:root {
  --blue: #0457cb;
  --blue-dark: #0348a8;
  --ink: #0a1317;
  --text: #1c1e21;
  --muted: #65686d;
  --faint: #8b9096;
  --line: #e6e8ec;
  --chip: #e7f1ff;
  --slab: #e8f2fe;
  --header: 68px;
  --sans: "Helvetica Neue", Helvetica, Arial, "Noto Sans", sans-serif;
  --display: "Montserrat", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --shadow: 0 12px 40px rgba(20, 30, 50, 0.08), 0 1px 3px rgba(20, 30, 50, 0.05);
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

button, input { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

::selection { background: #d6e6ff; }

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink);
}

h1 {
  font-size: clamp(40px, 4.4vw, 52px);
  line-height: 1.12;
  margin: 0;
}

p { margin: 0; }

a { color: inherit; }

.wrap {
  width: min(1280px, calc(100% - 40px));
  margin-inline: auto;
}

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  background: var(--blue);
  color: #fff;
  padding: 8px 14px;
  border-radius: 999px;
  z-index: 60;
  text-decoration: none;
}

.skip:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: #fff;
}

.site-header.is-scrolled { box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08); }

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  height: var(--header);
  gap: 8px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.03em;
}

.logo .mark { color: var(--blue); display: block; flex: none; }

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 18px;
}

.nav a:not(.btn) {
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  padding: 8px 12px;
  border-radius: 999px;
}

.nav a:not(.btn):hover,
.nav a[aria-current="page"] { background: #f2f4f7; }

.header-cta { margin-left: auto; }

.nav a.nav-cta { display: none; }

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  place-items: center;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  position: relative;
  border-radius: 2px;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

.nav-toggle[aria-expanded="true"] span { background: transparent; }

.nav-toggle[aria-expanded="true"] span::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::after {
  top: 0;
  transform: rotate(-45deg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 15px;
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--sans);
}

.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }

.btn-ghost {
  background: #fff;
  color: var(--blue);
  border-color: #d5d8dd;
}

.btn-ghost:hover { background: #f5f6f7; }

.eyebrow {
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 14px;
}

.pill {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--chip);
  color: var(--blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: minmax(320px, 580px) 1fr;
  gap: 20px;
  align-items: center;
  min-height: 540px;
  padding: 18px 0 28px;
}

.hero-copy h1 { font-size: clamp(38px, 3.2vw, 46px); max-width: none; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-stage {
  position: relative;
  min-height: 300px;
  display: grid;
  place-items: center;
}

.hero-stage::before {
  content: "";
  position: absolute;
  width: min(108%, 720px);
  height: 132px;
  border-radius: 70px;
  background: linear-gradient(#f7f8fa, #eef1f4);
}

.composer {
  position: relative;
  width: min(100%, 640px);
  height: 92px;
  border-radius: 999px;
  background: #fff;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 28px;
}

.composer .plus { width: 28px; height: 28px; flex: none; }

.composer p {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
}

.caret {
  display: inline-block;
  width: 2px;
  height: 0.9em;
  background: var(--blue);
  margin-left: 2px;
  vertical-align: -2px;
  animation: blink 1s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

@media (prefers-reduced-motion: no-preference) {
  .hero-copy, .composer { animation: rise 0.7s ease both; }
  .composer { animation-delay: 0.08s; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .caret, .hero-copy, .composer { animation: none; }
}

.model-card {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  min-height: 320px;
  margin: 4px 0 64px;
}

.model-copy { padding: 40px 40px 36px; }

.model-copy h2 {
  font-size: clamp(28px, 3vw, 36px);
  margin: 16px 0 12px;
  max-width: 16ch;
  line-height: 1.15;
}

.model-copy p {
  color: #3a3f45;
  font-size: 16px;
  line-height: 1.55;
  max-width: 46ch;
}

.wordfield {
  position: relative;
  min-height: 280px;
  background-color: #f5f9ff;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='132' font-family='Arial,sans-serif' font-size='13' font-weight='700' letter-spacing='3' fill='%23c5daf8'><text x='18' y='36'>MUSE</text><text x='118' y='36'>BRIDGE</text><text x='18' y='78'>AGENT</text><text x='124' y='78'>CHAT</text><text x='48' y='118'>DESK</text><text x='132' y='118'>YOURS</text></svg>");
  background-repeat: repeat;
}

.wordfield::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #fff, rgba(255, 255, 255, 0) 26%);
  pointer-events: none;
}

.wordfield .btn {
  position: absolute;
  right: 28px;
  bottom: 28px;
  z-index: 1;
}

.kicker {
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
  margin: 0 0 22px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px 22px;
  padding-bottom: 64px;
}

.news-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 14px;
  align-items: start;
  text-decoration: none;
  color: inherit;
}

.news-item h3 {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 650;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 0;
}

.news-item:hover h3 { text-decoration: underline; text-underline-offset: 3px; }

.news-item time {
  display: block;
  margin-top: 6px;
  color: var(--faint);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.thumb svg { display: block; width: 72px; height: 72px; }

.band {
  border-top: 1px solid var(--line);
  padding: 72px 0;
}

.band-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}

.band-copy { position: sticky; top: 96px; }

.band-copy h2 {
  font-size: clamp(34px, 3.4vw, 44px);
  line-height: 1.12;
  margin: 0 0 22px;
}

.stack { display: flex; flex-direction: column; gap: 22px; }

.photo-card {
  position: relative;
  height: 520px;
  border-radius: 28px;
  overflow: hidden;
  background: #d9e2ea;
}

.photo-card img,
.vision-photo img,
.panel-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-caption {
  position: absolute;
  z-index: 1;
  left: 20px;
  top: 20px;
  margin: 0;
  color: var(--ink);
  background: #fff;
  border-radius: 14px;
  padding: 10px 14px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.float-card {
  position: absolute;
  z-index: 1;
  left: 28px;
  bottom: 24px;
  width: 230px;
  background: #fff;
  border-radius: 16px;
  padding: 12px 14px 13px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.16);
}

.float-card strong {
  display: block;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.float-card span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 13px;
}

.slab {
  background: var(--slab);
  border-radius: 28px;
  min-height: 250px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 24px;
  gap: 14px;
}

.slab h2, .slab h3 {
  font-size: clamp(26px, 3vw, 32px);
  margin: 4px 0 0;
  max-width: 18ch;
}

.app-icon {
  width: 68px;
  height: 68px;
  border-radius: 18px;
  background: #fff;
  display: grid;
  place-items: center;
  color: var(--blue);
  box-shadow: 0 8px 20px rgba(20, 50, 90, 0.08);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
}

.text-link:hover { text-decoration: underline; text-underline-offset: 3px; }

.chev {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--blue);
  display: grid;
  place-items: center;
  font-size: 18px;
  line-height: 1;
  text-decoration: none;
}

.duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.panel {
  position: relative;
  border-radius: 28px;
  min-height: 500px;
  overflow: hidden;
}

.panel-chat {
  background: linear-gradient(165deg, #7eb0ff 0%, #2456c8 42%, #102a62 100%);
  display: grid;
  place-items: center;
  padding: 28px;
}

.ui-card {
  width: min(100%, 340px);
  background: #fff;
  border-radius: 22px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
  padding: 16px 16px 18px;
}

.ui-top {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-weight: 700;
  font-size: 14px;
}

.ui-top span { margin-right: auto; }

.ui-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 12px;
  color: #5b6470;
  font-size: 13px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3d8bfd;
  box-shadow: 0 0 0 4px #e7f1ff;
}

.ui-card h3 {
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 650;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  line-height: 1.35;
}

.ui-card .label {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
}

.ui-card ul {
  margin: 0;
  padding: 0 0 0 16px;
  color: #3a3f45;
  font-size: 14px;
}

.ui-card li { margin: 4px 0; }

.panel-photo { background: #d5dde6; min-height: 500px; }

.chip {
  position: absolute;
  left: 18px;
  bottom: 18px;
  margin: 0;
  background: #fff;
  border-radius: 14px;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.vision-photo {
  position: relative;
  height: 460px;
  border-radius: 28px;
  overflow: hidden;
  background: #111;
}

.vision-photo img { filter: grayscale(1) contrast(1.05); }

.vision-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.62), rgba(0, 0, 0, 0.12) 58%, rgba(0, 0, 0, 0.05));
}

.vision-copy {
  position: absolute;
  z-index: 1;
  left: 32px;
  bottom: 32px;
  max-width: 480px;
}

.vision-copy h2 {
  color: #fff;
  font-size: clamp(32px, 3.5vw, 42px);
  margin: 0 0 18px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr);
  gap: 28px 24px;
}

.site-footer h2 {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 0 10px;
}

.site-footer .col a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  padding: 5px 0;
}

.site-footer .col a:hover { text-decoration: underline; text-underline-offset: 2px; }

.fine {
  color: var(--muted);
  font-size: 14px;
  max-width: 26ch;
  margin-top: 14px;
}

.legal-line {
  color: var(--faint);
  font-size: 13px;
  margin-top: 36px;
}

.page-hero { padding: 28px 0 12px; max-width: 840px; }

.page-hero h1 { max-width: 16ch; }

.lead {
  margin-top: 16px;
  font-size: 18px;
  line-height: 1.5;
  color: #3a3f45;
  max-width: 46ch;
}

.block { padding: 36px 0 72px; }

.beats {
  list-style: none;
  padding: 8px 0 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.beats .num {
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.beats h2 {
  font-size: clamp(26px, 2.4vw, 32px);
  margin: 12px 0;
  max-width: 12em;
}

.beats p { color: #3a3f45; margin: 0; max-width: 32ch; }

.asks {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
}

.asks li {
  font-family: var(--display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink);
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.asks li:last-child { border-bottom: 1px solid var(--line); }

.os-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.os-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 28px 24px 24px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: #fff;
}

.os-card.is-current {
  border-color: #b9d2f5;
  background: #f5f9ff;
}

.os-card h2 { font-size: 28px; margin: 12px 0 8px; }

.os-card p {
  color: var(--muted);
  margin: 0 0 22px;
}

.os-card .btn { margin-top: auto; }

.os-note {
  margin-top: 14px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 600;
}

.faq { max-width: 760px; margin-top: 8px; }

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

.faq summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
  list-style: none;
}

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

.faq summary::after {
  content: "+";
  color: var(--blue);
  font-weight: 400;
  font-size: 26px;
  line-height: 1;
}

.faq details[open] summary::after { content: "–"; }

.faq details p {
  margin: 0 0 18px;
  color: #3a3f45;
  max-width: 62ch;
}

.prose { max-width: 68ch; }
.prose h2 { font-size: 28px; margin: 36px 0 10px; }
.prose p, .prose li { color: #3a3f45; font-size: 17px; line-height: 1.6; }
.prose a { color: var(--blue); }
.prose ul { padding-left: 18px; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

.split p { color: #3a3f45; font-size: 17px; max-width: 46ch; }
.split h2 { font-size: clamp(30px, 3vw, 40px); margin: 0 0 12px; }

@media (min-width: 900px) {
  .wrap { width: min(1280px, calc(100% - 80px)); }
}

@media (max-width: 980px) {
  .hero,
  .model-card,
  .band-grid,
  .duo,
  .os-grid,
  .beats,
  .footer-grid,
  .split { grid-template-columns: 1fr; }

  .band-copy { position: static; }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .hero { min-height: 0; }
  .page-hero h1, .model-copy h2 { max-width: none; }
  .photo-card, .vision-photo, .panel { height: auto; min-height: 420px; }
  .photo-card { height: 420px; }
  .vision-photo { height: 420px; }
}

@media (max-width: 900px) {
  .nav-toggle { display: grid; }
  .header-cta { display: none; }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 8px 18px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 24px rgba(0, 0, 0, 0.04);
  }

  .nav.is-open { display: flex; }
  .nav a:not(.btn) { padding: 12px; }
  .nav a.nav-cta { display: inline-flex; margin: 8px 12px 0; width: fit-content; }
}

@media (max-width: 640px) {
  .news-grid, .beats { grid-template-columns: 1fr; }
  .wrap { width: min(1280px, calc(100% - 32px)); }
  .composer { height: 68px; padding: 0 16px; gap: 10px; }
  .composer p { font-size: 17px; }
  .composer .plus { width: 22px; height: 22px; }
  .model-copy { padding: 28px 22px; }
  .wordfield .btn { right: 16px; bottom: 16px; }
  .float-card { left: 16px; bottom: 16px; }
  .photo-caption { left: 16px; top: 16px; font-size: 18px; }
  .vision-copy { left: 20px; right: 20px; bottom: 20px; }
  .slab h2, .slab h3, .vision-copy h2 { font-size: 28px; }
}