/* ==========================================================================
   MiAIPlus — product site
   One dark canvas, one paper interlude. Type first, decoration second.
   ========================================================================== */

:root {
  /* ink palette */
  --ink-950: #0a0e0a;
  --ink-900: #0c110c;
  --ink-800: #111711;
  --ink-700: #161d16;
  --ink-600: #1d251d;
  --ink-500: #263026;

  /* paper palette */
  --paper: #f1f0e8;
  --paper-soft: #e7e6da;
  --paper-line: #d5d4c5;
  --paper-ink: #171c13;
  --paper-muted: #5d6653;

  /* type */
  --text: #edf1e7;
  --muted: #a2ae9d;
  --faint: #7d8a78;

  /* accent */
  --acid: #d4f47c;
  --acid-strong: #e3ff9d;
  --acid-dim: rgba(212, 244, 124, 0.14);
  --olive: #4d651f;
  --olive-soft: #5f7a2b;

  --hairline: rgba(237, 241, 231, 0.09);
  --hairline-strong: rgba(237, 241, 231, 0.16);

  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;

  --sans: "Inter", "SF Pro Text", -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Roboto Mono", ui-monospace, Menlo, Consolas, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --section-y: clamp(84px, 9vw, 148px);

  font-family: var(--sans);
  color: var(--text);
  background: var(--ink-900);
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(900px 560px at 78% -8%, rgba(212, 244, 124, 0.07), transparent 62%),
    radial-gradient(700px 480px at 8% 14%, rgba(212, 244, 124, 0.035), transparent 60%),
    var(--ink-900);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }
img, svg { display: block; max-width: 100%; }

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--acid);
  outline-offset: 4px;
  border-radius: 4px;
}

::selection { background: var(--acid); color: var(--ink-900); }

h1, h2, h3, p, ol, ul { margin: 0; }

.wrap {
  width: min(1240px, 100% - clamp(40px, 8vw, 112px));
  margin-inline: auto;
}

.mono,
.eyebrow,
.card-no,
.screen-code,
.route-code,
.control-no,
.micro-no,
.hero-foot .mono {
  font-family: var(--mono);
}

.skip {
  position: fixed;
  top: -120px;
  left: 20px;
  z-index: 50;
  padding: 12px 18px;
  border-radius: 10px;
  background: var(--acid);
  color: var(--ink-900);
  font-size: 13px;
  font-weight: 600;
  transition: top 0.2s var(--ease);
}
.skip:focus { top: 14px; }

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(10, 14, 10, 0.72);
  backdrop-filter: saturate(140%) blur(16px);
  -webkit-backdrop-filter: saturate(140%) blur(16px);
  border-bottom: 1px solid var(--hairline);
}

.nav-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 18px;
  font-weight: 620;
  letter-spacing: -0.01em;
}

.brand-icon {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: var(--acid);
  color: var(--ink-900);
  font-size: 22px;
  line-height: 1;
  font-weight: 400;
  padding-bottom: 2px;
}

.nav nav {
  display: flex;
  gap: 34px;
  font-size: 13.5px;
  color: var(--muted);
}
.nav nav a { transition: color 0.18s ease; }
.nav nav a:hover { color: var(--text); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--hairline-strong);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text);
  transition: border-color 0.18s ease, background 0.18s ease;
}
.nav-cta span { color: var(--acid); font-size: 12px; }
.nav-cta:hover { border-color: rgba(212, 244, 124, 0.5); background: rgba(212, 244, 124, 0.06); }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
  padding-top: clamp(56px, 7vw, 96px);
  padding-bottom: clamp(40px, 5vw, 64px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

.eyebrow-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 0 3px var(--acid-dim);
  flex-shrink: 0;
}

h1 {
  margin: 26px 0 26px;
  font-size: clamp(52px, 7.6vw, 96px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  font-weight: 640;
}

.accent { color: var(--acid); }

.lead {
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.9;
  color: var(--muted);
  letter-spacing: 0.005em;
}

.actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 28px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 26px;
  padding: 15px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  transition: transform 0.22s var(--ease), background 0.22s var(--ease),
    box-shadow 0.22s var(--ease);
}

.button.primary {
  background: var(--acid);
  color: var(--ink-900);
  box-shadow: 0 0 0 0 rgba(212, 244, 124, 0);
}
.button.primary span { font-size: 13px; opacity: 0.75; }
.button.primary:hover {
  background: var(--acid-strong);
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -14px rgba(212, 244, 124, 0.55);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 13.5px;
  color: var(--text);
  padding-block: 6px;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.text-link span { color: var(--acid); font-size: 12px; transition: transform 0.22s var(--ease); }
.text-link:hover { border-color: var(--hairline-strong); }
.text-link:hover span { transform: translate(2px, -2px); }

.hero-note {
  margin-top: 20px;
  font-size: 12.5px;
  color: var(--faint);
}

/* Hero art ---------------------------------------------------------------- */

.hero-art {
  position: relative;
  min-width: 0;
  aspect-ratio: 1 / 1.02;
  isolation: isolate;
}

.art-grid {
  position: absolute;
  inset: -6% -4%;
  background-image:
    linear-gradient(to right, rgba(237, 241, 231, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(237, 241, 231, 0.055) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(closest-side at 55% 48%, #000 35%, transparent 100%);
  mask-image: radial-gradient(closest-side at 55% 48%, #000 35%, transparent 100%);
  z-index: -2;
}

.art-glow {
  position: absolute;
  width: 68%;
  aspect-ratio: 1;
  right: 2%;
  top: 4%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 244, 124, 0.17), transparent 66%);
  filter: blur(24px);
  z-index: -1;
}

/* back display */
.screen-back {
  position: absolute;
  right: -1%;
  top: 2%;
  width: 70%;
  border-radius: var(--radius-md);
  background: linear-gradient(155deg, #1b2418, #141b12 62%);
  border: 1px solid rgba(212, 244, 124, 0.2);
  box-shadow:
    0 30px 70px -30px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transform: rotate(2.2deg);
  overflow: hidden;
}

.screen-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  border-bottom: 1px solid rgba(212, 244, 124, 0.12);
  font-size: 11px;
  color: #c4d3b5;
}

.screen-title { display: inline-flex; align-items: center; gap: 8px; }
.screen-title i,
.pulse {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--acid);
  display: inline-block;
  flex-shrink: 0;
}

.screen-code {
  font-size: 9px;
  letter-spacing: 0.16em;
  color: #8d9c82;
}

.screen-body { padding: 20px 20px 22px 30%; }

.screen-kicker {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: #8d9c82;
}

.screen-heading {
  margin: 8px 0 16px;
  font-size: 20px;
  font-weight: 550;
  letter-spacing: -0.01em;
  color: #e6f0da;
}

.mini-steps {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 11px;
  font-size: 11.5px;
  color: #a8b89c;
}
.mini-steps li { display: flex; align-items: center; gap: 9px; }
.mini-steps i {
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  font-style: normal;
  font-size: 9px;
  background: rgba(212, 244, 124, 0.1);
  color: var(--acid);
  flex-shrink: 0;
}
.mini-steps li.done { color: #97a88a; }
.mini-steps li.active { color: #eef6e2; }
.mini-steps li.active i { background: var(--acid); color: #14200d; }

.progress {
  margin-top: 18px;
  height: 3px;
  background: rgba(212, 244, 124, 0.12);
  border-radius: 4px;
  overflow: hidden;
}
.progress span {
  display: block;
  width: 62%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #9fc25a, var(--acid));
  animation: progress-drift 5.5s var(--ease) infinite alternate;
}

@keyframes progress-drift {
  from { width: 54%; }
  to { width: 74%; }
}

.screen-foot {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 7px;
  padding: 11px 18px 13px;
  border-top: 1px solid rgba(212, 244, 124, 0.1);
  font-size: 9px;
  letter-spacing: 0.06em;
  color: #8d9c82;
}

/* phone */
.phone {
  position: absolute;
  left: 0;
  bottom: 3%;
  width: 39%;
  max-width: 220px;
}

.phone-frame {
  position: relative;
  aspect-ratio: 0.485;
  border-radius: 34px;
  padding: 7px;
  background: linear-gradient(160deg, #d9dccd, #aab09d);
  box-shadow:
    0 40px 80px -34px rgba(0, 0, 0, 0.95),
    inset 0 0 0 1px rgba(255, 255, 255, 0.4);
  transform: rotate(-4deg);
}

.phone-screen {
  position: relative;
  height: 100%;
  border-radius: 28px;
  background: linear-gradient(175deg, #f7f8f1, #e9ecdf);
  color: var(--paper-ink);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 10px 12px 12px;
}

.phone-island {
  position: absolute;
  top: 9px;
  left: 50%;
  transform: translateX(-50%);
  width: 52px;
  height: 15px;
  border-radius: 20px;
  background: #12180f;
  z-index: 2;
}

.phone-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 8px;
  font-weight: 600;
  color: #3c4534;
  padding: 2px 2px 0;
}
.status-icons { font-size: 7px; letter-spacing: 0.02em; color: #59634f; }

.chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 26px;
  min-height: 0;
}

.chat-name {
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #6b7560;
  margin-bottom: 2px;
}

.bubble {
  font-size: 9px;
  line-height: 1.55;
  max-width: 92%;
  padding: 8px 10px;
  border-radius: 12px;
}

.bubble-user {
  align-self: flex-end;
  background: #1a2116;
  color: #eef3e6;
  border-bottom-right-radius: 4px;
}

.bubble-ai {
  align-self: flex-start;
  background: #ffffff;
  border: 1px solid #d9ddcc;
  border-bottom-left-radius: 4px;
  display: grid;
  gap: 5px;
  padding: 9px 10px;
  box-shadow: 0 6px 16px -12px rgba(23, 28, 19, 0.5);
}

.ai-step {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 8.5px;
  color: #4c5642;
}
.ai-step i {
  font-style: normal;
  color: #4d651f;
  font-size: 8px;
}

.chat-task {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(23, 28, 19, 0.055);
  border: 1px solid rgba(23, 28, 19, 0.08);
  font-size: 7.5px;
  color: #5b6651;
}
.chat-task i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #4d651f;
  flex-shrink: 0;
}
.chat-task b { margin-left: auto; font-weight: 600; color: #3f4a36; }

.typing { display: inline-flex; gap: 3px; padding: 2px 0 0 1px; }
.typing b {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #8a947d;
  animation: typing 1.4s infinite ease-in-out;
}
.typing b:nth-child(2) { animation-delay: 0.18s; }
.typing b:nth-child(3) { animation-delay: 0.36s; }

@keyframes typing {
  0%, 60%, 100% { opacity: 0.35; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-2px); }
}

.phone-input {
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 8px 8px 8px 11px;
  border-radius: 100px;
  background: #ffffff;
  border: 1px solid #dde1d2;
  font-size: 7.5px;
  color: #7d8772;
}

.mic {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: inset 0 0 0 1px rgba(23, 28, 19, 0.08);
  flex-shrink: 0;
}

.art-caption {
  position: absolute;
  right: 2%;
  bottom: 0;
  font-size: 9.5px;
  letter-spacing: 0.02em;
  color: var(--faint);
}

.hero-foot {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  font-size: 11.5px;
  color: var(--faint);
}
.hero-foot .mono { font-size: 9.5px; letter-spacing: 0.16em; }

/* --------------------------------------------------------------------------
   Shared section furniture
   -------------------------------------------------------------------------- */

.section { padding-block: var(--section-y); }

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 24px 48px;
  align-items: end;
}
.section-intro .eyebrow { grid-column: 1 / -1; }

h2 {
  font-size: clamp(38px, 4.4vw, 58px);
  line-height: 1.22;
  letter-spacing: -0.018em;
  font-weight: 620;
}

.section-lead,
.section-copy {
  font-size: 15px;
  line-height: 1.95;
  color: var(--muted);
  padding-bottom: 6px;
}

/* --------------------------------------------------------------------------
   Capabilities
   -------------------------------------------------------------------------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: clamp(36px, 4.5vw, 60px);
}

.feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 2.6vw, 38px);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.feature-card.is-light {
  background: var(--paper);
  color: var(--paper-ink);
}

.feature-card.is-dark {
  background: linear-gradient(165deg, #182016, #121812 70%);
  border: 1px solid var(--hairline);
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--faint);
}
.is-light .card-head { color: var(--paper-muted); }

.card-arrow {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid currentColor;
  font-size: 12px;
  opacity: 0.55;
}
.is-dark .card-arrow { color: var(--acid); opacity: 0.9; border-color: rgba(212, 244, 124, 0.35); }

.feature-card h3 {
  margin-top: 32px;
  font-size: clamp(27px, 2.5vw, 34px);
  line-height: 1.4;
  letter-spacing: -0.012em;
  font-weight: 620;
}

.feature-card > p {
  margin-top: 16px;
  max-width: 38ch;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--paper-muted);
}
.feature-card.is-dark > p { color: var(--muted); }

.gesture-visual {
  position: relative;
  margin: 30px 0 26px;
  height: 178px;
  display: grid;
  place-items: center;
}

.mini-app {
  width: min(84%, 320px);
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid #d3d3c2;
  box-shadow: 0 18px 36px -26px rgba(23, 28, 19, 0.55);
  display: grid;
  gap: 9px;
  transform: rotate(-1.2deg);
}

.mini-app-bar { display: flex; gap: 4px; margin-bottom: 3px; }
.mini-app-bar i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #c7c9b8;
}

.mini-row {
  height: 26px;
  border-radius: 8px;
  background: #e9eadf;
}
.mini-row.muted { opacity: 0.75; }
.mini-row.short { width: 62%; }

.mini-row.target {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: 10px;
  background: #1a2116;
  color: #eef3e6;
  font-size: 11px;
  position: relative;
}
.mini-row.target::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  border: 1px solid rgba(77, 101, 31, 0.5);
}
.mini-row.target span { color: var(--acid); font-size: 10px; }

.tap-ring {
  position: absolute;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1.5px solid rgba(77, 101, 31, 0.55);
  right: 16%;
  top: 47%;
  animation: tap-pulse 2.8s var(--ease) infinite;
}
.tap-ring::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  background: rgba(77, 101, 31, 0.14);
}

@keyframes tap-pulse {
  0% { transform: scale(0.82); opacity: 0; }
  35% { opacity: 1; }
  75%, 100% { transform: scale(1.28); opacity: 0; }
}

.tap-chip {
  position: absolute;
  right: 6%;
  bottom: 10px;
  padding: 6px 11px;
  border-radius: 100px;
  background: #1a2116;
  color: #eef3e6;
  font-size: 10px;
  font-family: var(--mono);
  letter-spacing: 0.02em;
  transform: rotate(1.4deg);
}

.card-link {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  border-top: 1px solid #cdcdbc;
  font-size: 12.5px;
  font-weight: 500;
  transition: color 0.18s ease;
}
.card-link span { transition: transform 0.22s var(--ease); }
.card-link:hover span { transform: translate(3px, -3px); }

/* dual screen visual */
.dual-visual {
  position: relative;
  margin: 30px 0 24px;
  height: 196px;
}

.dual-plane,
.dual-card {
  position: absolute;
  border-radius: 16px;
  padding: 16px 17px;
}

.dual-plane {
  right: 0;
  top: 0;
  width: 64%;
  height: 100%;
  padding-left: 40%;
  background:
    repeating-linear-gradient(0deg, rgba(212, 244, 124, 0.045) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, rgba(212, 244, 124, 0.045) 0 1px, transparent 1px 24px),
    #10160e;
  border: 1px solid rgba(212, 244, 124, 0.22);
  transform: rotate(1.6deg);
}

.dual-pane { display: flex; flex-direction: column; }

.dual-label {
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: #8d9c82;
}

.dual-plane strong {
  display: block;
  margin-top: 10px;
  font-size: 20px;
  font-weight: 550;
  letter-spacing: -0.01em;
  color: #e6f0da;
}

.dual-code {
  position: absolute;
  right: 16px;
  bottom: 14px;
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.14em;
  color: #6f7f64;
}

.dual-card {
  left: 0;
  bottom: 0;
  width: 54%;
  background: linear-gradient(170deg, #f6f7f0, #e3e7d8);
  color: var(--paper-ink);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 26px 50px -26px rgba(0, 0, 0, 0.9);
  transform: rotate(-2.4deg);
  z-index: 2;
}
.dual-card .dual-label { color: #6b7560; }
.dual-card strong {
  display: block;
  margin-top: 9px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.dual-lines { margin-top: 16px; display: grid; gap: 6px; }
.dual-lines i { height: 4px; border-radius: 4px; background: #c9cfba; }
.dual-lines i:nth-child(2) { width: 74%; }
.dual-lines i:nth-child(3) { width: 52%; }

.card-note {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--hairline);
  font-size: 11px;
  line-height: 1.8;
  color: var(--faint) !important;
  max-width: none !important;
}

/* micro grid */
.micro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 clamp(28px, 3.5vw, 48px);
  margin-top: clamp(44px, 5vw, 64px);
}

.micro-grid article {
  border-top: 1px solid var(--hairline);
  padding-top: 20px;
}

.micro-no {
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--acid);
}

.micro-grid h3 {
  margin: 14px 0 10px;
  font-size: 15.5px;
  font-weight: 550;
  line-height: 1.6;
}

.micro-grid p {
  font-size: 12.5px;
  line-height: 1.95;
  color: var(--muted);
}

.micro-grid small {
  display: block;
  margin-top: 12px;
  font-size: 10.5px;
  line-height: 1.8;
  color: var(--faint);
}

/* --------------------------------------------------------------------------
   Model section — paper interlude
   -------------------------------------------------------------------------- */

.model-section {
  background: var(--paper);
  color: var(--paper-ink);
  padding-block: var(--section-y);
}

.model-section .eyebrow { color: #7c8571; }
.model-section .eyebrow-dot { background: #5f7a2b; box-shadow: 0 0 0 3px rgba(95, 122, 43, 0.14); }

.model-header {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 24px 48px;
  align-items: end;
}
.model-header h2 { margin-top: 24px; }
.model-section .accent { color: var(--olive); }
.model-header > p {
  font-size: 15px;
  line-height: 1.95;
  color: var(--paper-muted);
  padding-bottom: 6px;
}

.model-switch {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: clamp(32px, 4vw, 48px);
  padding: 5px;
  border-radius: 100px;
  background: rgba(23, 28, 19, 0.06);
  border: 1px solid rgba(23, 28, 19, 0.08);
}

.model-switch button {
  border: 0;
  border-radius: 100px;
  padding: 10px 20px;
  background: transparent;
  color: #5f6855;
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 500;
  transition: background 0.22s var(--ease), color 0.22s var(--ease),
    box-shadow 0.22s var(--ease);
}

.model-switch button:hover { color: var(--paper-ink); }

.model-switch button[aria-pressed="true"] {
  background: var(--paper-ink);
  color: var(--acid);
  box-shadow: 0 8px 18px -12px rgba(23, 28, 19, 0.75);
}

.model-switch button:focus-visible { outline-color: var(--olive); }

.routing-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(36px, 5vw, 76px);
  align-items: center;
  margin-top: clamp(36px, 4.5vw, 60px);
  padding: clamp(28px, 3.4vw, 44px);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.42);
}

.routing-art {
  display: grid;
  grid-template-columns: auto minmax(56px, 120px) minmax(0, 1fr);
  align-items: center;
  min-width: 0;
}

.route-node {
  display: flex;
  flex-direction: column;
  padding: 20px 22px;
  border-radius: 14px;
}

.route-source {
  background: var(--paper-ink);
  color: #eef3e6;
  box-shadow: 0 18px 34px -24px rgba(23, 28, 19, 0.8);
}

.route-code {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: #8f9a83;
  text-transform: uppercase;
}
.route-source .route-code { color: #93a386; }

.route-source strong {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 8px;
}

.route-source small {
  margin-top: 6px;
  font-size: 10.5px;
  color: #a7b39b;
}

.route-connector {
  width: 100%;
  height: 100%;
  min-height: 150px;
  overflow: visible;
}
.route-connector path {
  stroke: #a9b394;
  stroke-width: 1.25;
  stroke-dasharray: 3 4;
}
.route-connector circle {
  fill: #8c9a76;
  stroke: var(--paper);
  stroke-width: 2;
}

.route-destinations {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.route-destinations > div {
  padding: 16px 18px;
  border: 1px solid var(--paper-line);
  border-radius: 12px;
  background: #f7f7f1;
  font-size: 13.5px;
  font-weight: 550;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease),
    box-shadow 0.3s var(--ease);
}
.route-destinations > div small {
  display: block;
  margin-top: 5px;
  font-size: 10.5px;
  font-weight: 400;
  color: #79826d;
}
.route-destinations > div.is-active {
  border-color: rgba(95, 122, 43, 0.55);
  box-shadow: 0 10px 24px -18px rgba(23, 28, 19, 0.6);
  transform: translateX(3px);
}

.route-copy .route-code { color: var(--olive); }
.route-copy h3 {
  margin: 12px 0 14px;
  font-size: clamp(22px, 2.2vw, 27px);
  font-weight: 620;
  letter-spacing: -0.015em;
  line-height: 1.4;
}
.route-copy p {
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--paper-muted);
}

.model-bottom {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px 48px;
  margin-top: clamp(40px, 5vw, 64px);
  padding-top: 28px;
  border-top: 1px solid var(--paper-line);
}
.model-bottom span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: #8a9380;
}
.model-bottom h3 {
  margin: 12px 0 8px;
  font-size: 16px;
  font-weight: 560;
}
.model-bottom p {
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--paper-muted);
}

.model-footnote {
  margin-top: 34px;
  font-size: 11px;
  line-height: 1.9;
  color: #85907a;
  max-width: 78ch;
}

/* --------------------------------------------------------------------------
   Conversation
   -------------------------------------------------------------------------- */

.conversation {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}

.conversation-copy h2 { margin-top: 24px; }
.conversation-copy .section-copy { margin: 22px 0 26px; }

.conversation-cards article {
  display: flex;
  align-items: flex-start;
  gap: clamp(20px, 2.4vw, 34px);
  padding: 28px 0;
  border-bottom: 1px solid var(--hairline);
}
.conversation-cards article:first-child { padding-top: 0; }
.conversation-cards article:last-child { border-bottom: 0; }

.big-number {
  min-width: 132px;
  font-size: clamp(42px, 4.4vw, 56px);
  line-height: 1;
  letter-spacing: -0.035em;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--acid);
  white-space: nowrap;
}
.big-number span {
  margin-left: 6px;
  font-size: 13px;
  letter-spacing: 0;
  color: var(--faint);
  font-weight: 500;
}
.big-number.symbol { font-weight: 300; color: var(--acid); }

.conversation-cards h3 {
  font-size: 16px;
  font-weight: 550;
  line-height: 1.5;
  margin-bottom: 10px;
}
.conversation-cards p {
  font-size: 12.5px;
  line-height: 1.95;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   Control
   -------------------------------------------------------------------------- */

.control-section { padding-top: 0; }

.control-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px 48px;
  align-items: end;
  padding-top: 44px;
  border-top: 1px solid var(--hairline);
}
.control-heading .eyebrow { grid-column: 2; grid-row: 1; }
.control-heading h2 { grid-column: 1; grid-row: 1 / span 2; }

.control-items {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3.5vw, 48px);
  margin-top: clamp(38px, 4.5vw, 56px);
}

.control-items article {
  border-top: 1px solid var(--hairline);
  padding-top: 18px;
}

.control-no {
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--acid);
}

.control-items h3 {
  margin: 14px 0 10px;
  font-size: 16px;
  font-weight: 550;
  line-height: 1.6;
}
.control-items p {
  font-size: 12.5px;
  line-height: 1.95;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   Start
   -------------------------------------------------------------------------- */

.start-section {
  background:
    radial-gradient(900px 500px at 90% 0%, rgba(212, 244, 124, 0.06), transparent 60%),
    linear-gradient(180deg, #121812, #0b100b);
  border-top: 1px solid var(--hairline);
  padding-block: var(--section-y);
}

.start-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}
.start-heading h2 { margin-top: 24px; }
.start-heading .button { flex-shrink: 0; margin-bottom: 6px; }

.requirements {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr;
  gap: 24px clamp(24px, 3.5vw, 48px);
  margin-top: clamp(42px, 5vw, 64px);
  padding-block: 28px;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.requirements > div > span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--faint);
}

.requirements strong {
  display: block;
  margin: 14px 0 10px;
  font-size: 17px;
  font-weight: 550;
  line-height: 1.65;
  letter-spacing: -0.005em;
}

.requirements p {
  font-size: 11.5px;
  line-height: 1.9;
  color: var(--muted);
}

.steps {
  list-style: none;
  padding: 0;
  margin: clamp(36px, 4.5vw, 52px) 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px clamp(24px, 3.5vw, 48px);
  counter-reset: step;
}

.steps li {
  display: flex;
  gap: 16px;
}

.steps b {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--acid);
  padding-top: 3px;
}

.steps h3 { font-size: 14.5px; font-weight: 550; line-height: 1.6; }
.steps p {
  margin-top: 8px;
  font-size: 11.5px;
  line-height: 1.9;
  color: var(--muted);
}

.release-note {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-radius: 14px;
  background: rgba(212, 244, 124, 0.055);
  border: 1px solid rgba(212, 244, 124, 0.14);
}

.release-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--acid);
  flex-shrink: 0;
  box-shadow: 0 0 0 3px var(--acid-dim);
}

.release-note p {
  font-size: 11px;
  line-height: 1.85;
  color: #a9b4a0;
}

.release-note a {
  margin-left: auto;
  font-size: 11px;
  white-space: nowrap;
  color: var(--acid);
  border-bottom: 1px solid rgba(212, 244, 124, 0.35);
  padding-bottom: 1px;
}

/* --------------------------------------------------------------------------
   FAQ
   -------------------------------------------------------------------------- */

.faq {
  padding-block: var(--section-y);
  max-width: 880px;
}

.faq h2 {
  font-size: clamp(26px, 2.8vw, 34px);
  margin-bottom: 28px;
  letter-spacing: -0.015em;
}

.faq details { border-bottom: 1px solid var(--hairline); }
.faq details:first-of-type { border-top: 1px solid var(--hairline); }

.faq summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  font-size: 14.5px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.18s ease;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--acid); }

.faq summary span {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--hairline-strong);
  color: var(--acid);
  font-size: 15px;
  font-weight: 300;
  flex-shrink: 0;
  transition: transform 0.28s var(--ease), background 0.2s ease;
}
.faq details[open] summary span {
  transform: rotate(45deg);
  background: rgba(212, 244, 124, 0.1);
}

.faq details p {
  max-width: 68ch;
  padding: 0 52px 24px 0;
  font-size: 13px;
  line-height: 2;
  color: var(--muted);
}
.faq details a {
  color: var(--acid);
  border-bottom: 1px solid rgba(212, 244, 124, 0.35);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

footer {
  border-top: 1px solid var(--hairline);
  padding: 40px 0 48px;
}

.footer-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px 28px;
}

footer .brand { font-size: 16px; }
footer .brand-icon { width: 24px; height: 24px; font-size: 19px; border-radius: 7px; }

.footer-top > p {
  font-size: 12.5px;
  color: var(--faint);
}

.footer-links {
  margin-left: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 12px;
  color: var(--muted);
}
.footer-links a { transition: color 0.18s ease; }
.footer-links a:hover { color: var(--acid); }

footer > small {
  display: block;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  font-size: 10.5px;
  line-height: 1.8;
  color: #6d7a68;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 56px;
    gap: 40px;
  }
  .hero-art {
    width: min(560px, 100%);
    margin-inline: auto;
    aspect-ratio: 1 / 0.92;
  }
  .phone { width: 40%; max-width: 210px; bottom: 8%; }
  .screen-back { width: 70%; }

  .section-intro,
  .model-header,
  .control-heading { grid-template-columns: 1fr; gap: 18px; }
  .section-intro .eyebrow,
  .control-heading .eyebrow { grid-column: 1; grid-row: auto; }
  .control-heading h2 { grid-column: 1; grid-row: auto; }

  .routing-panel { grid-template-columns: 1fr; gap: 36px; }
  .routing-art { max-width: 560px; }

  .conversation { grid-template-columns: 1fr; gap: 40px; }

  .feature-card h3 { font-size: 27px; }
  .micro-grid,
  .control-items { grid-template-columns: 1fr; gap: 0; }
  .micro-grid article,
  .control-items article { padding-block: 20px; }
  .micro-grid article:first-child,
  .control-items article:first-child { padding-top: 18px; }

  .requirements,
  .steps { grid-template-columns: 1fr; gap: 22px; }
  .requirements { padding-block: 24px; }
  .requirements > div { padding-block: 6px; }
  .requirements strong { margin-block: 10px 6px; }
  .requirements strong br { display: block; }
}

@media (max-width: 760px) {
  .nav-inner { height: 62px; }
  .nav nav { display: none; }
  .brand { font-size: 16.5px; }
  .nav-cta { font-size: 12px; padding: 7px 13px; }

  h1 { font-size: clamp(44px, 12.5vw, 60px); margin-block: 20px 20px; }
  .lead { font-size: 15px; }

  .hero { padding-top: 40px; gap: 34px; }
  .hero-art {
    aspect-ratio: 1 / 1.02;
    width: 100%;
    max-width: 420px;
  }
  .phone { width: 36%; max-width: 152px; bottom: 0; left: 0; }
  .phone-frame { border-radius: 26px; padding: 5px; }
  .phone-screen { border-radius: 22px; padding: 8px 9px 9px; }
  .phone-island { width: 40px; height: 12px; top: 7px; }
  .chat { padding-top: 20px; gap: 6px; }
  .bubble { font-size: 8px; padding: 6px 8px; }
  .ai-step { font-size: 7.5px; }
  .phone-input { font-size: 6.5px; padding: 6px 6px 6px 9px; }
  .mic { width: 12px; height: 12px; }

  .screen-back { width: 64%; right: 0; top: 0; }
  .screen-body { padding: 15px 14px 17px 31%; }
  .screen-heading { font-size: 16px; margin: 6px 0 12px; }
  .mini-steps { font-size: 10px; gap: 8px; }
  .screen-head { padding: 12px 12px; }
  .screen-code { font-size: 8px; letter-spacing: 0.1em; }
  .screen-foot { font-size: 8px; padding: 9px 14px 11px; }
  .art-caption { position: static; margin-top: 12px; text-align: right; font-size: 9px; }

  .hero-foot { font-size: 10.5px; }
  .hero-foot .mono { font-size: 8px; letter-spacing: 0.1em; }

  h2 { font-size: clamp(30px, 8.6vw, 38px); }
  .section-lead, .section-copy { font-size: 13.5px; }

  .feature-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature-card { padding: 24px 22px; border-radius: 22px; }
  .feature-card h3 { font-size: 25px; margin-top: 24px; }
  .feature-card > p { font-size: 12.5px; }
  .gesture-visual { height: 168px; margin-block: 24px 22px; }
  .dual-visual { height: 176px; margin-bottom: 20px; }
  .dual-plane { width: 68%; padding-left: 36%; }
  .dual-card { width: 52%; }
  .dual-plane strong, .dual-card strong { font-size: 17px; }
  .dual-code { display: none; }

  .model-switch { display: flex; width: 100%; flex-wrap: nowrap; }
  .model-bottom { grid-template-columns: 1fr; gap: 0; margin-top: 34px; padding-top: 0; }
  .model-bottom > div { padding-block: 18px; border-top: 1px solid var(--paper-line); }
  .model-bottom > div:first-child { border-top: 1px solid var(--paper-line); padding-top: 20px; }
  .model-bottom h3 { margin: 10px 0 6px; }
  .model-bottom p { font-size: 12px; }
  .model-footnote { margin-top: 24px; }
  .model-switch button { flex: 1; padding: 9px 6px; font-size: 11px; white-space: nowrap; }
  .routing-panel { padding: 22px 18px; border-radius: 22px; }
  .routing-art { grid-template-columns: 1fr; gap: 14px; }
  .route-connector { display: none; }
  .route-source { flex-direction: row; align-items: baseline; gap: 12px; flex-wrap: wrap; }
  .route-source .route-code { order: 3; margin-left: auto; }
  .route-source strong { margin-top: 0; }
  .route-source small { margin-top: 0; width: 100%; }

  .big-number { min-width: 96px; font-size: 38px; }
  .big-number.symbol { min-width: 96px; }
  .conversation-cards article { padding-block: 22px; }

  .control-heading { padding-top: 34px; }
  .control-items { margin-top: 28px; }

  .start-heading { display: block; }
  .start-heading .button { margin-top: 26px; }
  .requirements { margin-top: 34px; }
  .steps { margin-block: 30px; }
  .steps li { gap: 12px; }
  .release-note { flex-wrap: wrap; gap: 10px; }
  .release-note p { flex: 1 1 100%; order: 2; }
  .release-note a { margin-left: 0; order: 3; }

  .faq summary { font-size: 13.5px; padding-block: 18px; }
  .faq details p { padding-right: 0; font-size: 12.5px; }

  footer { padding-block: 30px 36px; }
  .footer-links { margin-left: 0; width: 100%; gap: 20px; font-size: 11px; }
  footer > small { margin-top: 20px; padding-top: 16px; }
}

@media (max-width: 390px) {
  .phone { width: 47%; }
  .actions { gap: 16px 20px; }
  .button { padding: 13px 18px; gap: 18px; font-size: 13px; }
  .text-link { font-size: 12.5px; }
}

@media (prefers-reduced-motion: reduce) {
  :root { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}