/*
 * Lumen website styles.
 *
 * A small standards reset is followed by project-owned CSS. The published
 * page has no runtime or framework dependency.
 */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border: 0 solid;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: inherit;
  font-weight: inherit;
}

ol,
ul {
  list-style: none;
}

img {
  height: auto;
  vertical-align: middle;
}

summary {
  display: list-item;
}

/* Lumen */

:root {
  --paper: #f7f4ee;
  --paper-deep: #eee9df;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-solid: #fffefa;
  --ink: #171b24;
  --muted: #646b78;
  --line: rgba(23, 27, 36, 0.12);
  --line-strong: rgba(23, 27, 36, 0.2);
  --blue: #087fff;
  --blue-deep: #075ed1;
  --cyan: #38d6f5;
  --green: #0f724a;
  --shadow: 0 28px 90px rgba(27, 45, 76, 0.16);
  --radius: 24px;
  --shell: min(1180px, calc(100vw - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 12% -8%, rgba(255, 224, 166, 0.28), transparent 27rem),
    var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

img[src="/lumen-icon.png"] {
  transform: scale(1.24);
}

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

:focus-visible {
  outline: 3px solid #005bbb;
  outline-offset: 2px;
  box-shadow: 0 0 0 6px white;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--ink);
  color: white;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 40;
  top: 0;
  border-bottom: 1px solid rgba(23, 27, 36, 0.08);
  background: rgba(247, 244, 238, 0.78);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
}

.nav-shell {
  width: var(--shell);
  min-height: 74px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand img {
  filter: drop-shadow(0 5px 9px rgba(13, 99, 190, 0.16));
}

.site-header .desktop-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 28px;
  color: #414854;
  font-size: 14px;
  font-weight: 550;
}

.site-header .desktop-nav a,
.footer-links a,
.text-link {
  transition: color 160ms ease;
}

.site-header .desktop-nav a:hover,
.footer-links a:hover,
.text-link:hover {
  color: var(--blue-deep);
}

.button {
  min-height: 48px;
  padding: 0 19px;
  border: 1px solid transparent;
  border-radius: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 650;
  line-height: 1;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-small {
  min-height: 44px;
  padding-inline: 15px;
  border-color: rgba(8, 127, 255, 0.18);
  background: rgba(255, 255, 255, 0.7);
  color: var(--blue-deep);
  font-size: 14px;
}

.button-primary {
  background: linear-gradient(135deg, #0071e3, var(--blue-deep));
  color: white;
  box-shadow: 0 14px 30px rgba(8, 110, 225, 0.24), inset 0 1px rgba(255, 255, 255, 0.32);
}

.button-primary:hover {
  box-shadow: 0 17px 36px rgba(8, 110, 225, 0.32), inset 0 1px rgba(255, 255, 255, 0.32);
}

.button-primary:focus-visible {
  outline-color: white;
  box-shadow: 0 0 0 6px #005bbb;
}

.button-secondary {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.48);
  color: #303641;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 112px 0 118px;
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -2;
  top: 6%;
  right: -13rem;
  width: 38rem;
  height: 38rem;
  border: 1px solid rgba(8, 127, 255, 0.07);
  border-radius: 30%;
  transform: rotate(28deg);
  box-shadow: -7rem 8rem 0 -1px rgba(8, 127, 255, 0.035), -14rem 16rem 0 -1px rgba(8, 127, 255, 0.025);
}

.hero-glow {
  position: absolute;
  z-index: -1;
  inset: -15% -10% auto 38%;
  height: 720px;
  background:
    radial-gradient(circle at 54% 45%, rgba(54, 214, 245, 0.23), transparent 19%),
    radial-gradient(circle at 63% 42%, rgba(8, 127, 255, 0.2), transparent 32%);
  filter: blur(9px);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(600px, 1.14fr);
  align-items: center;
  gap: 64px;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1 {
  max-width: 680px;
  margin: 0;
  font-size: clamp(3.4rem, 6vw, 5.8rem);
  font-weight: 730;
  letter-spacing: -0.066em;
  line-height: 0.98;
}

.hero-intro {
  max-width: 650px;
  margin: 28px 0 0;
  color: #4f5764;
  font-size: 19px;
  line-height: 1.6;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.download-meta {
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

.trust-list {
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
}

.trust-list li {
  padding: 7px 8px;
  border: 1px solid rgba(22, 133, 88, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
  color: #25654c;
  font-size: 12px;
  font-weight: 650;
}

.trust-list li::before {
  content: "✓";
  margin-right: 6px;
  color: var(--green);
}

.product-stage {
  position: relative;
  margin: 0;
  min-width: 0;
  transform: perspective(1200px) rotateY(-2deg) rotateX(1deg);
}

.prism-orbit {
  position: absolute;
  z-index: -1;
  inset: -20% -12% -30%;
  background: conic-gradient(from 230deg at 50% 50%, rgba(8, 127, 255, 0.08), rgba(56, 214, 245, 0.22), rgba(255, 255, 255, 0), rgba(8, 127, 255, 0.08));
  clip-path: polygon(50% 0, 100% 84%, 2% 88%);
  filter: blur(42px);
}

.app-window {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.84);
  border-radius: 22px;
  background: rgba(250, 251, 252, 0.9);
  box-shadow: var(--shadow), 0 0 0 1px rgba(20, 32, 50, 0.08);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.window-bar {
  height: 46px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(23, 27, 36, 0.1);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  background: linear-gradient(#f9fafb, #eef0f3);
  color: #68707c;
  font-size: 11px;
}

.traffic-lights {
  display: flex;
  gap: 7px;
}

.traffic-lights span {
  width: 11px;
  height: 11px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 50%;
  background: #ff6059;
}

.traffic-lights span:nth-child(2) { background: #ffbd2e; }
.traffic-lights span:nth-child(3) { background: #28c941; }

.window-title {
  font-weight: 650;
}

.window-count {
  justify-self: end;
  color: #0f724a;
  font-weight: 650;
}

.window-body {
  min-height: 470px;
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
}

.window-body aside {
  padding: 18px 12px;
  border-right: 1px solid rgba(23, 27, 36, 0.1);
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: rgba(226, 231, 239, 0.68);
}

.sidebar-brand {
  margin: 0 7px 15px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.window-body aside > span {
  padding: 7px 8px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 7px;
  color: #58616e;
  font-size: 9px;
  white-space: nowrap;
}

.window-body aside > span i {
  width: 8px;
  height: 8px;
  border: 1px solid rgba(75, 86, 101, 0.4);
  border-radius: 2px;
}

.window-body aside > span.active {
  background: rgba(8, 127, 255, 0.13);
  color: #145ba5;
  font-weight: 700;
}

.window-body aside > span.active i {
  border-color: var(--blue);
  background: var(--blue);
}

.results-panel {
  min-width: 0;
  padding: 26px 24px 24px;
  background: rgba(255, 255, 255, 0.88);
}

.results-heading {
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.panel-kicker,
.field-label {
  display: block;
  color: var(--muted);
  font-size: 8px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.results-heading h2 {
  margin: 4px 0 0;
  font-size: 18px;
  letter-spacing: -0.025em;
}

.mock-action {
  padding: 8px 10px;
  border-radius: 7px;
  background: var(--blue-deep);
  color: white;
  font-size: 9px;
  font-weight: 650;
}

.result-list {
  overflow: hidden;
  border: 1px solid rgba(23, 27, 36, 0.1);
  border-radius: 12px;
  background: white;
}

.result-row {
  padding: 16px 15px;
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
}

.result-row + .result-row {
  border-top: 1px solid rgba(23, 27, 36, 0.08);
}

.approval {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #e2f6ed;
  color: var(--green);
  font-size: 10px;
  font-weight: 800;
}

.result-row code,
.rename-example code,
.checksum code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.result-row code {
  max-width: 100%;
  margin-top: 3px;
  display: block;
  overflow: hidden;
  color: #26303d;
  font-size: 9px;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.result-row .original-name {
  color: #68717e;
}

.proposed-label {
  margin-top: 8px;
  color: var(--blue-deep);
}

.safety-note {
  position: absolute;
  right: -24px;
  bottom: -30px;
  padding: 13px 16px;
  border: 1px solid rgba(22, 133, 88, 0.18);
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 11px;
  background: rgba(255, 255, 255, 0.93);
  box-shadow: 0 15px 40px rgba(20, 45, 68, 0.15);
  backdrop-filter: blur(16px);
}

.safety-note > span {
  width: 29px;
  height: 29px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #e2f6ed;
  color: var(--green);
  font-weight: 800;
}

.safety-note strong,
.safety-note small {
  display: block;
}

.safety-note strong { font-size: 12px; }
.safety-note small { margin-top: 2px; color: var(--muted); font-size: 10px; }

.section {
  padding: 112px 0;
}

.section-heading {
  max-width: 680px;
}

.section-heading.centred {
  margin-inline: auto;
  text-align: center;
}

.section-heading h2,
.privacy-copy h2,
.download-lead h2 {
  margin: 0;
  font-size: clamp(2.35rem, 4.5vw, 4.3rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.section-heading > p:last-child,
.privacy-copy > p,
.download-lead p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

.workflow-section {
  border-block: 1px solid rgba(23, 27, 36, 0.08);
  background: rgba(255, 255, 255, 0.48);
}

.workflow-grid {
  margin-top: 58px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.workflow-card,
.feature-card {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.66);
}

.workflow-card {
  position: relative;
  min-height: 252px;
  padding: 30px;
  border-radius: 18px;
}

.step-number {
  display: block;
  color: var(--blue-deep);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  font-weight: 700;
}

.workflow-card h3,
.feature-card h3,
.formats-band h3,
.requirements-grid h3 {
  margin: 26px 0 0;
  font-size: 20px;
  letter-spacing: -0.025em;
}

.workflow-card p,
.feature-card p {
  margin: 13px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.rename-example {
  margin-top: 18px;
  padding: 22px 26px;
  border: 1px solid rgba(8, 127, 255, 0.15);
  border-radius: 18px;
  display: grid;
  grid-template-columns: minmax(0, 0.62fr) auto minmax(0, 1.38fr);
  align-items: center;
  gap: 22px;
  background: linear-gradient(125deg, rgba(255, 255, 255, 0.78), rgba(224, 244, 255, 0.58));
}

.rename-example > div {
  min-width: 0;
}

.rename-example span:not(.rename-arrow) {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rename-example code {
  margin-top: 6px;
  display: block;
  overflow-wrap: anywhere;
  color: #283343;
  font-size: 13px;
}

.rename-arrow {
  color: var(--blue);
  font-size: 25px;
}

.split-heading {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.56fr);
  align-items: end;
  gap: 80px;
}

.split-heading > p {
  margin: 0 0 8px;
}

.feature-grid {
  margin-top: 58px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  min-height: 260px;
  padding: 28px;
  border-radius: 18px;
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.feature-card:hover {
  border-color: rgba(8, 127, 255, 0.24);
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
}

.feature-mark {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(8, 127, 255, 0.14);
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(214, 239, 255, 0.76));
  color: var(--blue-deep);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
  font-weight: 800;
  box-shadow: 0 8px 20px rgba(8, 105, 211, 0.1);
}

.feature-card h3 {
  margin-top: 25px;
}

.formats-band {
  margin-top: 18px;
  padding: 34px 36px;
  border: 1px solid var(--line);
  border-radius: 20px;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: center;
  gap: 56px;
  background: #1b2431;
  color: white;
}

.formats-band .eyebrow {
  color: #8bdffc;
}

.formats-band h3 {
  margin: 0;
  font-size: 25px;
}

.format-groups {
  display: grid;
  gap: 15px;
}

.format-groups div {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 18px;
}

.format-groups strong {
  color: #b7dff4;
  font-size: 12px;
}

.format-groups span {
  color: #e6edf4;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11px;
}

.models-section {
  border-block: 1px solid rgba(255, 255, 255, 0.1);
  background: #18222f;
  color: white;
}

.models-section .eyebrow {
  color: #8de4ff;
}

.models-section .section-heading h2 {
  color: white;
}

.models-section .section-heading > p:last-child {
  color: #bdc9d6;
}

.local-model-card {
  margin-top: 58px;
  padding: 34px;
  border: 1px solid rgba(141, 228, 255, 0.2);
  border-radius: 24px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  background:
    radial-gradient(circle at 12% 10%, rgba(56, 214, 245, 0.15), transparent 18rem),
    rgba(255, 255, 255, 0.055);
}

.model-type,
.cloud-model-label {
  color: #8de4ff;
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.local-model-card h3,
.cloud-model-card h3 {
  margin: 10px 0 0;
  color: white;
  letter-spacing: -0.03em;
}

.local-model-card h3 {
  font-size: 32px;
}

.cloud-model-card h3 {
  font-size: 20px;
}

.model-id {
  max-width: 100%;
  margin-top: 10px;
  padding: 6px 8px;
  border-radius: 7px;
  display: inline-block;
  overflow-wrap: anywhere;
  background: rgba(0, 0, 0, 0.18);
  color: #b4eaff;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.model-summary > p {
  margin: 20px 0 0;
  color: #d4dee8;
  font-size: 15px;
}

.model-summary .model-note {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #aebdca;
  font-size: 13px;
}

.model-facts {
  margin: 0;
  display: grid;
}

.model-facts div {
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.model-facts div:last-child {
  padding-bottom: 0;
}

.local-model-card .model-facts div:first-child {
  padding-top: 0;
  border-top: 0;
}

.model-facts dt {
  color: #8bdffc;
  font-size: 10px;
  font-weight: 760;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.model-facts dd {
  margin: 4px 0 0;
  color: #e4ebf2;
  font-size: 14px;
  line-height: 1.5;
}

.cloud-model-label {
  margin: 34px 0 0;
}

.cloud-model-grid {
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  list-style: none;
}

.cloud-model-card {
  min-width: 0;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.055);
}

.cloud-model-card .model-facts {
  margin-top: 22px;
}

.cloud-model-card .model-facts dd {
  font-size: 13px;
}

.cloud-model-note {
  margin-top: 18px;
  padding: 20px 22px;
  border: 1px solid rgba(141, 228, 255, 0.16);
  border-radius: 16px;
  background: rgba(56, 214, 245, 0.055);
}

.cloud-model-note strong {
  display: block;
  color: white;
  font-size: 14px;
}

.cloud-model-note p {
  margin: 7px 0 0;
  color: #bdc9d6;
  font-size: 14px;
}

.privacy-section {
  overflow: hidden;
  border-block: 1px solid rgba(23, 27, 36, 0.08);
  background:
    radial-gradient(circle at 78% 48%, rgba(45, 192, 245, 0.14), transparent 22rem),
    rgba(255, 255, 255, 0.5);
}

.privacy-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  align-items: center;
  gap: 100px;
}

.privacy-copy > p {
  margin: 24px 0 0;
}

.text-link {
  min-height: 44px;
  margin-top: 25px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue-deep);
  font-weight: 680;
}

.privacy-card {
  position: relative;
  padding: 34px;
  border: 1px solid rgba(8, 127, 255, 0.14);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 28px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 24px 70px rgba(31, 61, 89, 0.11);
  backdrop-filter: blur(20px);
}

.shield {
  width: 82px;
  height: 92px;
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, #39d6f4, #087fff 65%, #0754bf);
  clip-path: polygon(50% 0, 91% 15%, 86% 70%, 50% 100%, 14% 70%, 9% 15%);
  color: white;
  font-size: 28px;
  font-weight: 800;
  filter: drop-shadow(0 13px 20px rgba(8, 100, 210, 0.24));
}

.privacy-card ul {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  list-style: none;
}

.privacy-card li {
  padding-bottom: 17px;
  border-bottom: 1px solid var(--line);
}

.privacy-card li:last-child {
  padding-bottom: 0;
  border: 0;
}

.privacy-card strong,
.privacy-card span {
  display: block;
}

.privacy-card strong {
  font-size: 14px;
}

.privacy-card li span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.download-section {
  background: #18222f;
  color: white;
}

.download-card {
  overflow: hidden;
  padding: 54px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  background:
    radial-gradient(circle at 7% 8%, rgba(255, 224, 167, 0.12), transparent 21rem),
    radial-gradient(circle at 94% 22%, rgba(49, 207, 247, 0.2), transparent 24rem),
    #202d3c;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.18);
}

.download-lead {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  align-items: center;
  gap: 34px;
}

.download-lead img {
  filter: drop-shadow(0 18px 19px rgba(0, 0, 0, 0.26));
}

.download-lead .eyebrow {
  color: #8de4ff;
}

.download-lead h2 {
  color: white;
  font-size: clamp(2.4rem, 4vw, 4rem);
}

.download-lead p {
  max-width: 710px;
  margin: 15px 0 24px;
  color: #bac6d3;
}

.requirements-grid {
  margin-top: 50px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
}

.requirements-grid h3 {
  margin: 0;
  color: white;
  font-size: 16px;
}

.plain-list,
.install-list {
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  color: #c9d3de;
  font-size: 14px;
  list-style: none;
}

.plain-list li::before {
  content: "✓";
  margin-right: 10px;
  color: #62dca9;
  font-weight: 800;
}

.install-list li {
  display: flex;
  align-items: center;
  gap: 11px;
}

.install-list span {
  width: 24px;
  height: 24px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #96ddff;
  font-size: 11px;
  font-weight: 750;
}

.checksum {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.checksum summary {
  width: fit-content;
  min-height: 44px;
  cursor: pointer;
  display: flex;
  align-items: center;
  color: #b6dff3;
  font-size: 13px;
  font-weight: 650;
}

.checksum summary::after {
  content: "›";
  margin-left: 9px;
  display: inline-block;
  font-size: 18px;
  line-height: 1;
  transition: transform 160ms ease;
}

.checksum[open] summary::after {
  transform: rotate(90deg);
}

.checksum div {
  margin-top: 15px;
  display: flex;
  align-items: flex-start;
  gap: 13px;
}

.checksum div span {
  flex: 0 0 auto;
  padding-top: 2px;
  color: #93a3b5;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.checksum code {
  overflow-wrap: anywhere;
  color: #dce8f3;
  font-size: 11px;
}

.changelog-section {
  border-bottom: 1px solid rgba(23, 27, 36, 0.08);
  background: rgba(255, 255, 255, 0.52);
}

.release-list {
  margin: 58px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.release-list > li {
  border-bottom: 1px solid var(--line-strong);
}

.release-entry {
  padding: 34px 0;
  display: grid;
  grid-template-columns: minmax(180px, 0.38fr) minmax(0, 1fr);
  gap: 56px;
}

.release-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.release-status {
  padding: 6px 9px;
  border: 1px solid rgba(15, 114, 74, 0.16);
  border-radius: 999px;
  background: #e2f6ed;
  color: var(--green);
  font-size: 11px;
  font-weight: 750;
}

.release-status-preview {
  border-color: rgba(8, 127, 255, 0.2);
  background: #e4f2ff;
  color: var(--blue-deep);
}

.release-entry-preview {
  padding-block: 42px;
}

.release-meta time {
  color: #303844;
  font-size: 14px;
  font-weight: 650;
}

.release-status + time {
  margin-top: 16px;
}

.release-delivery {
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.release-copy {
  min-width: 0;
}

.release-copy h3 {
  margin: 0;
  font-size: 27px;
  letter-spacing: -0.035em;
}

.release-title {
  margin: 7px 0 0;
  color: #303844;
  font-weight: 680;
}

.release-highlights {
  margin: 20px 0 0;
  padding-left: 20px;
  list-style: disc;
  display: grid;
  gap: 11px;
  color: var(--muted);
}

.release-highlights li {
  padding-left: 4px;
}

.release-highlights li::marker {
  color: var(--blue);
}

.release-groups {
  margin-top: 28px;
  display: grid;
  gap: 30px;
}

.release-group {
  min-width: 0;
}

.release-group h4 {
  margin: 0;
  color: #303844;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.release-group .release-highlights {
  margin-top: 13px;
}

.release-group > p {
  margin: 13px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.support-section {
  border-bottom: 1px solid rgba(23, 27, 36, 0.08);
  background:
    radial-gradient(circle at 86% 18%, rgba(56, 214, 245, 0.13), transparent 18rem),
    var(--paper);
}

.support-card {
  padding: 48px 52px;
  border: 1px solid rgba(8, 127, 255, 0.14);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 56px;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: 0 20px 60px rgba(27, 45, 76, 0.08);
}

.support-copy {
  max-width: 700px;
}

.support-copy h2 {
  font-size: clamp(2rem, 4.2vw, 3.3rem);
}

.support-copy > p:last-child {
  max-width: 640px;
  margin: 18px 0 0;
  color: var(--muted);
}

.support-payment {
  min-width: 250px;
}

.support-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(64px, 1fr));
  gap: 10px;
}

.support-button {
  border-color: rgba(8, 127, 255, 0.24);
  background: rgba(255, 255, 255, 0.82);
  color: var(--blue-deep);
  box-shadow: 0 8px 22px rgba(8, 110, 225, 0.08);
}

.support-button:hover {
  border-color: rgba(8, 127, 255, 0.4);
  background: white;
  box-shadow: 0 11px 26px rgba(8, 110, 225, 0.14);
}

.support-payment > p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.privacy-copy p a {
  color: var(--blue-deep);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.62fr 1.38fr;
  gap: 100px;
}

.faq-list {
  border-top: 1px solid var(--line-strong);
}

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

.faq-list summary {
  padding: 22px 46px 22px 0;
  position: relative;
  cursor: pointer;
  font-size: 17px;
  font-weight: 650;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 5px;
  color: var(--blue-deep);
  font-size: 24px;
  font-weight: 400;
  transition: transform 160ms ease;
}

.faq-list details[open] summary::after {
  transform: rotate(45deg);
}

.faq-list p {
  max-width: 700px;
  margin: -4px 50px 24px 0;
  color: var(--muted);
}

.error-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px;
}

.error-page main {
  width: min(560px, 100%);
}

.error-card {
  padding: 54px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
  text-align: center;
}

.error-card img {
  margin: 0 auto 28px;
}

.error-card h1 {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
}

.error-card > p:not(.eyebrow) {
  margin: 18px 0 28px;
  color: var(--muted);
}

footer {
  padding: 38px 0;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.46);
}

.footer-grid {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 22px;
}

.footer-grid > p {
  color: var(--muted);
  font-size: 13px;
}

.footer-links {
  display: flex;
  gap: 23px;
  color: #4c5562;
  font-size: 13px;
  font-weight: 600;
}

.footer-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.footer-grid small {
  grid-column: 1 / -1;
  color: #656d78;
  font-size: 11px;
}

@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 780px;
  }

  .product-stage {
    width: min(760px, 94%);
    margin: 10px auto 0;
  }

  .split-heading,
  .privacy-grid,
  .faq-grid {
    gap: 50px;
  }

  .cloud-model-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 840px) {
  :root {
    --shell: min(100% - 32px, 700px);
  }

  html {
    scroll-padding-top: 132px;
  }

  .site-header {
    background: rgba(247, 244, 238, 0.97);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .nav-shell {
    min-height: auto;
    padding-block: 10px;
    flex-wrap: wrap;
    gap: 8px 14px;
  }

  .site-header .brand {
    order: 1;
  }

  .site-header .button-small {
    order: 2;
    margin-left: auto;
  }

  .site-header .desktop-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
    font-size: 12px;
  }

  .site-header .desktop-nav a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .hero {
    padding: 78px 0 90px;
  }

  .hero-grid {
    gap: 52px;
  }

  .product-stage {
    width: 100%;
    transform: none;
  }

  .workflow-grid,
  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .split-heading,
  .privacy-grid,
  .support-card,
  .formats-band,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .privacy-grid {
    gap: 54px;
  }

  .support-card {
    gap: 32px;
  }

  .support-payment {
    min-width: 0;
  }

  .local-model-card {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .requirements-grid {
    gap: 42px;
  }

  .faq-grid {
    gap: 30px;
  }

  .release-entry {
    grid-template-columns: 1fr;
    gap: 22px;
  }
}

@media (max-width: 620px) {
  .nav-shell {
    min-height: 66px;
  }

  .brand {
    font-size: 17px;
  }

  .brand img {
    width: 36px;
    height: 36px;
  }

  h1 {
    font-size: clamp(3rem, 15vw, 4.3rem);
  }

  .hero-intro {
    font-size: 17px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
  }

  .window-body {
    min-height: 420px;
    grid-template-columns: 1fr;
  }

  .window-body aside {
    display: none;
  }

  .results-panel {
    padding: 20px 14px 16px;
  }

  .mock-action {
    display: none;
  }

  .safety-note {
    right: 12px;
    bottom: -24px;
  }

  .section {
    padding: 82px 0;
  }

  .workflow-grid,
  .feature-grid,
  .requirements-grid {
    grid-template-columns: 1fr;
  }

  .workflow-card,
  .feature-card {
    min-height: auto;
  }

  .rename-example {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .rename-arrow {
    transform: rotate(90deg);
  }

  .formats-band,
  .privacy-card,
  .download-card,
  .support-card {
    padding: 28px 22px;
  }

  .local-model-card {
    padding: 28px 22px;
  }

  .cloud-model-grid {
    grid-template-columns: 1fr;
  }

  .format-groups div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .privacy-card {
    grid-template-columns: 1fr;
  }

  .shield {
    width: 66px;
    height: 74px;
  }

  .download-lead {
    grid-template-columns: 1fr;
  }

  .download-lead img {
    width: 84px;
    height: 84px;
  }

  .checksum div {
    flex-direction: column;
  }

  .release-entry {
    padding: 28px 0;
    gap: 18px;
  }

  .release-highlights {
    padding-left: 17px;
  }

  .error-card {
    padding: 38px 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid > p {
    margin: 0;
  }

  .footer-links {
    flex-wrap: wrap;
  }

  .footer-grid small {
    grid-column: auto;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}