:root {
  color-scheme: dark;
  --bg: #0d0f10;
  --bg-deep: #080a0b;
  --surface-low: #121415;
  --surface: #17191a;
  --surface-high: #1d1f21;
  --surface-bright: #24272a;
  --text: #ffffff;
  --muted: #b9babc;
  --faint: #7f8386;
  --line: #3d4144;
  --line-soft: rgba(255, 255, 255, 0.09);
  --accent: #339af0;
  --accent-soft: rgba(51, 154, 240, 0.14);
  --code: #8e6cff;
  --code-soft: rgba(142, 108, 255, 0.14);
  --warm: #f0c68a;
  --success: #58c68d;
  --danger: #ee746b;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 32px;
  --page: min(1180px, calc(100vw - 40px));
  --header-height: 70px;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #faf8f3;
  --bg-deep: #f2eee8;
  --surface-low: #f6f2ec;
  --surface: #ffffff;
  --surface-high: #f2eee8;
  --surface-bright: #e9e3da;
  --text: #111111;
  --muted: #625f5a;
  --faint: #858079;
  --line: #d8d1c7;
  --line-soft: rgba(17, 17, 17, 0.09);
  --accent: #1976d2;
  --accent-soft: rgba(25, 118, 210, 0.1);
  --code: #6847e8;
  --code-soft: rgba(104, 71, 232, 0.1);
  --warm: #9b661f;
  --success: #237a57;
  --danger: #b3261e;
  --shadow: 0 24px 70px rgba(38, 31, 22, 0.12);
}

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

html { scroll-behavior: smooth; }
html.i18n-pending body { visibility: hidden; }

body {
  margin: 0;
  min-width: 320px;
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(circle at 72% 7%, rgba(51, 154, 240, 0.08), transparent 27rem),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  transition: background-color .25s ease, color .25s ease;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: .38;
  background-image: linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

.ambient-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .ambient-canvas { display: none; }
}

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

::selection { background: var(--accent); color: #fff; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 9px;
  background: var(--text);
  color: var(--bg);
}
.skip-link:focus { top: 14px; }

.dev-strip {
  display: flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 6px 20px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--surface-low);
  color: var(--muted);
  font-size: .77rem;
  letter-spacing: .025em;
  text-align: center;
}

.dev-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--warm);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--warm), transparent 83%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  border-bottom: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--bg), transparent 10%);
  backdrop-filter: blur(18px);
}

.nav-shell {
  width: var(--page);
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: -.025em;
}

.brand-mark { position: relative; width: 32px; height: 32px; }
.brand-mark img { width: 100%; height: 100%; object-fit: contain; }
.brand-mark .mark-light { display: none; }
html[data-theme="light"] .brand-mark .mark-dark { display: none; }
html[data-theme="light"] .brand-mark .mark-light { display: block; }

.main-nav { display: flex; align-items: center; gap: 7px; }
.main-nav a {
  padding: 8px 11px;
  border-radius: 9px;
  color: var(--muted);
  font-size: .88rem;
  transition: color .2s ease, background .2s ease;
}
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--text); background: var(--surface-high); }

.nav-actions { display: flex; align-items: center; gap: 8px; }
.language-menu { position: relative; }
.language-menu summary {
  min-width: 102px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border: 1px solid var(--line-soft);
  border-radius: 11px;
  color: var(--muted);
  background: var(--surface-low);
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}
.language-menu summary::-webkit-details-marker { display: none; }
.language-menu summary::before { display: none; }
.language-options {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 30;
  width: 154px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.language-options button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 11px;
  border: 0;
  border-radius: 9px;
  color: var(--text);
  background: transparent;
  font: inherit;
  font-size: .82rem;
  text-align: left;
  cursor: pointer;
}
.language-options button:hover, .language-options button[aria-checked="true"] { color: var(--text); background: transparent; }
.language-options button[aria-checked="true"] span:last-child { color: var(--accent); }
.icon-button {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line-soft);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.icon-button:hover { transform: translateY(-2px); border-color: var(--line); background: var(--surface-high); }
.menu-toggle { display: none; }

.container { width: var(--page); margin: 0 auto; }
.section { padding: 112px 0; }
.section-compact { padding: 76px 0; }
.section-rule { border-top: 1px solid var(--line-soft); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 20px;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: currentColor; }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.045em; }
h1 { max-width: 900px; margin-bottom: 26px; font-size: clamp(3.3rem, 8vw, 7.3rem); font-weight: 610; }
h2 { margin-bottom: 24px; font-size: clamp(2.35rem, 5.2vw, 4.9rem); font-weight: 600; }
h3 { margin-bottom: 12px; font-size: 1.35rem; font-weight: 620; letter-spacing: -.03em; }
p { color: var(--muted); }

.lede { max-width: 720px; font-size: clamp(1.1rem, 1.8vw, 1.34rem); line-height: 1.65; }
.measure { max-width: 670px; }
.gradient-text { background: linear-gradient(115deg, var(--text) 10%, var(--accent) 95%); -webkit-background-clip: text; background-clip: text; color: transparent; }

.hero { min-height: calc(100svh - var(--header-height) - 34px); padding: 72px 0 48px; display: grid; align-items: center; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(370px, .92fr); gap: 56px; align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.hero h1 { font-size: clamp(3.35rem, 6.6vw, 6.4rem); }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 18px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  font-size: .9rem;
  font-weight: 650;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.button:hover { transform: translateY(-2px); border-color: var(--line); background: var(--surface-high); }
.button-primary { border-color: var(--text); background: var(--text); color: var(--bg); }
.button-primary:hover { background: color-mix(in srgb, var(--text), var(--bg) 10%); }
.arrow { font-size: 1.1em; transition: transform .2s ease; }
.button:hover .arrow, .text-link:hover .arrow { transform: translateX(3px); }

.hero-meta { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 32px; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 10px;
  border: 1px solid var(--line-soft);
  border-radius: 99px;
  color: var(--faint);
  background: color-mix(in srgb, var(--surface), transparent 18%);
  font-size: .73rem;
  font-weight: 650;
  letter-spacing: .035em;
  text-transform: uppercase;
}
.pill::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }

.system-visual { position: relative; min-height: 550px; display: grid; place-items: center; isolation: isolate; }
.system-visual::before, .system-visual::after {
  content: "";
  position: absolute;
  inset: 12%;
  z-index: -2;
  border: 1px solid var(--line-soft);
  border-radius: 50%;
  animation: slow-spin 34s linear infinite;
}
.system-visual::after { inset: 25%; border-style: dashed; animation-direction: reverse; animation-duration: 25s; }
.core-glow { position: absolute; width: 46%; aspect-ratio: 1; border-radius: 50%; background: var(--accent); opacity: .12; filter: blur(64px); }
.lottie-logo { width: 390px; height: 390px; filter: drop-shadow(0 28px 36px rgba(0,0,0,.2)); transform: translateY(-66px); }
.lottie-fallback { width: 215px; height: 215px; }
.orbit-node {
  position: absolute;
  min-width: 122px;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--accent), var(--line) 50%);
  border-radius: 13px;
  background: color-mix(in srgb, var(--surface), transparent 4%);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.orbit-node strong { display: block; font-size: .83rem; }
.orbit-node span { color: var(--faint); font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; }
.node-chat { top: 18%; left: 2%; }
.node-code { right: -1%; top: 11%; }
.node-server { left: 4%; bottom: 10%; border-color: color-mix(in srgb, var(--accent), var(--line) 50%); }
.node-bridge { right: 2%; bottom: 17%; }

@keyframes slow-spin { to { transform: rotate(360deg); } }

.split-heading { display: grid; grid-template-columns: .72fr 1.28fr; gap: 60px; align-items: start; margin-bottom: 58px; }
.split-heading .eyebrow { margin-top: 10px; }
.split-heading h2 { max-width: 820px; }

.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.three-col { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.four-col { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }

.card {
  position: relative;
  min-height: 270px;
  padding: 28px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--surface), color-mix(in srgb, var(--surface-low), transparent 14%));
  transition: transform .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--line); }
.card-large { min-height: 440px; padding: 38px; }
.card-number { display: block; margin-bottom: 62px; color: var(--faint); font-size: .73rem; letter-spacing: .12em; }
.card p { max-width: 520px; }
.card-accent::after {
  content: "";
  position: absolute;
  width: 190px;
  aspect-ratio: 1;
  right: -80px;
  top: -95px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .1;
  filter: blur(34px);
}
.card-code::after { background: var(--code); }
.product-label { display: flex; align-items: center; gap: 9px; margin-bottom: 56px; color: var(--faint); font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; }
.product-label i { width: 9px; height: 9px; border-radius: 3px; background: var(--accent); box-shadow: 0 0 20px var(--accent); }
.card-code .product-label i { background: var(--code); box-shadow: 0 0 20px var(--code); }

.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; color: var(--text); font-size: .88rem; font-weight: 650; }
.feature-list { margin: 22px 0 0; padding: 0; list-style: none; }
.feature-list li { display: flex; gap: 10px; padding: 9px 0; border-top: 1px solid var(--line-soft); color: var(--muted); font-size: .91rem; }
.feature-list li::before { content: "↳"; color: var(--accent); }
.card-code .feature-list li::before { color: var(--code); }

.architecture {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  gap: 18px;
}
.architecture-block { display: flex; flex-direction: column; padding: 32px; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--surface); }
.architecture-block small { display: block; margin-bottom: 36px; color: var(--faint); text-transform: uppercase; letter-spacing: .1em; }
.architecture-block .text-link { margin-top: auto; padding-top: 18px; }
.architecture-connector { width: 54px; display: grid; place-items: center; color: var(--accent); }
.architecture-connector::before { content: ""; width: 100%; height: 1px; background: currentColor; }

.capability-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.capability { grid-column: span 4; min-height: 210px; padding: 24px; border: 1px solid var(--line-soft); border-radius: var(--radius-sm); background: var(--surface-low); }
.capability.wide { grid-column: span 8; }
.capability .mini-icon { width: 36px; height: 36px; margin-bottom: 42px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 10px; color: var(--accent); }
.capability p { margin-bottom: 0; font-size: .9rem; }

.manifesto { position: relative; padding: clamp(40px, 7vw, 90px); border: 1px solid var(--line-soft); border-radius: var(--radius-lg); background: var(--surface-low); overflow: hidden; }
.manifesto::after { content: ""; position: absolute; inset: auto -10% -65% 30%; height: 420px; border-radius: 50%; background: var(--accent); opacity: .08; filter: blur(50px); }
.manifesto h2 { max-width: 950px; position: relative; z-index: 1; }
.manifesto p { max-width: 680px; position: relative; z-index: 1; }

.development-note { display: grid; grid-template-columns: auto 1fr; gap: 28px; padding: 32px; border: 1px solid color-mix(in srgb, var(--warm), var(--line) 60%); border-radius: var(--radius); background: color-mix(in srgb, var(--warm), transparent 94%); }
.development-note .note-icon { width: 46px; height: 46px; display: grid; place-items: center; border: 1px solid color-mix(in srgb, var(--warm), transparent 55%); border-radius: 50%; color: var(--warm); }
.development-note h3 { margin-bottom: 8px; }
.development-note p { margin-bottom: 0; }

.page-hero { padding: 116px 0 82px; border-bottom: 1px solid var(--line-soft); }
.page-hero h1 { font-size: clamp(3.2rem, 7vw, 6.4rem); }
.page-hero-grid { display: grid; grid-template-columns: 1.18fr .82fr; gap: 60px; align-items: end; }
.page-badge { justify-self: end; width: min(360px, 100%); padding: 26px; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--surface); }
.page-badge small { color: var(--faint); text-transform: uppercase; letter-spacing: .1em; }
.page-badge strong { display: block; margin-top: 28px; font-size: 1.3rem; line-height: 1.3; }

/* Product storytelling */
.journey-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(310px, .92fr);
  gap: 18px;
}
.journey-main, .journey-side, .control-stage, .isolation-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--surface-low);
}
.journey-main { padding: clamp(32px, 3.5vw, 46px); }
.journey-main::after, .control-stage::after {
  content: "";
  position: absolute;
  width: 340px;
  aspect-ratio: 1;
  right: -160px;
  bottom: -210px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .09;
  filter: blur(48px);
}
.journey-main h3, .resource-journey h3 { font-size: clamp(1.8rem, 3vw, 2.75rem); line-height: 1.04; letter-spacing: -.045em; }
.journey-main h3 { max-width: 650px; }
.journey-main > p { max-width: 660px; font-size: 1.05rem; }
.journey-flow { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 52px; }
.journey-flow::before { content: ""; position: absolute; top: 0; left: 12.5%; right: 12.5%; height: 1px; background: var(--line); }
.journey-point { position: relative; padding: 22px 8px 0; color: var(--muted); font-size: .82rem; text-align: center; }
.journey-point::before { content: ""; position: absolute; top: -4px; left: 50%; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 6px var(--accent-soft); transform: translateX(-50%); }
.journey-point strong { display: block; margin-bottom: 5px; color: var(--text); font-size: .93rem; }
.journey-side { display: grid; align-content: space-between; gap: 36px; padding: clamp(32px, 3.5vw, 46px); background: var(--surface); }
.journey-side blockquote { margin: 0; color: var(--text); font-size: clamp(1.35rem, 2.2vw, 2rem); line-height: 1.35; letter-spacing: -.035em; }
.journey-side p { margin-bottom: 0; }
.resource-journey { grid-template-rows: auto 1fr auto auto; align-content: stretch; gap: 22px; }
.journey-main .eyebrow, .resource-journey .eyebrow { min-height: 1.5em; margin-bottom: 12px; font-size: .78rem; }
.resource-journey h3 { max-width: 460px; margin-bottom: 14px; }
.resource-journey > div:first-child > p:last-child { max-width: 520px; }
.resource-duo { display: grid; grid-template-columns: minmax(0, 1fr) 54px minmax(0, 1fr); align-items: stretch; align-self: center; width: 100%; }
.resource-mode { display: grid; align-content: center; justify-items: center; min-width: 0; padding: 18px 10px; border: 1px solid var(--line-soft); border-radius: 18px; background: color-mix(in srgb, var(--surface-low) 88%, transparent); text-align: center; }
.resource-mode > span { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 18px; border: 1px solid var(--line); border-radius: 12px; color: var(--accent); background: var(--surface-raised); font-size: 1rem; font-weight: 800; }
.resource-mode strong, .resource-mode small { display: block; }
.resource-mode strong { max-width: 150px; color: var(--text); font-size: .91rem; line-height: 1.25; }
.resource-mode small { max-width: 150px; margin-top: 8px; color: var(--muted); font-size: .72rem; line-height: 1.4; }
.resource-cycle { position: relative; z-index: 1; display: grid; place-items: center; align-self: center; width: 54px; color: var(--accent); }
.resource-cycle::before, .resource-cycle::after { display: none; }
.resource-cycle span { font-size: 1.65rem; line-height: 1; }
.resource-caption { display: grid; grid-template-columns: 10px 1fr; gap: 10px; align-items: start; padding-top: 16px; border-top: 1px solid var(--line-soft); }
.resource-caption > span { width: 8px; height: 8px; margin-top: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px var(--accent-soft); }
.resource-caption p { color: var(--text-soft); font-size: .88rem; }
.hardware-note { display: block; color: var(--muted); font-size: .71rem; line-height: 1.5; }

@media (min-width: 981px) {
  .journey-flow { margin-top: 84px; }
}

.story-list { display: grid; gap: 1px; border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; background: var(--line-soft); }
.story-row { display: grid; grid-template-columns: 72px minmax(210px, .7fr) 1.3fr; gap: 24px; align-items: start; padding: 30px; background: var(--surface-low); }
.story-symbol { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 12px; color: var(--accent); font-size: 1.1rem; }
.story-row h3 { margin: 7px 0 0; }
.story-row p { margin: 4px 0 0; }

.creation-spectrum { display: grid; grid-template-columns: 1.25fr repeat(4, minmax(0, .75fr)); gap: 1px; overflow: hidden; border: 1px solid var(--line-soft); border-radius: var(--radius-lg); background: var(--line-soft); }
.creation-intro, .creation-type { min-height: 260px; padding: 28px; background: var(--surface-low); }
.creation-intro { display: flex; flex-direction: column; justify-content: space-between; }
.creation-intro h3 { max-width: 340px; font-size: clamp(1.7rem, 3vw, 2.6rem); }
.creation-type { display: flex; flex-direction: column; transition: background .2s ease; }
.creation-type:hover { background: var(--surface-high); }
.creation-type span { margin-bottom: auto; color: var(--accent); font-size: 1.4rem; }
.creation-type strong { font-size: 1.05rem; }
.creation-type small { min-height: 5.8em; margin-top: 8px; color: var(--faint); line-height: 1.45; }

.workflow-rail { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line-soft); border-radius: var(--radius-lg); overflow: hidden; }
.workflow-step { position: relative; min-height: 360px; padding: 30px; border-right: 1px solid var(--line-soft); background: var(--surface-low); }
.workflow-step:last-child { border-right: 0; }
.workflow-step::before { content: ""; position: absolute; top: 69px; left: 0; right: 0; height: 1px; background: var(--line); }
.workflow-step:first-child::before { left: 30px; }
.workflow-step:last-child::before { right: 30px; }
.workflow-dot { position: relative; z-index: 1; width: 14px; height: 14px; margin: 33px 0 68px; border: 4px solid var(--surface-low); border-radius: 50%; background: var(--code); box-shadow: 0 0 0 1px var(--code); }
.workflow-step > span { color: var(--code); font-size: .72rem; font-weight: 700; letter-spacing: .12em; }
.workflow-step h3 { min-height: 2.35em; }
.workflow-step p { min-height: 7.2em; font-size: .9rem; }
.workflow-step ul { margin: 18px 0 0; padding: 0; list-style: none; }
.workflow-step li { padding: 6px 0; color: var(--faint); font-size: .78rem; }
.workflow-step li::before { content: "↳ "; color: var(--code); }

.code-proof-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 18px; }
.code-proof-main, .code-proof-card { padding: 34px; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--surface-low); }
.code-proof-main { min-height: 420px; display: flex; flex-direction: column; }
.code-proof-main h3 { max-width: 620px; font-size: clamp(2rem, 4vw, 3.4rem); }
.code-proof-main .proof-lines { margin-top: auto; }
.proof-line { display: grid; grid-template-columns: 24px 1fr auto; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line-soft); color: var(--muted); font-size: .84rem; }
.proof-line i { width: 8px; height: 8px; margin-top: 7px; border-radius: 50%; background: var(--success); }
.proof-line span:last-child { color: var(--faint); }
.code-proof-stack { display: grid; gap: 18px; }
.code-proof-card { min-height: 201px; }
.code-proof-card b { display: block; margin-bottom: 26px; color: var(--code); font-size: .72rem; letter-spacing: .11em; text-transform: uppercase; }

.control-stage { display: grid; grid-template-columns: .9fr 1.1fr; min-height: 520px; }
.control-copy { position: relative; z-index: 1; padding: clamp(32px, 5vw, 58px); }
.control-copy h3 { font-size: clamp(2rem, 4vw, 3.65rem); }
.control-copy p { max-width: 520px; }
.system-map { align-self: center; margin: 34px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: color-mix(in srgb, var(--bg-deep), transparent 7%); box-shadow: var(--shadow); }
.system-map-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 4px 17px; }
.system-map-head span { color: var(--text); font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.system-map-head small { color: var(--faint); font-size: .67rem; letter-spacing: .1em; text-transform: uppercase; }
.system-layer { display: grid; grid-template-columns: 36px 1fr; gap: 14px; align-items: center; padding: 14px 16px; border: 1px solid var(--line-soft); border-radius: 12px; background: var(--surface-low); }
.system-layer-core { border-color: color-mix(in srgb, var(--accent), var(--line) 45%); background: var(--accent-soft); }
.layer-number { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px; background: var(--surface-high); color: var(--accent); font-size: .68rem; font-weight: 700; }
.system-layer small { display: block; color: var(--faint); font-size: .67rem; letter-spacing: .08em; text-transform: uppercase; }
.system-layer strong { display: block; margin-top: 2px; font-size: .9rem; line-height: 1.35; }
.system-link { height: 20px; display: grid; place-items: center; color: var(--accent); font-size: .75rem; }

.provider-panel { display: grid; grid-template-columns: .78fr 1.22fr; gap: 44px; align-items: center; padding: clamp(32px, 5vw, 58px); border: 1px solid var(--line-soft); border-radius: var(--radius-lg); background: var(--surface-low); }
.provider-panel h2 { font-size: clamp(2.2rem, 4.5vw, 4.2rem); }
.provider-logos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.provider-logo { min-height: 116px; display: grid; place-items: center; gap: 8px; padding: 20px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--surface); color: var(--muted); font-size: .72rem; }
.provider-logo img { width: 58px; height: 42px; object-fit: contain; filter: saturate(.85); }
.provider-logo.provider-text strong { font-size: 1.1rem; color: var(--text); letter-spacing: -.03em; }
.provider-note { margin-top: 16px; color: var(--faint); font-size: .72rem; }

.integration-grid { align-items: stretch; }
.integration-card { min-height: 300px; display: flex; flex-direction: column; }
.integration-card-head { min-height: 58px; display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 44px; }
.integration-card-head .card-number { margin: 0; padding-top: 7px; }
.integration-logo { width: 52px; height: 46px; object-fit: contain; opacity: .82; }
.integration-symbol { width: 46px; height: 46px; display: grid; place-items: center; border: 1px solid var(--line-soft); border-radius: 13px; background: var(--surface-high); color: var(--accent); font-size: 1.35rem; }
.integration-card p { margin-bottom: 24px; }
.integration-card .status-tag { width: fit-content; margin-top: auto; }
.third-party-note { margin: 22px 4px 0; padding-top: 20px; border-top: 1px solid var(--line-soft); color: var(--faint); font-size: .73rem; line-height: 1.65; }

.isolation-panel { display: grid; grid-template-columns: .85fr 1.15fr; gap: 42px; padding: clamp(32px, 5vw, 58px); }
.isolation-panel h2 { font-size: clamp(2.2rem, 4.5vw, 4.2rem); }
.user-spaces { display: grid; gap: 12px; align-content: center; }
.user-space { display: grid; grid-template-columns: auto 1fr; gap: 15px; align-items: center; padding: 18px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--surface); }
.user-avatar { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: var(--accent-soft); color: var(--accent); font-weight: 700; }
.user-space strong { display: block; }
.user-space small { color: var(--faint); }
.isolation-tags { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 7px; margin-top: 6px; }
.isolation-tags span { padding: 5px 8px; border-radius: 7px; background: var(--surface-high); color: var(--muted); font-size: .68rem; }

.independent-panel { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(34px, 6vw, 76px); padding: clamp(38px, 6vw, 72px); overflow: hidden; border: 1px solid var(--line-soft); border-radius: var(--radius-lg); background: var(--surface-low); }
.independent-copy h2 { max-width: 780px; font-size: clamp(2.45rem, 5vw, 4.8rem); }
.independent-copy > p { max-width: 720px; }
.bridge-benefits { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 34px; }
.bridge-benefits div { padding: 18px; border: 1px solid var(--line-soft); border-radius: 13px; background: var(--surface); }
.bridge-benefits strong, .bridge-benefits span { display: block; }
.bridge-benefits strong { margin-bottom: 7px; font-size: .92rem; }
.bridge-benefits span { color: var(--faint); font-size: .78rem; line-height: 1.5; }
.bridge-route { align-self: center; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--bg-deep); box-shadow: var(--shadow); }
.bridge-route-head { display: flex; justify-content: space-between; gap: 16px; padding: 0 3px 17px; }
.bridge-route-head span { color: var(--text); font-size: .8rem; font-weight: 700; }
.bridge-route-head small { color: var(--accent); font-size: .66rem; letter-spacing: .08em; text-transform: uppercase; }
.bridge-node { display: grid; grid-template-columns: 32px 1fr; gap: 13px; padding: 16px; border: 1px solid var(--line-soft); border-radius: 12px; background: var(--surface-low); }
.bridge-node-core { border-color: color-mix(in srgb, var(--accent), var(--line) 45%); background: var(--accent-soft); }
.bridge-node b { width: 29px; height: 29px; display: grid; place-items: center; border-radius: 8px; background: var(--surface-high); color: var(--accent); font-size: .66rem; }
.bridge-node small, .bridge-node strong { display: block; }
.bridge-node small { color: var(--faint); font-size: .65rem; letter-spacing: .08em; text-transform: uppercase; }
.bridge-node strong { margin: 2px 0 3px; font-size: .95rem; }
.bridge-node p { margin: 0; font-size: .75rem; line-height: 1.45; }
.bridge-arrow { height: 20px; display: grid; place-items: center; color: var(--accent); font-size: .75rem; }
.bridge-example { margin: 16px 3px 0; padding-top: 15px; border-top: 1px solid var(--line-soft); color: var(--faint); font-size: .72rem; line-height: 1.55; }

.status-list { display: grid; gap: 12px; }
.status-row { display: grid; grid-template-columns: 1.1fr .7fr 1.6fr; gap: 20px; align-items: center; padding: 20px 22px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--surface-low); }
.status-row p { margin: 0; font-size: .86rem; }
.status-tag { justify-self: start; padding: 5px 9px; border-radius: 99px; font-size: .7rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; background: var(--accent-soft); color: var(--accent); }
.status-tag.experimental { color: var(--warm); background: color-mix(in srgb, var(--warm), transparent 88%); }
.status-tag.development { color: var(--code); background: var(--code-soft); }

.site-footer { padding: 54px 0 30px; border-top: 1px solid var(--line-soft); background: var(--bg-deep); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 38px; }
.footer-brand p { max-width: 330px; font-size: .85rem; }
.footer-col h3 { margin-bottom: 16px; font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); }
.footer-col a { display: block; width: fit-content; margin: 9px 0; color: var(--muted); font-size: .86rem; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 50px; padding-top: 22px; border-top: 1px solid var(--line-soft); color: var(--faint); font-size: .74rem; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .main-nav {
    position: fixed;
    top: calc(34px + var(--header-height));
    left: 20px;
    right: 20px;
    display: none;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
    box-shadow: var(--shadow);
  }
  .main-nav.open { display: grid; }
  .main-nav a { padding: 12px; }
  .menu-toggle { display: inline-grid; }
  .hero { min-height: auto; }
  .hero-grid, .page-hero-grid { grid-template-columns: 1fr; }
  .system-visual { min-height: 480px; max-width: 620px; width: 100%; margin: 0 auto; }
  .split-heading { grid-template-columns: 1fr; gap: 12px; }
  .split-heading .eyebrow { margin-top: 0; }
  .three-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .four-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .capability { grid-column: span 6; }
  .capability.wide { grid-column: span 12; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .page-badge { justify-self: start; }
  .journey-shell, .control-stage, .provider-panel, .isolation-panel, .code-proof-grid, .independent-panel { grid-template-columns: 1fr; }
  .creation-spectrum { grid-template-columns: repeat(2, 1fr); }
  .creation-intro { grid-column: 1 / -1; }
  .workflow-rail { grid-template-columns: repeat(2, 1fr); }
  .workflow-step:nth-child(2) { border-right: 0; }
  .workflow-step:nth-child(-n+2) { border-bottom: 1px solid var(--line-soft); }
}

@media (max-width: 680px) {
  :root { --page: min(100% - 28px, 1180px); }
  .dev-strip { min-height: 42px; font-size: .68rem; }
  .site-header { top: 0; }
  .section { padding: 82px 0; }
  .section-compact { padding: 58px 0; }
  .hero { padding-top: 56px; }
  .hero h1, .page-hero h1 { font-size: clamp(2.8rem, 15vw, 4.8rem); }
  .hero-actions .button { width: 100%; }
  .language-menu summary { min-width: 42px; width: 42px; padding: 0; }
  .language-menu summary > span:first-child { display: none; }
  .language-menu summary::before { content: "EN"; display: inline; font-size: .7rem; }
  html[lang="es"] .language-menu summary::before { content: "ES"; }
  .system-visual { min-height: 390px; transform: scale(.92); }
  .lottie-logo { width: 280px; height: 280px; transform: translateY(-48px); }
  .orbit-node { min-width: 106px; padding: 9px 11px; }
  .orbit-node span { font-size: .6rem; letter-spacing: .06em; white-space: nowrap; }
  .node-chat { left: 0; top: 18%; }
  .node-code { right: 0; top: 11%; max-width: calc(50% - 4px); }
  .node-server { left: 0; bottom: 10%; }
  .node-bridge { right: 0; bottom: 17%; max-width: calc(50% - 4px); }
  .two-col, .three-col, .four-col { grid-template-columns: 1fr; }
  .card-large { min-height: 390px; padding: 28px; }
  .architecture { grid-template-columns: 1fr; }
  .architecture-connector { width: 100%; height: 30px; }
  .architecture-connector::before { width: 1px; height: 100%; }
  .capability, .capability.wide { grid-column: span 12; }
  .development-note { grid-template-columns: 1fr; }
  .status-row { grid-template-columns: 1fr; gap: 8px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
  .journey-flow { grid-template-columns: repeat(2, 1fr); gap: 24px 8px; border-top: 0; }
  .journey-flow::before { display: none; }
  .journey-point { border-top: 1px solid var(--line); }
  .resource-duo { grid-template-columns: minmax(0, 1fr) 44px minmax(0, 1fr); }
  .resource-cycle { width: 44px; }
  .resource-mode { padding: 14px 7px; border-radius: 15px; }
  .resource-mode > span { margin-bottom: 12px; }
  .story-row { grid-template-columns: 48px 1fr; gap: 14px; padding: 24px; }
  .story-row p { grid-column: 2; }
  .creation-spectrum, .provider-logos { grid-template-columns: 1fr 1fr; }
  .creation-type { min-height: 190px; }
  .workflow-rail { grid-template-columns: 1fr; }
  .workflow-step { min-height: 300px; border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .workflow-step:last-child { border-bottom: 0; }
  .workflow-step:nth-child(3) { border-bottom: 1px solid var(--line-soft); }
  .system-map { margin: 0 20px 20px; }
  .workflow-step h3, .workflow-step p { min-height: auto; }
  .provider-logos { margin-top: 6px; }
  .bridge-benefits { grid-template-columns: 1fr; }
  .bridge-route-head { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}