:root {
  color-scheme: light;
  --ink: #202124;
  --muted: #5f6368;
  --paper: #f6f8fc;
  --blue: #174ea6;
  --teal: #078994;
  --coral: #f45f50;
  --yellow: #fbbc04;
  --purple: #6941c6;
  --green: #18894b;
  --line: #e1e5eb;
  --dark: #152433;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { -webkit-tap-highlight-color: transparent; }
a:focus-visible { outline: 3px solid rgba(23,78,166,.28); outline-offset: 4px; }
h1, h2, h3 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-weight: 500; }
p { margin: 0; }

.page-header { position: sticky; z-index: 10; top: 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 112px; padding: 10px clamp(18px, 5vw, 76px); background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(18px); }
.brand img { display: block; width: clamp(280px, 34vw, 480px); height: 90px; object-fit: contain; object-position: left center; }
.back-link, .primary-link { display: inline-flex; gap: 10px; align-items: center; justify-content: center; min-height: 48px; padding: 12px 18px; color: #fff; background: var(--blue); border-radius: 999px; font-weight: 800; text-decoration: none; box-shadow: 0 4px 14px rgba(23,78,166,.22); }

.intro { position: relative; display: grid; overflow: hidden; grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr); gap: clamp(32px, 8vw, 120px); align-items: center; min-height: 640px; padding: clamp(70px, 9vw, 130px) clamp(20px, 8vw, 130px); background: radial-gradient(circle at 86% 18%, rgba(251,188,4,.25), transparent 21%), radial-gradient(circle at 78% 78%, rgba(8,137,148,.17), transparent 29%), #fff; }
.intro::after { position: absolute; right: -80px; bottom: -130px; width: 420px; aspect-ratio: 1; content: ""; border: 78px solid rgba(105,65,198,.035); border-radius: 50%; }
.intro-content, .conversation-visual { position: relative; z-index: 1; }
.eyebrow { margin: 0 0 16px; color: var(--teal); font-size: 12px; font-weight: 900; letter-spacing: .17em; text-transform: uppercase; }
.intro h1 { max-width: 920px; font-size: clamp(48px, 7vw, 96px); line-height: .95; letter-spacing: -.055em; }
.intro-copy { max-width: 720px; margin-top: 30px; color: var(--blue); font-size: clamp(18px, 2vw, 23px); line-height: 1.55; }
.preview-note { max-width: 720px; margin-top: 16px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.conversation-visual { display: grid; place-items: center; width: min(28vw, 330px); aspect-ratio: 1; justify-self: center; background: linear-gradient(145deg, #fff, #eef3ff); border: 1px solid #dfe7f8; border-radius: 50%; box-shadow: 0 28px 70px rgba(23,78,166,.14); }
.conversation-visual p { position: absolute; bottom: 18%; color: var(--blue); font-size: 12px; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.voice-orb { display: flex; gap: 7px; align-items: center; justify-content: center; width: 46%; height: 46%; background: linear-gradient(145deg, var(--coral), var(--purple)); border-radius: 50%; box-shadow: 0 18px 38px rgba(105,65,198,.25); }
.voice-orb span { width: 6px; height: 24px; background: #fff; border-radius: 999px; }
.voice-orb span:nth-child(2), .voice-orb span:nth-child(4) { height: 44px; }
.voice-orb span:nth-child(3) { height: 62px; }
.pulse { position: absolute; border: 1px solid rgba(23,78,166,.15); border-radius: 50%; }
.pulse-one { inset: 8%; }
.pulse-two { inset: 20%; }

.steps, .difference, .soon, .future { padding: clamp(72px, 9vw, 120px) clamp(20px, 6vw, 96px); }
.section-heading { max-width: 780px; }
.section-heading h2, .principles h2, .return-panel h2 { font-size: clamp(38px, 5vw, 66px); line-height: 1; letter-spacing: -.045em; }
.section-heading > p:last-child { margin-top: 18px; color: var(--muted); font-size: 17px; line-height: 1.6; }
.centered-heading { margin-inline: auto; text-align: center; }

.steps { background: #fff; }
.step-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; padding: 0; margin: 52px 0 0; list-style: none; }
.step-grid li { position: relative; min-height: 300px; padding: 24px; background: var(--paper); border: 1px solid var(--line); border-radius: 22px; }
.step-grid li::after { position: absolute; top: 65px; right: -13px; z-index: 2; width: 26px; height: 26px; color: #fff; content: "›"; background: var(--blue); border: 4px solid #fff; border-radius: 50%; font-size: 18px; line-height: 18px; text-align: center; }
.step-grid li:last-child::after { display: none; }
.step-grid li:nth-child(2) .step-icon { color: var(--coral); background: #fff0ee; }
.step-grid li:nth-child(3) .step-icon { color: #a66d00; background: #fff6d8; }
.step-grid li:nth-child(4) .step-icon { color: var(--teal); background: #e3f7f7; }
.step-grid li:nth-child(5) .step-icon { color: var(--purple); background: #f0eaff; }
.step-icon { display: grid; place-items: center; width: 58px; height: 58px; color: var(--blue); background: #e9f0ff; border-radius: 18px; font-size: 31px; font-weight: 700; }
.step-number { display: block; margin-top: 24px; color: var(--blue); font-size: 33px; font-weight: 900; line-height: 1; letter-spacing: .04em; }
.step-grid h3 { margin-top: 10px; font-size: 28px; }
.step-grid p { margin-top: 14px; color: var(--muted); font-size: 14px; line-height: 1.65; }

.difference { background: linear-gradient(180deg, #f6f8fc, #edf2fb); }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 48px; }
.feature-card { display: flex; gap: 18px; min-height: 190px; padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: 0 10px 30px rgba(36,53,79,.06); }
.feature-icon { display: grid; flex: 0 0 54px; place-items: center; width: 54px; height: 54px; color: var(--blue); background: #e9f0ff; border-radius: 17px; font-size: 27px; font-weight: 800; }
.feature-card h3 { font-size: 25px; line-height: 1.1; }
.feature-card p { margin-top: 12px; color: var(--muted); font-size: 14px; line-height: 1.6; }
.feature-coral .feature-icon { color: var(--coral); background: #fff0ee; }
.feature-teal .feature-icon { color: var(--teal); background: #e3f7f7; }
.feature-purple .feature-icon { color: var(--purple); background: #f0eaff; }
.feature-yellow .feature-icon { color: #a66d00; background: #fff6d8; }
.feature-green .feature-icon { color: var(--green); background: #e7f7ee; }
.experience-strip { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: center; margin-top: 40px; padding: 25px; color: #fff; background: var(--dark); border-radius: 24px; }
.experience-strip span { padding: 10px 15px; background: rgba(255,255,255,.09); border-radius: 999px; font-size: 13px; font-weight: 850; letter-spacing: .04em; }
.experience-strip b { color: #7bd5da; }

.principles { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(36px, 7vw, 100px); padding: clamp(72px, 9vw, 120px) clamp(20px, 6vw, 96px); color: #fff; background: var(--dark); }
.principles .eyebrow { color: #7bd5da; }
.principle-grid { display: grid; gap: 18px; }
.principle-grid article { display: grid; grid-template-columns: 48px 1fr; gap: 18px; padding: 23px; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.1); border-radius: 20px; }
.principle-grid article > span { color: #7bd5da; font-size: 36px; font-weight: 900; line-height: 1; letter-spacing: .04em; }
.principle-grid h3 { color: #fff; font-size: 24px; }
.principle-grid p { margin-top: 10px; color: #c2cfda; font-size: 14px; line-height: 1.65; }

.soon { background: #fff; }
.soon-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 48px; }
.soon-grid article { position: relative; min-height: 230px; padding: 28px; overflow: hidden; background: var(--paper); border: 1px solid var(--line); border-radius: 24px; }
.soon-grid article::before { position: absolute; top: 0; right: 0; padding: 8px 12px; color: var(--blue); content: "COMING SOON"; background: #e8efff; border-radius: 0 22px 0 14px; font-size: 9px; font-weight: 900; letter-spacing: .12em; }
.roadmap-icon { display: grid; place-items: center; width: 54px; height: 54px; color: #fff; background: linear-gradient(145deg, var(--coral), var(--purple)); border-radius: 17px; font-size: 24px; }
.soon-grid h3 { margin-top: 24px; font-size: 25px; }
.soon-grid p { margin-top: 12px; color: var(--muted); font-size: 14px; line-height: 1.6; }

.future { color: #fff; background: linear-gradient(135deg, #123e7b, #39256d); }
.future .eyebrow { color: #86dde0; }
.future .section-heading > p:last-child { color: #c9d7ea; }
.future-track { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin-top: 48px; overflow: hidden; background: rgba(255,255,255,.2); border: 1px solid rgba(255,255,255,.2); border-radius: 24px; }
.future-track article { min-height: 245px; padding: 28px; background: rgba(18,32,69,.74); }
.future-track span { color: #86dde0; font-size: 33px; font-weight: 900; line-height: 1; letter-spacing: .04em; }
.future-track h3 { margin-top: 48px; font-size: 25px; }
.future-track p { margin-top: 13px; color: #c9d7ea; font-size: 14px; line-height: 1.65; }

.return-panel { padding: clamp(72px, 9vw, 120px) clamp(20px, 8vw, 130px); text-align: center; background: #fff; }
.return-panel .primary-link { margin-top: 34px; }
footer { padding: 26px clamp(20px, 5vw, 76px); color: #aebcca; background: var(--dark); font-size: 12px; text-align: center; }
footer a { color: #fff; text-underline-offset: 3px; }

@media (max-width: 1100px) {
  .step-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .step-grid li:nth-child(3)::after { display: none; }
  .feature-grid, .soon-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .future-track { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .page-header { min-height: 88px; padding-inline: 16px; }
  .brand img { width: min(58vw, 300px); height: 68px; }
  .back-link { min-height: 44px; padding: 10px 13px; font-size: 12px; }
  .intro { grid-template-columns: 1fr; min-height: 0; }
  .conversation-visual { width: min(68vw, 290px); }
  .step-grid, .feature-grid, .soon-grid, .principles, .future-track { grid-template-columns: 1fr; }
  .step-grid li { display: grid; grid-template-columns: 58px 1fr; column-gap: 18px; min-height: 0; }
  .step-grid li::after { display: none; }
  .step-icon { grid-row: 1 / 4; }
  .step-number, .step-grid h3, .step-grid p { grid-column: 2; }
  .step-number { margin-top: 0; }
  .step-grid h3 { margin-top: 4px; }
  .feature-card { min-height: 0; }
  .future-track article { min-height: 210px; }
}

@media (max-width: 460px) {
  .back-link { width: 44px; padding: 0; font-size: 0; }
  .back-link span { font-size: 22px; }
  .feature-card { display: block; }
  .feature-card > div { margin-top: 20px; }
  .experience-strip b { display: none; }
}

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