:root {
  color-scheme: light;
  --porcelain: #f2f0ea;
  --vellum: #e6e0d4;
  --ink: #111613;
  --graphite: #252924;
  --muted: #706d64;
  --line: #cfc7b8;
  --panel: #fbfaf6;
  --oxide: #7b4638;
  --mineral: #245845;
  --signal: #4f7280;
  --slate: #516f78;
  --shadow: 0 30px 90px rgba(17, 22, 19, 0.16);
  --tight-shadow: 0 18px 44px rgba(17, 22, 19, 0.12);
  --radius: 8px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --porcelain: #111613;
  --vellum: #191d19;
  --ink: #f3efe6;
  --graphite: #d9d1c2;
  --muted: #aaa294;
  --line: #3d4139;
  --panel: #171c18;
  --oxide: #d08972;
  --mineral: #7fc0a2;
  --signal: #9bb7c1;
  --slate: #83a8b2;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.38);
  --tight-shadow: 0 18px 44px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(17, 22, 19, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(17, 22, 19, 0.038) 1px, transparent 1px),
    radial-gradient(circle at 82% 8%, rgba(79, 114, 128, 0.14), transparent 28rem),
    var(--porcelain);
  background-size: 58px 58px, 58px 58px, auto, auto;
  color: var(--ink);
  font-family: Manrope, Arial, sans-serif;
  letter-spacing: 0;
  transition: background-color 220ms ease, color 220ms ease;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--oxide);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 24px;
  padding: 16px clamp(20px, 5vw, 76px);
  border-bottom: 1px solid rgba(207, 199, 184, 0.72);
  background: rgba(242, 240, 234, 0.78);
  backdrop-filter: blur(18px);
  transition: box-shadow 180ms ease, background-color 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(251, 250, 246, 0.92);
  box-shadow: 0 14px 42px rgba(17, 22, 19, 0.08);
}

.brand,
.nav-links,
.header-action,
.eyebrow,
.entry-kicker,
.status-pill,
.product-tab span,
.route-row,
.visual-toolbar,
.standard-grid span,
.route-note span {
  font-family: "JetBrains Mono", Consolas, monospace;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-logo {
  display: block;
  width: 62px;
  height: 34px;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.nav-links a,
.header-action {
  border-radius: 999px;
  padding: 10px 13px;
  transition: background-color 160ms ease, color 160ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--ink);
  background: rgba(17, 22, 19, 0.07);
}

.header-action {
  color: var(--panel);
  background: var(--ink);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.header-action:hover,
.header-action:focus-visible {
  background: var(--mineral);
}

.theme-toggle {
  display: inline-flex;
  min-height: 39px;
  cursor: pointer;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px 6px 7px;
  color: var(--ink);
  background: rgba(251, 250, 246, 0.54);
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--oxide);
  background: rgba(251, 250, 246, 0.82);
}

.theme-toggle-track {
  position: relative;
  width: 34px;
  height: 20px;
  border-radius: 999px;
  background: var(--ink);
}

.theme-toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--panel);
  transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1), background-color 180ms ease;
}

[data-theme="dark"] .theme-toggle-thumb {
  transform: translateX(14px);
}

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, 560px);
  align-items: center;
  gap: clamp(38px, 6vw, 90px);
  padding: 132px clamp(20px, 5vw, 76px) 70px;
}

.hero-copy {
  max-width: 900px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--oxide);
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
.spine-entry h2,
.product-detail-copy h3 {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  letter-spacing: 0;
}

h1 {
  max-width: 940px;
  margin-bottom: 26px;
  font-size: clamp(4.2rem, 9vw, 9.2rem);
  line-height: 0.84;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.8rem, 6vw, 6.2rem);
  line-height: 0.88;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.26rem;
  line-height: 1.2;
}

p {
  color: var(--muted);
  line-height: 1.72;
}

.hero-lede {
  max-width: 650px;
  margin-bottom: 32px;
  color: #4f4d46;
  font-size: 1.13rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0 18px;
  font-weight: 800;
  transition: transform 160ms ease, background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--panel);
  background: var(--ink);
}

.button-primary:hover,
.button-primary:focus-visible {
  border-color: var(--mineral);
  background: var(--mineral);
}

.button-secondary {
  background: rgba(251, 250, 246, 0.52);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--panel);
}

.route-spine {
  position: relative;
  min-height: 590px;
  border: 1px solid rgba(207, 199, 184, 0.94);
  border-radius: var(--radius);
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(251, 250, 246, 0.92), rgba(230, 224, 212, 0.72)),
    linear-gradient(90deg, transparent 49%, rgba(123, 70, 56, 0.2) 50%, transparent 51%);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.route-spine::before {
  position: absolute;
  inset: 18px;
  pointer-events: none;
  content: "";
  border: 1px solid rgba(17, 22, 19, 0.08);
  border-radius: calc(var(--radius) - 2px);
}

.spine-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.spine-line {
  position: absolute;
  top: 86px;
  bottom: 24px;
  left: 50%;
  width: 1px;
  background: linear-gradient(var(--oxide), rgba(123, 70, 56, 0.12));
}

.spine-entry {
  position: relative;
  width: min(84%, 390px);
  margin-top: 58px;
  border: 1px solid rgba(17, 22, 19, 0.12);
  border-radius: var(--radius);
  padding: 22px;
  background: rgba(251, 250, 246, 0.9);
  box-shadow: var(--tight-shadow);
}

.spine-entry::before {
  position: absolute;
  top: 28px;
  right: -54px;
  width: 54px;
  height: 1px;
  content: "";
  background: var(--oxide);
}

.spine-entry::after {
  position: absolute;
  top: 22px;
  right: -61px;
  width: 12px;
  height: 12px;
  content: "";
  border: 1px solid var(--oxide);
  border-radius: 50%;
  background: var(--porcelain);
}

.spine-entry-right {
  margin-left: auto;
}

.spine-entry-right::before {
  right: auto;
  left: -54px;
}

.spine-entry-right::after {
  right: auto;
  left: -61px;
}

.spine-entry.is-live {
  color: var(--panel);
  border-color: var(--mineral);
  background: linear-gradient(135deg, #143326, var(--mineral));
}

.spine-entry h2 {
  margin: 20px 0 12px;
  font-size: 3.6rem;
  line-height: 0.9;
}

.spine-entry p {
  margin-bottom: 20px;
}

.spine-entry.is-live p,
.spine-entry.is-live .entry-kicker {
  color: rgba(251, 250, 246, 0.76);
}

.spine-entry code {
  display: block;
  overflow: hidden;
  color: inherit;
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 0.78rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.entry-kicker,
.status-pill {
  display: inline-flex;
  width: max-content;
  border-radius: 999px;
  padding: 7px 9px;
  color: var(--oxide);
  background: rgba(123, 70, 56, 0.1);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.section {
  padding: 104px clamp(20px, 5vw, 76px);
}

.section-heading {
  max-width: 970px;
  margin-bottom: 46px;
}

.section-heading.compact {
  max-width: 770px;
}

.product-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.product-list {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 8px;
}

.product-tab {
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 66px;
  cursor: pointer;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(251, 250, 246, 0.76);
  color: var(--ink);
  text-align: left;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.product-tab span {
  color: var(--oxide);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.product-tab.is-active {
  color: var(--panel);
  border-color: var(--ink);
  background: var(--ink);
}

.product-detail,
.standard-grid article {
  border: 1px solid rgba(207, 199, 184, 0.96);
  border-radius: var(--radius);
  background: rgba(251, 250, 246, 0.86);
  box-shadow: var(--shadow);
}

.product-detail {
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(330px, 1fr);
  gap: 32px;
  min-height: 470px;
  padding: clamp(24px, 4vw, 44px);
}

.product-detail[hidden] {
  display: none;
}

.product-detail-copy h3 {
  margin: 26px 0 14px;
  font-size: clamp(3.1rem, 7vw, 6.4rem);
  line-height: 0.86;
}

.status-pill {
  color: var(--mineral);
  background: rgba(36, 88, 69, 0.11);
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  color: #3e413b;
  font-weight: 700;
}

.check-list li::before {
  position: absolute;
  top: 0.55em;
  left: 0;
  width: 12px;
  height: 12px;
  content: "";
  background: var(--mineral);
}

.product-visual {
  align-self: stretch;
  border: 1px solid #1c2f26;
  border-radius: var(--radius);
  padding: 14px;
  background:
    linear-gradient(90deg, rgba(251, 250, 246, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(251, 250, 246, 0.035) 1px, transparent 1px),
    #101714;
  background-size: 34px 34px;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.08);
}

.visual-toolbar {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  margin-bottom: 18px;
  color: rgba(251, 250, 246, 0.58);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
}

.visual-toolbar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--signal);
}

.visual-toolbar span:nth-child(2) {
  background: var(--oxide);
}

.visual-toolbar span:nth-child(3) {
  background: var(--slate);
}

.visual-toolbar code {
  margin-left: auto;
}

.route-row {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr) 52px;
  align-items: center;
  gap: 10px;
  min-height: 60px;
  margin-top: 10px;
  border: 1px solid rgba(251, 250, 246, 0.1);
  border-radius: var(--radius);
  padding: 0 12px;
  background: rgba(251, 250, 246, 0.058);
  color: rgba(251, 250, 246, 0.9);
  font-size: 0.82rem;
}

.route-row span {
  color: #151a16;
  border-radius: 999px;
  padding: 7px 9px;
  background: var(--signal);
  font-weight: 800;
  text-align: center;
}

.route-row code {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.route-row strong {
  color: #9fdfb8;
  text-align: right;
}

.route-note {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 14px;
  margin-top: 12px;
  border: 1px solid rgba(79, 114, 128, 0.36);
  border-radius: var(--radius);
  padding: 16px;
  background: rgba(79, 114, 128, 0.1);
}

.route-note span {
  color: var(--signal);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.route-note p {
  margin: 0;
  color: rgba(251, 250, 246, 0.72);
}

.muted-visual {
  background: #e5e0d4;
  border-color: var(--line);
}

.muted-visual .visual-toolbar {
  color: var(--muted);
}

.planning-card,
.planning-grid span {
  border-radius: var(--radius);
  background: #d1c9ba;
}

.planning-card {
  height: 88px;
  margin-top: 12px;
}

.planning-card.short {
  width: 68%;
}

.planning-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 12px;
}

.planning-grid span {
  min-height: 86px;
}

.standard {
  background:
    linear-gradient(180deg, rgba(251, 250, 246, 0.78), rgba(230, 224, 212, 0.64)),
    var(--vellum);
  border-block: 1px solid var(--line);
}

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

.standard-grid article {
  min-height: 270px;
  padding: 28px;
  box-shadow: none;
}

.standard-grid span {
  display: inline-flex;
  margin-bottom: 46px;
  color: var(--oxide);
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
}

.standard-grid p {
  margin-bottom: 0;
}

[data-theme="dark"] body {
  background:
    linear-gradient(90deg, rgba(251, 250, 246, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(251, 250, 246, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 82% 8%, rgba(155, 183, 193, 0.13), transparent 28rem),
    var(--porcelain);
}

[data-theme="dark"] .site-header {
  border-bottom-color: rgba(61, 65, 57, 0.88);
  background: rgba(17, 22, 19, 0.8);
}

[data-theme="dark"] .site-header.is-scrolled {
  background: rgba(18, 23, 20, 0.94);
  box-shadow: 0 14px 42px rgba(0, 0, 0, 0.28);
}

[data-theme="dark"] .nav-links a:hover,
[data-theme="dark"] .nav-links a:focus-visible,
[data-theme="dark"] .button-secondary:hover,
[data-theme="dark"] .button-secondary:focus-visible {
  background: rgba(251, 250, 246, 0.08);
}

[data-theme="dark"] .header-action,
[data-theme="dark"] .button-primary,
[data-theme="dark"] .product-tab.is-active {
  color: #111613;
  background: var(--signal);
  border-color: var(--signal);
}

[data-theme="dark"] .theme-toggle {
  background: rgba(251, 250, 246, 0.06);
}

[data-theme="dark"] .theme-toggle:hover,
[data-theme="dark"] .theme-toggle:focus-visible {
  background: rgba(251, 250, 246, 0.1);
}

[data-theme="dark"] .hero-lede,
[data-theme="dark"] .check-list li {
  color: #c9c1b3;
}

[data-theme="dark"] .route-spine {
  border-color: rgba(61, 65, 57, 0.96);
  background:
    linear-gradient(180deg, rgba(23, 28, 24, 0.94), rgba(25, 29, 25, 0.78)),
    linear-gradient(90deg, transparent 49%, rgba(208, 137, 114, 0.28) 50%, transparent 51%);
}

[data-theme="dark"] .route-spine::before {
  border-color: rgba(251, 250, 246, 0.08);
}

[data-theme="dark"] .spine-entry {
  border-color: rgba(251, 250, 246, 0.12);
  background: rgba(23, 28, 24, 0.9);
}

[data-theme="dark"] .spine-entry::after {
  background: var(--porcelain);
}

[data-theme="dark"] .spine-entry.is-live {
  color: #f7f2e9;
  border-color: rgba(127, 192, 162, 0.7);
  background: linear-gradient(135deg, #153326, #245845);
}

[data-theme="dark"] .entry-kicker,
[data-theme="dark"] .status-pill {
  background: rgba(208, 137, 114, 0.13);
}

[data-theme="dark"] .product-tab {
  background: rgba(23, 28, 24, 0.78);
}

[data-theme="dark"] .product-tab.is-active span {
  color: #111613;
}

[data-theme="dark"] .product-detail,
[data-theme="dark"] .standard-grid article {
  border-color: rgba(61, 65, 57, 0.96);
  background: rgba(23, 28, 24, 0.88);
}

[data-theme="dark"] .standard {
  background:
    linear-gradient(180deg, rgba(23, 28, 24, 0.84), rgba(25, 29, 25, 0.72)),
    var(--vellum);
}

[data-theme="dark"] .muted-visual {
  background: #20251f;
}

[data-theme="dark"] .planning-card,
[data-theme="dark"] .planning-grid span {
  background: #353a32;
}

.reveal-ready [data-reveal] {
  opacity: 0;
  filter: blur(10px);
  transform: translateY(44px);
  transition:
    opacity 780ms cubic-bezier(0.16, 1, 0.3, 1),
    filter 780ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 780ms cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, filter, transform;
}

.reveal-ready [data-reveal="spine"],
.reveal-ready [data-reveal="panel"] {
  transform: translateY(54px) scale(0.985);
}

.reveal-ready [data-reveal="rail"] {
  transform: translateX(-18px);
}

.reveal-ready [data-reveal="entry"] {
  transform: translateY(30px) scale(0.97);
}

.reveal-ready [data-reveal="route"] {
  filter: blur(6px);
  transform: translateX(22px);
}

.reveal-ready [data-reveal="band"] {
  transform: translateY(34px);
}

.reveal-ready [data-reveal].is-revealed {
  opacity: 1;
  filter: blur(0);
  transform: translate(0, 0) scale(1);
  will-change: auto;
}

.route-spine.is-revealed .spine-line {
  animation: drawSpine 980ms cubic-bezier(0.16, 1, 0.3, 1) 180ms both;
  transform-origin: top;
}

.product-visual [data-reveal="route"]:nth-child(2) {
  transition-delay: calc(var(--reveal-delay, 0ms) + 120ms);
}

.product-visual [data-reveal="route"]:nth-child(3) {
  transition-delay: calc(var(--reveal-delay, 0ms) + 190ms);
}

.product-visual [data-reveal="route"]:nth-child(4) {
  transition-delay: calc(var(--reveal-delay, 0ms) + 260ms);
}

.product-visual [data-reveal="route"]:nth-child(5) {
  transition-delay: calc(var(--reveal-delay, 0ms) + 330ms);
}

@keyframes drawSpine {
  from {
    opacity: 0;
    transform: scaleY(0);
  }

  to {
    opacity: 1;
    transform: scaleY(1);
  }
}

@media (max-width: 1020px) {
  .hero,
  .product-layout,
  .product-detail,
  .standard-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .product-list {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .route-spine {
    min-height: 520px;
  }
}

@media (max-width: 720px) {
  .site-header {
    grid-template-columns: 1fr auto auto;
    gap: 12px;
    padding: 14px 16px;
  }

  .nav-links {
    grid-column: 1 / -1;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .header-action {
    padding: 9px 11px;
    font-size: 0.72rem;
  }

  .hero {
    padding: 144px 16px 54px;
  }

  .section {
    padding: 74px 16px;
  }

  .route-spine,
  .product-detail {
    padding: 14px;
  }

  .route-spine {
    min-height: auto;
  }

  .spine-line,
  .spine-entry::before,
  .spine-entry::after {
    display: none;
  }

  .spine-entry,
  .spine-entry-right {
    width: 100%;
    margin: 16px 0 0;
  }

  .product-list,
  .planning-grid {
    grid-template-columns: 1fr;
  }

  .product-tab {
    min-height: 58px;
  }

  .route-row,
  .route-note {
    grid-template-columns: 1fr;
  }

  .route-row strong {
    text-align: left;
  }
}

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

  [data-reveal] {
    opacity: 1;
    filter: none;
    transform: none;
    transition: none !important;
  }
}