/* Hallmark · macrostructure: Workbench · tone: utilitarian · anchor hue: blue
 * pre-emit critique: P5 H5 E4 S5 R5 V4 · contrast: pass · responsive: pass
 */
:root {
  --navy: #071d4b;
  --navy-ink: #04122e;
  --blue: #075dff;
  --blue-2: #1648eb;
  --cyan: #0fd4ef;
  --paper: #d7e0ee;
  --sheet: #f3f6fb;
  --card: #ffffff;
  --ink: #13213b;
  --muted: #5c6b82;
  --line: #d5deea;
  --green: #15b77e;
  --amber: #ee9c24;

  --navy-a04: rgba(7, 29, 75, 0.04);
  --navy-a08: rgba(7, 29, 75, 0.08);
  --navy-a12: rgba(7, 29, 75, 0.12);
  --navy-a20: rgba(7, 29, 75, 0.2);
  --blue-a08: rgba(7, 93, 255, 0.08);
  --blue-a14: rgba(7, 93, 255, 0.14);
  --blue-a24: rgba(7, 93, 255, 0.24);
  --cyan-a20: rgba(15, 212, 239, 0.2);
  --green-a12: rgba(21, 183, 126, 0.12);
  --amber-a12: rgba(238, 156, 36, 0.12);
  --card-a12: rgba(255, 255, 255, 0.12);
  --card-a70: rgba(255, 255, 255, 0.7);

  --font-display: "Space Grotesk", "Noto Sans JP", sans-serif;
  --font-body: "Noto Sans JP", "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", monospace;

  --page: 76rem;
  --gutter: clamp(1rem, 4vw, 3rem);
  --radius-sm: 0.35rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --shadow-desk: 0 2rem 5rem var(--navy-a12);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --fs-nav: 1rem;
  --fs-button: 1rem;
  --fs-action: 1rem;
  --fs-eyebrow: 0.875rem;
  --fs-footer: 0.875rem;
  --fs-copy: 1rem;
  --fs-display-num: clamp(2rem, 5vw, 2.75rem);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
  overflow-x: clip;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--sheet);
  font-size: 1rem;
  line-height: 1.7;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--blue);
  text-underline-offset: 0.18em;
}

button,
summary,
a {
  -webkit-tap-highlight-color: transparent;
}

h1,
h2,
h3,
p {
  min-width: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-body);
  font-style: normal;
}

.wordmark {
  font-family: var(--font-display);
  font-style: normal;
}

h1 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(2.45rem, 6.5vw, 5.35rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(1.6rem, 3vw, 2.55rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

h3 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(1.15rem, 0.4vw + 1rem, 1.45rem);
  font-weight: 700;
}

code {
  font-family: var(--font-mono);
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
  background: var(--blue-a08);
  color: var(--navy);
  font-size: 0.88em;
  overflow-wrap: anywhere;
}

.page-width {
  width: min(100%, var(--page));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: fixed;
  inset-block-start: 0.75rem;
  inset-inline-start: 0.75rem;
  z-index: 50;
  padding: 0.55rem 0.8rem;
  transform: translateY(-5rem);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--navy);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.skip:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.site-header {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "brand action"
    "nav nav";
  align-items: center;
  min-height: 4.5rem;
  gap: 0.75rem;
  padding-inline: var(--gutter);
  background: var(--navy-ink);
  color: var(--card);
}

.brand {
  grid-area: brand;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: inherit;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 2.15rem;
  height: 2.15rem;
}

.wordmark {
  color: var(--card);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -0.045em;
}

.wordmark span {
  color: var(--cyan);
}

.site-nav {
  display: flex;
  grid-area: nav;
  align-items: stretch;
  justify-content: flex-start;
  min-height: 2.75rem;
  height: auto;
  margin-inline: calc(var(--gutter) * -1);
  padding-inline: var(--gutter);
  border-block-start: 1px solid var(--card-a12);
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding-inline: 1rem;
  color: var(--paper);
  font-size: var(--fs-nav);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.nav-link::after {
  position: absolute;
  inset-inline: 1rem;
  inset-block-end: 0;
  height: 0.2rem;
  background: var(--cyan);
  content: "";
  opacity: 0;
  transform: scaleX(0.35);
  transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out);
}

.nav-link.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.header-action {
  grid-area: action;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding-inline: 0.8rem;
  border: 1px solid var(--card-a12);
  border-radius: var(--radius-sm);
  background: var(--blue);
  color: var(--card);
  font-size: var(--fs-action);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.utility-label {
  margin: 0 0 0.75rem;
  color: var(--blue);
  font-size: var(--fs-eyebrow);
  font-weight: 800;
  letter-spacing: 0.09em;
}

.lede {
  max-width: 40rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  line-height: 1.8;
}

.home-hero {
  display: grid;
  gap: 2.25rem;
  padding-block: clamp(3.5rem, 8vw, 7.5rem);
}

.hero-copy {
  align-self: center;
}

.action-row,
.not-found-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-block-start: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding-inline: 1.15rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: var(--fs-button);
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 180ms var(--ease-out), border-color 180ms var(--ease-out), transform 180ms var(--ease-out);
}

.button:active,
.header-action:active {
  transform: translateY(1px);
}

.button-primary {
  background: var(--blue);
  color: var(--card);
  box-shadow: 0 0.75rem 2rem var(--blue-a24);
}

.button-secondary {
  border-color: var(--line);
  background: var(--card);
  color: var(--navy);
}

.button-disabled {
  border-color: var(--line);
  background: var(--paper);
  color: var(--muted);
  cursor: not-allowed;
}

.today-desk {
  position: relative;
  min-width: 0;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-desk);
  overflow: clip;
  transform: rotate(-0.6deg);
  animation: desk-arrive 650ms var(--ease-out) both;
}

.today-desk figcaption {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 3.25rem;
  padding-inline: 1rem;
  border-block-end: 1px solid var(--line);
  color: var(--navy);
  font-size: 0.78rem;
  font-weight: 800;
}

.today-desk figcaption time {
  margin-inline-start: auto;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0.25rem var(--green-a12);
}

.desk-layout {
  min-width: 0;
}

.room-list {
  display: none;
  padding: 1.15rem 0.75rem;
  border-inline-end: 1px solid var(--line);
  background: var(--sheet);
}

.room-list p {
  margin: 0;
}

.room-list-title {
  padding-inline: 0.7rem;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
}

.room {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-block-start: 0.45rem !important;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.76rem;
  white-space: nowrap;
}

.room span {
  color: var(--blue);
  font-family: var(--font-display);
  font-weight: 700;
}

.room b {
  display: grid;
  place-items: center;
  width: 1.2rem;
  height: 1.2rem;
  margin-inline-start: auto;
  border-radius: 50%;
  background: var(--blue);
  color: var(--card);
  font-size: 0.62rem;
}

.room.is-current {
  background: var(--blue-a08);
  color: var(--navy);
  font-weight: 700;
}

.message-list {
  display: grid;
  gap: 0;
  min-width: 0;
  margin: 0;
  padding: 0.35rem 1rem 1rem;
  list-style: none;
}

.message {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.75rem;
  padding-block: 1rem;
  border-block-end: 1px solid var(--line);
}

.message p {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.75;
}

.message-meta {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-block-end: 0.25rem !important;
}

.message-meta b {
  color: var(--navy);
}

.message-meta time {
  color: var(--muted);
  font-size: 0.68rem;
  font-variant-numeric: tabular-nums;
}

.avatar {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  background: var(--navy);
  color: var(--card);
  font-size: 0.72rem;
  font-weight: 700;
}

.avatar-blue {
  background: var(--blue-2);
}

.chip-all,
.chip-to {
  display: inline-flex;
  align-items: baseline;
  margin-inline-end: 0.35rem;
  padding: 0.02rem 0.42rem 0.08rem;
  border-radius: var(--radius-sm);
  background: var(--blue);
  color: var(--card);
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1.45;
  vertical-align: 0.05em;
  white-space: nowrap;
}

.chip-all b,
.chip-to b {
  margin-inline-end: 0.1rem;
  font-size: 0.52rem;
}

.chip-name {
  display: inline-flex;
  margin-inline-end: 0.35rem;
  padding-inline: 0.28rem;
  border-radius: var(--radius-sm);
  background: var(--blue-a08);
  color: var(--blue-2);
  font-size: 0.7rem;
  font-weight: 700;
  white-space: nowrap;
}

.task-slip {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.7rem;
  margin-block-start: 1rem;
  padding: 0.85rem;
  border-inline-start: 0.25rem solid var(--green);
  background: var(--green-a12);
}

.task-slip p,
.task-slip strong {
  display: block;
  margin: 0;
  font-size: 0.75rem;
}

.task-slip strong {
  color: var(--navy);
}

.task-slip .task-label {
  margin-block-end: 0.15rem;
  color: var(--green);
  font-size: 0.65rem;
  font-weight: 800;
}

.task-slip p:last-child {
  color: var(--muted);
}

.task-check {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  margin-block-start: 0.2rem;
  border: 2px solid var(--green);
  border-radius: 50%;
  background: var(--card);
}

.work-index {
  display: grid;
  gap: 2rem;
  padding-block: clamp(3.5rem, 8vw, 7rem);
  border-block-start: 1px solid var(--line);
}

.section-intro > p:last-child {
  max-width: 34rem;
  margin: 1rem 0 0;
  color: var(--muted);
}

.work-ledger {
  border-block-start: 2px solid var(--navy);
}

.work-ledger article {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1rem;
  padding-block: 1.25rem;
  border-block-end: 1px solid var(--line);
}

.work-ledger p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.ledger-mark {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  background: var(--navy);
  color: var(--card);
  font-family: var(--font-display);
  font-weight: 700;
}

.ledger-mark-to {
  background: var(--blue);
  font-size: 0.78rem;
}

.ledger-mark-task {
  background: var(--green);
}

.ledger-mark-thread {
  background: #2d4f86;
}

.ledger-mark-file {
  background: var(--blue-2);
}

.ledger-mark-group {
  background: #24437e;
}

.page-doors {
  display: grid;
  padding-block-end: clamp(4rem, 9vw, 7.5rem);
}

.page-doors a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.2rem 1rem;
  padding-block: 1.35rem;
  border-block-start: 1px solid var(--line);
  color: var(--navy);
  text-decoration: none;
}

.page-doors a:last-child {
  border-block-end: 1px solid var(--line);
}

.page-doors span {
  grid-column: 1;
  color: var(--blue);
  font-size: var(--fs-eyebrow);
  font-weight: 800;
  white-space: nowrap;
}

.page-doors strong {
  grid-column: 1;
  overflow: hidden;
  font-size: 1rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-doors i {
  grid-column: 2;
  grid-row: 1 / 3;
  align-self: center;
  color: var(--blue);
  font-style: normal;
  font-size: 1.4rem;
}

.page-lead {
  display: grid;
  align-items: end;
  gap: 0;
  padding-block: clamp(4rem, 9vw, 8rem);
}

.page-lead .lede {
  margin-block-start: 1.75rem;
}

.page-guide .page-lead h1 {
  max-width: 7em;
}

.thread-teaser {
  display: grid;
  gap: 2.5rem;
  padding-block: clamp(4rem, 9vw, 7rem);
  border-block-start: 1px solid var(--line);
}

.thread-teaser .section-intro {
  align-self: center;
}

.thread-teaser .section-intro > p:not(.utility-label) {
  max-width: 34rem;
  margin: 1rem 0 0;
  color: var(--muted);
}

.thread-teaser .text-link {
  margin-block-start: 1.5rem;
}

.thread-teaser-visual {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  min-width: 0;
  margin: 0;
  padding: clamp(0.8rem, 2.5vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow-desk);
}

.teaser-stream,
.teaser-panel {
  min-width: 0;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card);
}

.teaser-panel {
  box-shadow: -0.75rem 0.75rem 2rem var(--navy-a08);
}

.mini-channel,
.mini-panel-title {
  display: block;
  padding-block-end: 0.65rem;
  border-block-end: 1px solid var(--line);
  color: var(--navy);
  font-size: 0.7rem;
  font-weight: 800;
}

.mini-message,
.mini-reply {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.55rem;
  padding-block: 0.7rem;
}

.mini-message p,
.mini-reply span,
.mini-root {
  margin: 0;
  color: var(--muted);
  font-size: 0.66rem;
  line-height: 1.55;
}

.mini-message b,
.mini-reply b {
  color: var(--navy);
}

.mini-message.is-muted {
  opacity: 0.58;
}

.mini-avatar {
  display: grid;
  place-items: center;
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 0.3rem;
  color: var(--card);
  font-size: 0.58rem;
  font-style: normal;
  font-weight: 800;
}

.mini-avatar-navy {
  background: var(--navy);
}

.mini-avatar-blue {
  background: var(--blue);
}

.mini-avatar-green {
  background: var(--green);
}

.mini-thread-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.55rem;
  border-radius: var(--radius-sm);
  background: var(--blue-a08);
  color: var(--blue);
  font-size: 0.62rem;
  font-weight: 800;
}

.mini-thread-link b {
  display: grid;
  place-items: center;
  width: 1.1rem;
  height: 1.1rem;
  margin-inline-start: auto;
  border-radius: 50%;
  background: var(--blue);
  color: var(--card);
}

.teaser-arrow {
  padding-inline: 0.55rem;
  color: var(--blue);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  text-align: center;
  transform: rotate(90deg);
}

.mini-root {
  margin-block: 0.65rem 0.25rem;
  padding: 0.55rem;
  border-inline-start: 0.2rem solid var(--blue);
  background: var(--blue-a08);
  color: var(--navy);
}

.thread-hero {
  display: grid;
  gap: clamp(2.5rem, 7vw, 5rem);
  align-items: center;
  padding-block: clamp(4rem, 9vw, 8rem);
}

.thread-hero h1 {
  max-width: none;
  font-size: clamp(2.45rem, 5.2vw, 4.5rem);
}

.thread-hero h1 span {
  display: block;
  white-space: nowrap;
}

.thread-hero .button {
  margin-block-start: 2rem;
}

.thread-hero-figure {
  min-width: 0;
  margin: 0;
}

.thread-hero-figure figcaption {
  margin-block-start: 1rem;
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
}

.product-window {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-desk);
  overflow: clip;
}

.product-bar {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 2.4rem;
  padding-inline: 0.8rem;
  border-block-end: 1px solid var(--line);
  background: var(--navy);
}

.product-bar i {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--card-a70);
}

.product-bar span {
  margin-inline-start: 0.35rem;
  color: var(--card);
  font-family: var(--font-display);
  font-size: 0.66rem;
  font-weight: 700;
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  min-height: 24rem;
}

.product-rooms {
  display: none;
  padding: 1rem 0.65rem;
  border-inline-end: 1px solid var(--line);
  background: var(--sheet);
}

.product-rooms b,
.product-rooms span {
  display: block;
}

.product-rooms b {
  margin-block-end: 0.5rem;
  color: var(--muted);
  font-size: 0.63rem;
}

.product-rooms span {
  padding: 0.45rem;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.61rem;
  white-space: nowrap;
}

.product-rooms .is-current {
  background: var(--blue-a08);
  color: var(--navy);
  font-weight: 700;
}

.product-timeline {
  min-width: 0;
  padding: 1rem;
  border-inline-end: 1px solid var(--line);
  background: var(--card);
}

.product-timeline > strong {
  display: block;
  padding-block-end: 0.75rem;
  border-block-end: 1px solid var(--line);
  color: var(--navy);
  font-size: 0.72rem;
}

.product-thread {
  min-width: 0;
  padding: 0.9rem;
  background: var(--sheet);
}

.product-thread-head {
  display: flex;
  justify-content: space-between;
  padding-block-end: 0.7rem;
  border-block-end: 1px solid var(--line);
  color: var(--navy);
  font-size: 0.7rem;
}

.thread-root-quote {
  margin: 0.8rem 0 0.25rem;
  padding: 0.65rem;
  border-inline-start: 0.2rem solid var(--blue);
  background: var(--blue-a08);
  color: var(--navy);
  font-size: 0.66rem;
}

.diagram-message {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.55rem;
  padding-block: 0.8rem;
}

.diagram-avatar {
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--radius-sm);
  background: var(--navy);
  color: var(--card);
  font-size: 0.62rem;
  font-weight: 800;
}

.diagram-avatar-blue {
  background: var(--blue);
}

.diagram-avatar-green {
  background: var(--green);
}

.diagram-message p {
  margin: 0;
  color: var(--navy);
  font-size: 0.65rem;
  line-height: 1.45;
}

.diagram-message p b,
.diagram-message p span {
  display: block;
}

.diagram-message p span {
  margin-block-start: 0.15rem;
  color: var(--muted);
  font-weight: 400;
}

.diagram-message p span.chip-all,
.diagram-message p span.chip-to,
.diagram-message p span.chip-name {
  display: inline-flex;
  margin-block-start: 0;
  color: var(--card);
}

.diagram-message p span.chip-name {
  color: var(--blue-2);
}

.diagram-thread-button {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 2rem;
  padding-inline: 0.6rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--blue-a08);
  color: var(--blue);
  font-family: inherit;
  font-size: 0.62rem;
  font-weight: 800;
  pointer-events: none;
}

.diagram-thread-button b {
  display: grid;
  place-items: center;
  width: 1.1rem;
  height: 1.1rem;
  margin-inline-start: auto;
  border-radius: 50%;
  background: var(--blue);
  color: var(--card);
  font-size: 0.58rem;
}

.fake-composer {
  display: block;
  margin-block-start: 0.65rem;
  padding: 0.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: #8793a8;
  font-size: 0.62rem;
}

.thread-difference,
.thread-benefits,
.thread-howto {
  padding-block: clamp(4rem, 9vw, 7rem);
  border-block-start: 1px solid var(--line);
}

.thread-difference > .section-intro,
.thread-benefits > .section-intro,
.thread-howto > .section-intro,
.use-case-strip > .section-intro {
  margin-block-end: 2.5rem;
}

.comparison-board {
  display: grid;
  gap: 1.25rem;
}

.comparison-card {
  min-width: 0;
  padding: clamp(1.2rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-block-start: 0.3rem solid var(--navy);
  border-radius: var(--radius-md);
  background: var(--card);
  box-shadow: 0 1rem 3rem var(--navy-a08);
}

.comparison-card-thread {
  border-block-start-color: var(--blue);
}

.comparison-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
}

.comparison-heading p {
  margin: 0;
  color: var(--blue);
  font-size: var(--fs-eyebrow);
  font-weight: 800;
}

.comparison-heading h3 {
  margin-block-start: 0.15rem;
}

.comparison-number {
  color: var(--paper);
  font-family: var(--font-display);
  font-size: var(--fs-display-num);
  font-weight: 700;
  line-height: 1;
}

.chat-diagram,
.thread-tree-diagram {
  position: relative;
  min-height: 19rem;
  margin: 1.5rem 0;
  padding: 1rem;
  border-radius: var(--radius-md);
  background: var(--sheet);
  overflow: hidden;
}

.diagram-room-title {
  display: block;
  padding-block-end: 0.65rem;
  border-block-end: 1px solid var(--line);
  color: var(--navy);
  font-size: 0.7rem;
  font-weight: 800;
}

.chat-diagram .diagram-message {
  position: relative;
  z-index: 1;
  border-block-end: 1px solid var(--line);
}

.flow-line {
  position: absolute;
  inset-block: 3.4rem 1rem;
  inset-inline-start: 1.84rem;
  width: 1px;
  background: var(--line);
}

.tree-root {
  position: relative;
  z-index: 1;
  border: 1px solid var(--blue-a24);
  border-radius: var(--radius-sm);
  background: var(--card);
}

.tree-replies {
  position: relative;
  margin-inline-start: 1.2rem;
  padding-inline-start: 1.2rem;
}

.tree-replies::before {
  position: absolute;
  inset-block: 0 1.1rem;
  inset-inline-start: 0;
  width: 0.15rem;
  border-radius: 1rem;
  background: var(--blue-a24);
  content: "";
}

.tree-replies .diagram-message {
  position: relative;
  border-block-end: 1px solid var(--line);
}

.tree-replies .diagram-message::before {
  position: absolute;
  inset-block-start: 1.7rem;
  inset-inline-start: -1.2rem;
  width: 0.8rem;
  height: 0.15rem;
  background: var(--blue-a24);
  content: "";
}

.comparison-card ul {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: var(--fs-copy);
  list-style: none;
}

.comparison-card li {
  position: relative;
  padding-inline-start: 1.2rem;
}

.comparison-card li::before {
  position: absolute;
  inset-block-start: 0.65em;
  inset-inline-start: 0;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--blue);
  content: "";
}

.benefit-gallery {
  display: grid;
  gap: 1.25rem;
}

.benefit-gallery article {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card);
}

.benefit-gallery h3 {
  margin-block-start: 1.1rem;
}

.benefit-gallery article > p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.benefit-figure {
  position: relative;
  min-height: 13rem;
  margin: 0;
  padding: 2.7rem 1rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--sheet);
  overflow: hidden;
}

.benefit-tag {
  position: absolute;
  inset-block-start: 0.8rem;
  inset-inline-start: 0.8rem;
  color: var(--blue);
  font-size: var(--fs-eyebrow);
  font-weight: 800;
}

.question-card,
.answer-card {
  position: relative;
  z-index: 1;
  width: 80%;
  padding: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card);
  box-shadow: 0 0.6rem 1.5rem var(--navy-a08);
}

.answer-card {
  margin-block-start: 0.65rem;
  margin-inline-start: auto;
  border-color: var(--blue-a24);
}

.question-card b,
.answer-card b {
  color: var(--blue);
  font-size: 0.61rem;
}

.question-card p,
.answer-card p {
  margin: 0.15rem 0 0;
  color: var(--navy);
  font-size: 0.68rem;
}

.connector {
  position: absolute;
  inset-block-start: 6.6rem;
  inset-inline-start: 50%;
  width: 1px;
  height: 2.2rem;
  background: var(--blue-a24);
  transform: rotate(-35deg);
}

.clean-main {
  display: grid;
  gap: 0.45rem;
  width: 86%;
  padding: 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card);
  box-shadow: 0 0.8rem 2rem var(--navy-a08);
}

.clean-main b {
  color: var(--navy);
  font-size: 0.68rem;
}

.clean-main > span {
  padding: 0.45rem;
  border-block-start: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.64rem;
}

.clean-main .focus {
  display: flex;
  justify-content: space-between;
  border-radius: var(--radius-sm);
  background: var(--blue-a08);
  color: var(--navy);
  font-weight: 700;
}

.clean-main .focus i {
  color: var(--blue);
  font-size: 0.55rem;
  font-style: normal;
}

.clean-stack {
  position: absolute;
  inset-block-end: 1.25rem;
  inset-inline-end: 1rem;
  display: grid;
  gap: 0.3rem;
  width: 30%;
  padding: 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--blue);
  box-shadow: 0 0.8rem 2rem var(--blue-a24);
}

.clean-stack i {
  height: 0.25rem;
  border-radius: 1rem;
  background: var(--card-a70);
}

.unread-message {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.65rem;
  margin-block-start: 1.2rem;
  padding: 0.8rem;
  border: 1px solid var(--blue-a24);
  border-radius: var(--radius-sm);
  background: var(--card);
  box-shadow: 0 0.8rem 2rem var(--navy-a08);
}

.unread-message > span {
  display: grid;
  place-items: center;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: var(--radius-sm);
  background: var(--blue-a08);
  color: var(--blue);
  font-weight: 800;
}

.unread-message p,
.unread-message small {
  display: block;
  margin: 0;
}

.unread-message p {
  color: var(--navy);
  font-size: 0.65rem;
}

.unread-message small {
  margin-block-start: 0.2rem;
  color: var(--muted);
}

.unread-message > i {
  display: grid;
  place-items: center;
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  background: var(--blue);
  color: var(--card);
  font-size: 0.6rem;
  font-style: normal;
  font-weight: 800;
}

.unread-bell {
  position: absolute;
  inset-block-end: 1rem;
  inset-inline-end: 1rem;
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: var(--navy);
  color: var(--card);
  font-weight: 800;
}

.unread-bell b {
  position: absolute;
  inset-block-start: 0.15rem;
  inset-inline-end: 0.15rem;
  width: 0.65rem;
  height: 0.65rem;
  border: 2px solid var(--sheet);
  border-radius: 50%;
  background: #f13b5f;
}

.side-figure {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 0.5rem;
}

.side-figure .benefit-tag {
  grid-column: 1 / -1;
}

.side-pane {
  display: grid;
  align-content: start;
  gap: 0.55rem;
  min-width: 0;
  padding: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card);
}

.side-pane.is-thread {
  box-shadow: -0.5rem 0.5rem 1.5rem var(--navy-a08);
}

.side-pane b {
  color: var(--navy);
  font-size: 0.64rem;
}

.side-pane i {
  height: 2.1rem;
  border-radius: 0.25rem;
  background: var(--navy-a08);
}

.side-pane.is-thread i {
  background: var(--blue-a08);
}

.side-pane span {
  padding: 0.4rem;
  border: 1px solid var(--line);
  border-radius: 0.25rem;
  color: var(--muted);
  font-size: 0.56rem;
}

.use-case-strip {
  padding-block: clamp(4rem, 9vw, 7rem);
  border-block-start: 1px solid var(--line);
}

.use-case-grid {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.use-case-grid article {
  min-width: 0;
  padding: 1.25rem;
  background: var(--card);
}

.use-case-grid article.is-thread {
  background: #f2f6ff;
}

.use-case-icon {
  font-size: 1.5rem;
}

.use-case-grid h3 {
  margin-block-start: 0.65rem;
}

.use-case-grid p {
  min-height: 3.2rem;
  margin: 0.35rem 0 1rem;
  color: var(--muted);
  font-size: var(--fs-copy);
}

.use-case-grid strong {
  display: inline-flex;
  padding: 0.25rem 0.55rem;
  border-radius: 2rem;
  background: var(--navy);
  color: var(--card);
  font-size: var(--fs-eyebrow);
}

.use-case-grid .is-thread strong {
  background: var(--blue);
}

.thread-howto {
  display: grid;
  gap: 2rem;
}

.thread-steps {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  counter-reset: none;
  list-style: none;
}

.thread-steps li {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card);
}

.step-index {
  display: grid;
  grid-column: 1;
  grid-row: 2;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--blue);
  color: var(--card);
  font-family: var(--font-display);
  font-weight: 800;
}

.thread-steps li > div {
  grid-column: 2;
  grid-row: 2;
}

.thread-steps li > div p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.step-visual {
  position: relative;
  grid-column: 1 / -1;
  min-height: 7rem;
  margin: 0;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: var(--sheet);
  overflow: hidden;
}

.step-select .diagram-message {
  max-width: 20rem;
  border: 1px solid var(--blue-a24);
  border-radius: var(--radius-sm);
  background: var(--card);
  box-shadow: 0 0.7rem 1.8rem var(--navy-a08);
}

.cursor-ring {
  position: absolute;
  inset-block-end: 1rem;
  inset-inline-end: 1.4rem;
  width: 2rem;
  height: 2rem;
  border: 0.25rem solid var(--blue);
  border-radius: 50%;
  box-shadow: 0 0 0 0.35rem var(--blue-a14);
}

.step-reply {
  display: grid;
  gap: 0.45rem;
  align-content: start;
  max-width: 100%;
  background: #edf3ff;
}

.step-reply b {
  color: var(--navy);
  font-size: 0.7rem;
}

.step-reply span {
  padding: 0.55rem;
  border-inline-start: 0.2rem solid var(--blue);
  background: var(--card);
  color: var(--muted);
  font-size: 0.64rem;
}

.step-reply i {
  margin-block-start: 0.3rem;
  padding: 0.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: #8994a7;
  font-size: 0.64rem;
  font-style: normal;
}

.step-return {
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-return span {
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--blue-a08);
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 800;
}

.step-return b {
  display: grid;
  place-items: center;
  width: 1.55rem;
  height: 1.55rem;
  margin-inline-start: -0.25rem;
  border: 0.18rem solid var(--sheet);
  border-radius: 50%;
  background: var(--blue);
  color: var(--card);
  font-size: 0.65rem;
}

.thread-summary {
  display: grid;
  gap: 2rem;
  margin-block: clamp(4rem, 9vw, 7rem);
  padding-block: clamp(2.5rem, 6vw, 4rem);
  border-block: 2px solid var(--navy);
}

.thread-summary p:not(.utility-label) {
  max-width: 38rem;
  margin: 0;
  color: var(--muted);
}

.thread-summary .button {
  margin-block-start: 1.5rem;
}

.day-board {
  padding-block-end: clamp(4rem, 9vw, 8rem);
}

.day-step {
  display: grid;
  gap: 1.25rem;
  padding-block: 2rem;
  border-block-start: 1px solid var(--line);
}

.day-step:last-child {
  border-block-end: 1px solid var(--line);
}

.day-step > time {
  color: var(--blue);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.day-step > div:nth-child(2) p {
  max-width: 42rem;
  margin: 0.65rem 0 0;
  color: var(--muted);
}

.guide-sample {
  align-self: start;
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card);
  box-shadow: 0 0.8rem 2.5rem var(--navy-a08);
  font-size: 0.8rem;
}

.room-sample,
.workspace-sample {
  display: grid;
  gap: 0.25rem;
}

.room-sample span,
.workspace-sample span {
  color: var(--muted);
  font-size: 0.7rem;
}

.room-sample b,
.workspace-sample b {
  color: var(--navy);
}

.format-sample {
  display: grid;
  gap: 0.35rem;
  border-inline-start: 0.25rem solid var(--blue);
}

.sample-link {
  color: var(--blue);
  text-decoration: underline;
}

.to-sample {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.task-sample {
  display: flex;
  gap: 0.65rem;
  border-inline-start: 0.25rem solid var(--green);
}

.task-sample b,
.task-sample span {
  display: block;
}

.task-sample span:last-child {
  color: var(--muted);
  font-size: 0.7rem;
}

.plain-note {
  display: grid;
  gap: 1rem;
  padding-block: clamp(3rem, 7vw, 5rem);
  border-block-start: 1px solid var(--line);
}

.plain-note p {
  max-width: 44rem;
  margin: 0;
  color: var(--muted);
}

.plain-note > div > p + p,
.plain-note > div > .store-urls + p {
  margin-top: 1.25rem;
}

.release-board {
  display: grid;
  gap: 2rem;
  padding-block: 2rem;
  border-block: 2px solid var(--navy);
  background: var(--card);
  background-clip: content-box;
}

.release-title,
.release-action {
  padding-inline: clamp(1rem, 3vw, 2rem);
}

.release-title {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.release-title p {
  margin: 0.25rem 0 0;
  color: var(--muted);
}

.release-title .utility-label {
  margin: 0 0 0.3rem;
  color: var(--blue);
}

.os-tile {
  display: grid;
  flex: 0 0 auto;
  grid-template-columns: repeat(2, 0.85rem);
  grid-template-rows: repeat(2, 0.85rem);
  gap: 0.15rem;
  place-content: center;
  width: 4rem;
  height: 4rem;
  border-radius: var(--radius-md);
  background: var(--navy);
}

.os-tile i {
  background: var(--cyan);
}

.release-action {
  min-width: 0;
}

.release-spec {
  display: grid;
  margin: 1.5rem 0 0;
}

.release-spec div {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 0.75rem;
  padding-block: 0.55rem;
  border-block-start: 1px solid var(--line);
  font-size: var(--fs-eyebrow);
}

.release-spec dt {
  color: var(--muted);
}

.release-spec dd {
  min-width: 0;
  margin: 0;
}

.hash {
  font-family: var(--font-mono);
  overflow-wrap: anywhere;
}

.release-notice {
  margin: 1.5rem 0 0;
  padding: 0.8rem;
  border-inline-start: 0.25rem solid var(--amber);
  background: var(--amber-a12);
  color: var(--navy);
}

.install {
  display: grid;
  gap: 2.5rem;
  padding-block: clamp(4rem, 9vw, 7rem);
}

.install ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.install li {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: 1rem;
  padding-block: 1.25rem;
  border-block-start: 1px solid var(--line);
}

.install li:last-child {
  border-block-end: 1px solid var(--line);
}

.install li > span {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--navy);
  color: var(--card);
  font-family: var(--font-display);
  font-weight: 700;
}

.install li p {
  margin: 0;
}

.next-platform {
  padding-block: clamp(3rem, 7vw, 5rem);
  border-block-start: 1px solid var(--line);
}

.next-platform p:last-child {
  max-width: 42rem;
  margin: 1rem 0 0;
  color: var(--muted);
}

.faq-board {
  padding-block-end: clamp(4rem, 9vw, 8rem);
}

.faq-board details {
  border-block-start: 1px solid var(--line);
}

.faq-board details:last-child {
  border-block-end: 1px solid var(--line);
}

.faq-board summary {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.3rem 1rem;
  padding: 1.4rem 2.5rem 1.4rem 0;
  color: var(--navy);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  font-weight: 700;
  list-style: none;
}

.faq-board summary::-webkit-details-marker {
  display: none;
}

.faq-board summary span {
  grid-column: 1;
  color: var(--blue);
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: 800;
  letter-spacing: 0.05em;
}

.faq-board summary i {
  position: absolute;
  inset-block-start: 50%;
  inset-inline-end: 0.4rem;
  width: 1rem;
  height: 1rem;
  transform: translateY(-50%);
}

.faq-board summary i::before,
.faq-board summary i::after {
  position: absolute;
  inset-block-start: 50%;
  inset-inline: 0;
  height: 2px;
  background: var(--blue);
  content: "";
}

.faq-board summary i::after {
  transform: rotate(90deg);
  transition: transform 180ms var(--ease-out);
}

.faq-board details[open] summary i::after {
  transform: rotate(0);
}

.faq-board details > p {
  max-width: 52rem;
  margin: -0.25rem 0 1.5rem;
  color: var(--muted);
}

.not-found {
  display: grid;
  align-items: center;
  gap: 2rem;
  min-height: 65svh;
  padding-block: 4rem;
}

.error-code {
  margin: 0;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: clamp(7rem, 35vw, 19rem);
  font-weight: 700;
  line-height: 0.75;
  letter-spacing: -0.1em;
}

.site-cta {
  display: grid;
  gap: 1.5rem;
  margin-block: clamp(4rem, 9vw, 7rem);
  padding: clamp(1.5rem, 5vw, 3rem);
  border-radius: var(--radius-lg);
  background: var(--navy);
  color: var(--card);
}

.site-cta h2 {
  max-width: 38rem;
  color: var(--card);
}

.site-cta .utility-label {
  color: var(--cyan);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  width: fit-content;
  padding-block: 0.35rem;
  border-block-end: 2px solid currentColor;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.text-link-light {
  color: var(--card);
}

.site-footer {
  display: grid;
  gap: 0.6rem;
  padding: 2rem var(--gutter);
  border-block-start: 1px solid var(--card-a12);
  background: var(--navy-ink);
  color: var(--paper);
  font-size: var(--fs-footer);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--card);
  white-space: nowrap;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}

.legal-doc {
  display: grid;
  gap: 2rem;
  max-width: 46rem;
  padding-block-end: clamp(3rem, 8vw, 6rem);
}

.legal-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.9rem;
  padding: 0.9rem 0 0.2rem;
  border-bottom: 1px solid color-mix(in srgb, var(--line, #d7deea) 80%, transparent);
}

.legal-toc a {
  color: var(--muted);
  font-size: 0.86rem;
}

.legal-doc section > * {
  margin: 0;
}

.legal-doc h2 {
  font-size: 1.15rem;
}

.legal-doc h3 {
  margin-top: 1.1rem;
  font-size: 0.98rem;
}

.legal-doc h2 + p,
.legal-doc h2 + ul,
.legal-doc h3 + ul,
.legal-doc h3 + p {
  margin-top: 0.7rem;
}

.legal-doc p,
.legal-doc li {
  color: var(--muted);
}

.legal-doc ul {
  padding-inline-start: 1.2rem;
}

.legal-doc li + li {
  margin-top: 0.35rem;
}

.legal-doc code {
  font-size: 0.92em;
}

.store-urls {
  display: grid;
  gap: 0.7rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.store-urls li {
  display: grid;
  gap: 0.2rem;
}

.store-urls span {
  color: var(--muted);
  font-size: var(--fs-footer);
  font-weight: 700;
}

.store-urls a {
  overflow-wrap: anywhere;
}

.brand-footer {
  margin-block-end: 0.65rem;
}

.copyright {
  color: var(--muted);
}

.manual-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-block: 2rem 0.5rem;
}

.manual-jump a {
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--navy);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}

.manual-catalog {
  display: grid;
  gap: clamp(2.5rem, 6vw, 4rem);
  padding-block-end: clamp(3rem, 8vw, 5rem);
}

.manual-category .section-intro {
  margin-block-end: 1.1rem;
}

.manual-grid {
  display: grid;
  gap: 0.75rem;
}

.manual-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card);
  color: inherit;
  text-decoration: none;
}

.manual-card h3 {
  font-size: 1.02rem;
}

.manual-card p {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.manual-card i {
  color: var(--blue);
  font-style: normal;
  font-weight: 800;
}

.manual-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.55rem;
  padding-block: 1.75rem 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.manual-crumb a {
  color: var(--navy);
  text-decoration: none;
}

.manual-hero-visual {
  margin: 0 0 clamp(2rem, 5vw, 3rem);
}

.manual-hero-visual .product-window,
.manual-hero-visual .guide-sample,
.manual-hero-visual .unread-figure {
  margin: 0;
}

.manual-layout {
  display: grid;
  gap: 2rem;
  padding-block-end: clamp(3rem, 8vw, 6rem);
}

.manual-toc {
  display: grid;
  align-content: start;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card);
}

.manual-toc .utility-label {
  margin-top: 0.65rem;
}

.manual-toc .utility-label:first-child {
  margin-top: 0;
}

.manual-toc a {
  color: var(--ink);
  font-size: var(--fs-nav);
  font-weight: 600;
  text-decoration: none;
}

.manual-toc a[aria-current="page"] {
  color: var(--blue);
}

.manual-main {
  display: grid;
  gap: 2rem;
  min-width: 0;
}

.manual-atom {
  padding-block-end: 0.5rem;
  border-block-end: 1px solid var(--line);
}

.manual-atom:target {
  border-radius: var(--radius-md);
  outline: 3px solid var(--cyan-a20);
  outline-offset: 0.6rem;
}

.manual-when {
  margin: 0.45rem 0 1rem;
  color: var(--muted);
}

.manual-steps {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.manual-steps li {
  display: grid;
  grid-template-columns: 1.7rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: start;
}

.manual-steps span {
  display: grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 999px;
  background: var(--blue);
  color: var(--card);
  font-size: 0.78rem;
  font-weight: 800;
}

.manual-steps p {
  margin: 0.15rem 0 0;
}

.manual-empty {
  padding: 1.25rem 1.35rem;
  border-radius: var(--radius-md);
  background: var(--amber-a12);
}

.manual-empty h2 {
  font-size: 1.2rem;
}

.manual-empty p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.manual-related h2,
.manual-deep-link {
  margin: 0 0 0.9rem;
}

.manual-mock-form,
.manual-mock-menu,
.manual-file-rows,
.manual-people-rows,
.manual-task-board,
.manual-os-row,
.manual-mock-composer {
  display: grid;
  gap: 0.65rem;
  padding: 1.15rem 1.2rem 1.3rem;
}

.manual-mock-form b,
.manual-mock-menu b {
  color: var(--navy);
}

.manual-fake-field,
.manual-fake-btn {
  display: block;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--sheet);
  color: var(--muted);
  font-size: 0.88rem;
}

.manual-fake-btn {
  width: fit-content;
  background: var(--blue);
  color: var(--card);
  font-weight: 800;
}

.manual-mock-menu span,
.manual-file-rows p,
.manual-people-rows p {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem 0.8rem;
  margin: 0;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  background: var(--sheet);
}

.manual-mock-menu .is-current,
.manual-people-rows p {
  background: var(--blue-a08);
}

.manual-mock-menu .is-action {
  color: var(--blue);
  font-weight: 700;
}

.manual-mock-split {
  display: grid;
  gap: 0;
}

.manual-format-sample {
  margin: 1.15rem;
}

.manual-format-keys,
.manual-action-row {
  display: block;
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: var(--fs-eyebrow);
  font-weight: 700;
}

.manual-reaction-row {
  display: flex;
  gap: 0.45rem;
  padding-inline: 3.2rem 0;
}

.manual-reaction-row span {
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--blue-a08);
  font-size: 0.85rem;
}

.manual-task-board {
  grid-template-columns: 1fr;
}

.manual-task-board article {
  padding: 0.8rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--sheet);
}

.manual-task-board small,
.manual-task-board span {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
}

.manual-task-board .is-run {
  background: var(--blue-a08);
}

.manual-task-board .is-done {
  background: var(--green-a12);
}

.manual-people-rows p {
  align-items: center;
}

.manual-os-row {
  grid-template-columns: 1fr;
}

.manual-os-row span {
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--navy);
  color: var(--card);
  font-weight: 800;
  text-align: center;
}

@keyframes desk-arrive {
  from {
    opacity: 0;
    transform: translateY(1rem) rotate(-0.6deg);
  }
  to {
    opacity: 1;
    transform: translateY(0) rotate(-0.6deg);
  }
}

@media (min-width: 36rem) {
  .header-action {
    padding-inline: 1rem;
    font-size: var(--fs-action);
  }

  .desk-layout {
    display: grid;
    grid-template-columns: 8.5rem minmax(0, 1fr);
  }

  .room-list {
    display: block;
  }

  .message-list {
    padding-inline: 1.25rem;
  }

  .message p {
    font-size: 0.82rem;
  }

  .product-layout {
    grid-template-columns: 6.5rem minmax(0, 1fr) minmax(0, 0.9fr);
  }

  .thread-teaser-visual {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 0.82fr);
  }

  .teaser-arrow {
    transform: none;
  }

  .product-rooms {
    display: block;
  }

  .site-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .site-footer {
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1rem 2rem;
  }

  .brand-footer {
    grid-row: 1 / 4;
    margin: 0;
  }

  .site-footer .copyright {
    grid-column: 3;
    grid-row: 1 / 4;
  }
}

@media (min-width: 48rem) {
  .site-header {
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas: "brand nav action";
  }

  .site-nav {
    height: 4.5rem;
    min-height: 4.5rem;
    min-width: 0;
    justify-content: center;
    margin-inline: 0;
    padding-inline: 0;
    border-block-start: 0;
  }

  .nav-link {
    padding-inline: 0.7rem;
  }

  .home-hero {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: center;
  }

  .work-index {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  }

  .thread-teaser {
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
    align-items: center;
  }

  .thread-hero {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .comparison-board,
  .benefit-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .use-case-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .thread-howto {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  }

  .thread-howto > .section-intro {
    margin-block-end: 0;
  }

  .thread-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .thread-steps li {
    grid-template-rows: auto auto;
  }

  .thread-steps li > div {
    grid-column: 1 / -1;
  }

  .step-index {
    position: absolute;
    inset-block-start: 0.7rem;
    inset-inline-start: 0.7rem;
    z-index: 2;
    grid-column: auto;
    grid-row: auto;
  }

  .thread-summary {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 4rem;
  }

  .page-doors {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-doors a {
    padding-inline: 1.25rem;
    border-inline-start: 1px solid var(--line);
    border-block-end: 1px solid var(--line);
  }

  .page-doors a:last-child {
    border-inline-end: 1px solid var(--line);
  }

  .day-step {
    grid-template-columns: 4rem minmax(0, 1.35fr) minmax(13rem, 0.65fr);
    gap: 2rem;
  }

  .plain-note {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 3rem;
  }

  .release-board {
    grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.85fr);
    align-items: start;
    padding-block: 2.5rem;
  }

  .install {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  }

  .not-found {
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 1fr);
  }

  .manual-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .manual-layout {
    grid-template-columns: minmax(12rem, 0.32fr) minmax(0, 1fr);
    align-items: start;
  }

  .manual-toc {
    position: sticky;
    inset-block-start: 1rem;
  }

  .manual-mock-split,
  .manual-task-board,
  .manual-os-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .manual-task-board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .manual-os-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 72rem) {
  .site-header {
    padding-inline: max(var(--gutter), calc((100% - var(--page)) / 2 + var(--gutter)));
  }

  .nav-link {
    padding-inline: 1rem;
  }

  .home-hero {
    gap: 4rem;
  }

  .today-desk {
    margin-inline-end: -2.25rem;
  }
}

@media (hover: hover) and (pointer: fine) {
  .nav-link:hover::after {
    opacity: 1;
    transform: scaleX(1);
  }

  .header-action:hover,
  .button-primary:hover {
    background: var(--blue-2);
    transform: translateY(-2px);
  }

  .button-secondary:hover {
    border-color: var(--blue);
    background: var(--blue-a08);
  }

  .page-doors a:hover,
  .manual-card:hover,
  .manual-jump a:hover {
    background: var(--card-a70);
  }

  .manual-card:hover {
    background: var(--blue-a08);
  }

  .text-link:hover span,
  .page-doors a:hover i {
    transform: translateX(0.2rem);
  }
}

@media (pointer: coarse) {
  .button,
  .header-action,
  .nav-link {
    min-height: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}