rem;
  animation: mem-in var(--t-standard) var(--ease) both;
}
.who__level {
  margin-left: auto; flex: none;
  font-size: .6875rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--osmos-text-muted);
}
.who__row[data-level="edit"] .who__level,
.who__row[data-level="manage"] .who__level { color: var(--osmos-text); }
.who__note { margin-top: var(--s-4); font-size: .8125rem; color: var(--osmos-text-muted); }

/* ==========================================================================
   20. Sync receipt — what one agent was actually shown
   ========================================================================== */
.receipt {
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-lg);
  background: var(--osmos-surface);
  overflow: hidden;
}
.receipt__head {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  border-bottom: 1px solid var(--osmos-border);
}
.receipt__task { font-size: .9375rem; font-weight: 500; }
.receipt__when { margin-left: auto; font-size: .75rem; color: var(--osmos-text-muted); }
.receipt__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--osmos-border);
}
@media (min-width: 48rem) { .receipt__stats { grid-template-columns: repeat(4, 1fr); } }
.stat { padding: var(--s-5); background: var(--osmos-surface); }
.stat__n {
  display: block;
  font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.stat__l { display: block; margin-top: var(--s-2); font-size: .8125rem; color: var(--osmos-text-muted); }
.stat--held .stat__n { color: var(--osmos-text-muted); }
.receipt__foot {
  padding: var(--s-4) var(--s-5);
  border-top: 1px solid var(--osmos-border);
  font-size: .8125rem;
  color: var(--osmos-text-muted);
}

/* ==========================================================================
   21. App preview — a live surface rather than a screenshot
   ========================================================================== */
.appwin {
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-lg);
  background: var(--osmos-surface);
  overflow: hidden;
}
.appwin__bar {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-3) var(--s-4);
  border-bottom: 1px solid var(--osmos-border);
  background: var(--osmos-surface-raised);
}
.appwin__dots { display: flex; gap: 6px; }
.appwin__dots span { width: 9px; height: 9px; border-radius: 999px; background: var(--osmos-border); }
.appwin__where { font-size: .8125rem; color: var(--osmos-text-muted); }
.appwin__tabs { display: flex; gap: var(--s-1); padding: var(--s-3) var(--s-4) 0; overflow-x: auto; }
.apptab {
  position: relative;
  min-height: 38px;
  padding: 0 var(--s-4);
  border: 0;
  background: transparent;
  color: var(--osmos-text-muted);
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--t-micro) var(--ease);
}
.apptab::after {
  content: "";
  position: absolute; left: var(--s-3); right: var(--s-3); bottom: 0;
  height: 2px; border-radius: 2px;
  background: var(--flow-4);
  transform: scaleX(0);
  transition: transform var(--t-standard) var(--ease);
}
.apptab[aria-selected="true"] { color: var(--osmos-text); }
.apptab[aria-selected="true"]::after { transform: scaleX(1); }
.appwin__body { border-top: 1px solid var(--osmos-border); padding: var(--s-5); }
.apppanel { display: flex; flex-direction: column; gap: var(--s-2); animation: arrive 320ms var(--ease) both; }
.apppanel[hidden] { display: none; }
.approw {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-2) var(--s-3);
  padding: var(--s-3) var(--s-4);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-sm);
  background: var(--osmos-bg);
  font-size: .875rem;
}
.approw__main { min-width: 0; flex: 1 1 240px; }
.approw__meta { margin-left: auto; flex: none; font-size: .75rem; color: var(--osmos-text-muted); }
.badge {
  flex: none;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--osmos-border);
  font-family: var(--osmos-font-mono);
  font-size: .625rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--osmos-text-muted);
}
.badge--handoff { border-color: color-mix(in srgb, var(--flow-4) 55%, transparent); color: var(--osmos-text); }
.badge--private { border-style: dashed; }

/* ==========================================================================
   22. Tool list
   ========================================================================== */
.tools { display: grid; gap: var(--s-2); grid-template-columns: 1fr; }
@media (min-width: 40rem) { .tools { grid-template-columns: 1fr 1fr; } }
.tools > * { min-width: 0; }
.tool {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--s-2) var(--s-3);
  padding: var(--s-3) var(--s-4);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-sm);
  background: var(--osmos-surface);
}
.tool__n { font-family: var(--osmos-font-mono); font-size: .8125rem; color: var(--osmos-text); flex: none; }
.tool__d { font-size: .8125rem; color: var(--osmos-text-muted); }

/* ==========================================================================
   23. Small helpers
   ========================================================================== */
.center { text-align: center; }
.mt-4 { margin-top: var(--s-4); }
.mt-5 { margin-top: var(--s-5); }
.mt-6 { margin-top: var(--s-6); }
.mt-7 { margin-top: var(--s-7); }
.inline-cta { display: inline-flex; align-items: center; gap: var(--s-2); min-height: 24px; }

/* ==========================================================================
   24. Hosted-product surfaces

   Added when the site stopped describing something you run and started
   describing something you sign in to: a way back in from the nav, a pricing
   table, and two small fixes for markup that used to carry inline style
   attributes. Those attributes are gone because the app serves this site under
   `default-src 'self'`, which drops inline CSS — a style attribute here would
   simply not apply in production.
   ========================================================================== */

/* "Sign in" sits beside the primary action rather than in the link row: a
   returning customer should not have to find a menu to get back to their work.
   Hidden on the narrowest screens for the same reason the wordmark is — below
   ~420px the mark, toggle and CTA are already all that fits. */
.nav__link--action {
  display: none;
  align-items: center;
  min-height: 44px;
  padding-inline: var(--s-2);
}
@media (min-width: 26rem) { .nav__link--action { display: inline-flex; } }

/* The sync receipt lost two of its four figures when the site stopped teaching
   revisions and token budgets. Three across reads as a summary; three in a
   four-column grid reads as one that is missing something. */
.receipt__stats--three { grid-template-columns: 1fr; }
@media (min-width: 48rem) { .receipt__stats--three { grid-template-columns: repeat(3, 1fr); } }

.footer__blurb { max-width: 34ch; }
.footer__bottom--bare { margin-top: 0; padding-top: 0; border-top: 0; }
.footer__home { color: inherit; text-decoration: none; }
.footer__home:hover { color: var(--osmos-text); }

/* --- pricing ---------------------------------------------------------------
   Three plans, equal weight. Pro is marked with a single flow stroke and a
   raised surface rather than a gradient: the gradient means knowledge moving,
   and a price is not that. */
/* Deliberately not `align-items: start`: the three cards stretch to the tallest,
   which is what lets .plan__cta push the buttons onto one line. */
.plans { display: grid; gap: var(--s-4); grid-template-columns: 1fr; }
@media (min-width: 60rem) { .plans { grid-template-columns: repeat(3, 1fr); } }
.plans > * { min-width: 0; }

.plan {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  padding: var(--s-5);
  background: var(--osmos-surface);
  border: 1px solid var(--osmos-border);
  border-radius: var(--osmos-radius-lg);
}
@media (min-width: 48rem) { .plan { padding: var(--s-6); } }
.plan--feature {
  background: var(--osmos-surface-raised);
  border-color: color-mix(in srgb, var(--flow-4) 55%, transparent);
}

.plan__name { font-size: 1.0625rem; font-weight: 600; letter-spacing: .01em; }
.plan__price { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--s-2); }
.plan__amount {
  font-size: clamp(2.25rem, 1.9rem + 1.6vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.plan__per { font-size: .875rem; color: var(--osmos-text-muted); }
.plan__note { font-size: .875rem; color: var(--osmos-text-muted); }

.plan__list { display: flex; flex-direction: column; gap: var(--s-3); }
.plan__item {
  position: relative;
  padding-left: var(--s-5);
  font-size: .9375rem;
  line-height: 1.5;
  color: var(--osmos-text-muted);
}
/* A thin stroke rather than a tick: five of these stacked is the logo's stream
   spacing, and a column of ticks reads as a checklist to be audited. */
.plan__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: 10px;
  height: 1.5px;
  border-radius: 2px;
  background: var(--osmos-border);
}
.plan--feature .plan__item::before { background: color-mix(in srgb, var(--flow-4) 70%, transparent); }

/* Pushed to the bottom so the three buttons line up even when the lists differ
   in length — a ragged row of CTAs makes the middle plan look like the answer
   for the wrong reason. */
.plan__cta { margin-top: auto; align-self: flex-start; }