:root {
  color-scheme: dark;
  --header-height: clamp(62px, 8.55vh, 100px);
  --header-width: 1840px;
  --features-width: min(1092px, calc(100vw - 80px));
  --download-width: min(1780px, 86.914vw);
  --background: #050109;
  --surface: rgba(11, 6, 22, 0.86);
  --card: #0b0616;
  --secondary: #16102a;
  --border: rgba(255, 255, 255, 0.14);
  --text: #ffffff;
  --muted: #b6aecb;
  --violet: #a855f7;
  --purple: #7c3aed;
  --accent: #c026d3;
  --blue: #6366f1;
  --green: #39de82;
}

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

html {
  scroll-behavior: smooth;
  background: var(--background);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background: var(--background);
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

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

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

button {
  font: inherit;
}

.icon-library {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--header-height);
  border-bottom: 0;
  background: linear-gradient(180deg, rgba(5, 1, 9, 0.76), rgba(5, 1, 9, 0.18));
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.site-header::before {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  content: "";
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(168, 85, 247, 0.7), transparent);
}

.site-header::after {
  position: absolute;
  right: 0;
  bottom: -32px;
  left: 0;
  height: 64px;
  content: "";
  pointer-events: none;
  background: radial-gradient(60% 100% at 50% 0%, rgba(168, 85, 247, 0.28), transparent 70%);
  filter: blur(18px);
}

.header-shell {
  width: min(calc(100% - 128px), var(--header-width));
  height: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.brand {
  justify-self: start;
  font-family: Inter, Arial, sans-serif;
  font-size: clamp(20px, 1.35vw, 24px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.7px;
  background: linear-gradient(100deg, #f472b6 0%, #c026d3 45%, #7c3aed 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 14px rgba(192, 38, 211, 0.24));
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(44px, 4.6vw, 76px);
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
}

.primary-nav a {
  position: relative;
  padding: calc((var(--header-height) - 28px) / 2) 2px;
  white-space: nowrap;
  transition: color 180ms ease;
}

.primary-nav a::after {
  position: absolute;
  right: 50%;
  bottom: calc((var(--header-height) - 28px) / 2 - 8px);
  left: 50%;
  height: 2px;
  border-radius: 999px;
  content: "";
  background: #a855f7;
  box-shadow: 0 0 12px rgba(168, 85, 247, 0.9);
  transition: right 180ms ease, left 180ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav a.is-active {
  color: #fff;
}

.primary-nav a:hover::after,
.primary-nav a:focus-visible::after,
.primary-nav a.is-active::after {
  right: 0;
  left: 0;
}

.header-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 12px;
}

.header-download {
  min-width: 104px;
  min-height: 36px;
  border: 1px solid transparent;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(90deg, #c026d3, #a855f7 52%, #6366f1);
  box-shadow: 0 0 24px rgba(168, 85, 247, 0.35);
  font-weight: 500;
}

.page-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background-color: var(--background);
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  scroll-margin-top: 0;
}

.hero-section {
  min-height: 100svh;
  background-image:
    linear-gradient(180deg, rgba(5, 1, 9, 0.85) 0%, rgba(5, 1, 9, 0.35) 28%, rgba(5, 1, 9, 0) 55%),
    url("./assets/planet-hero.webp");
  background-position: center bottom;
}

.hero-content {
  position: absolute;
  z-index: 2;
  top: clamp(150px, 26vh, 300px);
  left: 50%;
  width: min(calc(100% - 40px), 840px);
  text-align: center;
  transform: translateX(-50%);
}

.hero-title {
  margin: 0;
  font-size: clamp(42px, 5vw, 64px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: 0.02em;
  text-shadow:
    0 0 18px rgba(233, 213, 255, 0.55),
    0 0 45px rgba(168, 85, 247, 0.45),
    0 0 90px rgba(168, 85, 247, 0.3);
}

.hero-title span,
.hero-copy span,
.download-copy h2 span,
.download-description span {
  display: block;
}

.hero-copy {
  max-width: 672px;
  margin: 28px auto 0;
  color: rgba(255, 255, 255, 0.85);
  font-size: clamp(13px, 1vw, 15px);
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0;
  text-shadow: 0 3px 15px rgba(0, 0, 0, 0.84);
}

.hero-actions {
  margin-top: 40px;
  display: flex;
  justify-content: center;
  gap: 24px;
}

.button {
  position: relative;
  width: 152px;
  min-width: 152px;
  min-height: 52px;
  border: 1px solid var(--border);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #fff;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.button::before,
.download-cta::before {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(110deg, transparent 24%, rgba(255, 255, 255, 0.2) 48%, transparent 72%);
  transform: translateX(-120%);
  transition: transform 420ms ease;
}

.button:hover::before,
.button:focus-visible::before,
.download-cta:hover::before,
.download-cta:focus-visible::before {
  transform: translateX(120%);
}

.button:hover,
.button:focus-visible {
  transform: scale(1.03);
  border-color: rgba(226, 192, 255, 0.72);
  box-shadow: 0 10px 28px rgba(86, 36, 211, 0.28);
}

.button-primary {
  border-color: transparent;
  background: linear-gradient(90deg, #c026d3, #a855f7 50%, #6366f1);
  box-shadow: 0 0 28px rgba(168, 85, 247, 0.55);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.05);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.features-section {
  min-height: 100svh;
  padding: calc(var(--header-height) + min(76px, 8vh)) min(28px, 1.367vw) min(56px, 6.222vh);
  background-image: url("./assets/features-background.webp");
}

.features-shell {
  width: min(100%, var(--features-width));
  margin: 0 auto;
}

.section-heading {
  margin: 0 auto min(44px, 4.889vh);
  text-align: center;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: min(20px, 1.042vw);
}

.section-title-row h2 {
  margin: 0;
  font-size: clamp(34px, 2.083vw, 40px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -1px;
}

.heading-spark {
  position: relative;
  width: 25px;
  height: 17px;
}

.heading-spark::before,
.heading-spark::after {
  position: absolute;
  right: 0;
  height: 3px;
  border-radius: 4px;
  content: "";
  background: linear-gradient(90deg, #7c3aed, #c026d3);
  box-shadow: 0 0 9px rgba(192, 38, 211, 0.8);
}

.heading-spark::before {
  top: 2px;
  width: 13px;
}

.heading-spark::after {
  bottom: 2px;
  width: 20px;
}

.heading-spark.is-right {
  transform: scaleX(-1);
}

.section-subtitle {
  margin: min(14px, 1.556vh) 0 0;
  color: var(--muted);
  font-size: clamp(15px, 0.885vw, 17px);
  line-height: 1.4;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: min(28px, 3.111vh) min(32px, 1.667vw);
}

.feature-card {
  --pointer-x: 50%;
  --pointer-y: 0%;
  position: relative;
  min-height: min(270px, 30vh);
  padding: min(22px, 2.444vh) 16px min(18px, 2vh);
  border: 1px solid rgba(139, 92, 246, 0.52);
  border-radius: min(28px, 1.458vw);
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: visible;
  text-align: center;
  background:
    radial-gradient(circle at 50% 7%, rgba(134, 82, 255, 0.26), transparent 24%),
    radial-gradient(circle at 50% 34%, rgba(91, 66, 197, 0.13), transparent 38%),
    linear-gradient(155deg, rgba(16, 15, 45, 0.98), rgba(5, 5, 20, 0.97));
  box-shadow:
    inset 0 1px rgba(235, 220, 255, 0.14),
    inset 0 0 42px rgba(76, 29, 149, 0.08),
    0 18px 50px rgba(2, 1, 10, 0.5),
    0 0 28px rgba(91, 33, 182, 0.08);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.feature-card::before,
.platform-card::before {
  position: absolute;
  z-index: 2;
  left: 50%;
  width: 32%;
  height: 3px;
  border-radius: 999px;
  content: "";
  pointer-events: none;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, #fff 50%, transparent);
  box-shadow: 0 0 8px #fff, 0 0 18px #c026d3, 0 0 36px #a855f7, 0 0 58px rgba(124, 58, 237, 0.68);
}

.feature-card::before {
  top: -2px;
  width: 24%;
  height: 4px;
  opacity: 1;
  background: radial-gradient(ellipse at center, #fff 0 4%, #e9d5ff 9%, #c084fc 18%, #8b5cf6 35%, rgba(124, 58, 237, 0.34) 54%, transparent 76%);
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.88), 0 0 15px rgba(192, 132, 252, 0.84), 0 0 32px rgba(124, 58, 237, 0.64);
}

.feature-card--planning::before,
.feature-card--image::before,
.feature-card--video::before,
.feature-card--diagnosis::before,
.feature-card--library::before,
.feature-card--assets::before {
  inset: -10px 0 0;
  width: auto;
  height: auto;
  border-radius: inherit;
  transform: none;
  background-image: url("./assets/feature-image-source.png");
  background-position: center;
  background-size: 106.5% 108%;
  background-repeat: no-repeat;
  box-shadow: none;
  mix-blend-mode: screen;
  -webkit-mask-image: radial-gradient(ellipse 25% 16% at 50% 10px, #000 0%, #000 30%, rgba(0, 0, 0, 0.86) 48%, rgba(0, 0, 0, 0.28) 68%, transparent 84%);
  mask-image: radial-gradient(ellipse 25% 16% at 50% 10px, #000 0%, #000 30%, rgba(0, 0, 0, 0.86) 48%, rgba(0, 0, 0, 0.28) 68%, transparent 84%);
}

.feature-card::after {
  position: absolute;
  z-index: 1;
  inset: 0;
  border-radius: inherit;
  content: "";
  pointer-events: none;
  background: radial-gradient(circle at var(--pointer-x) var(--pointer-y), rgba(192, 132, 252, 0.16), transparent 36%);
  opacity: 0;
  transition: opacity 220ms ease;
}

.feature-card:hover,
.feature-card:focus-within {
  transform: translateY(-6px);
  border-color: rgba(192, 132, 252, 0.78);
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.18),
    inset 0 0 50px rgba(91, 33, 182, 0.12),
    0 0 30px rgba(168, 85, 247, 0.18),
    0 28px 72px rgba(28, 8, 55, 0.5);
}

.feature-card:hover::after,
.feature-card:focus-within::after {
  opacity: 1;
}

.feature-card > * {
  position: relative;
  z-index: 3;
}

.feature-icon-art {
  flex: 0 0 auto;
  width: min(118px, 6.146vw);
  height: min(105px, 5.469vw);
  margin: 0 0 min(13px, 1.444vh);
  background-repeat: no-repeat;
  mix-blend-mode: screen;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 42%, rgba(0, 0, 0, 0.8) 58%, transparent 76%);
  mask-image: radial-gradient(ellipse at center, #000 42%, rgba(0, 0, 0, 0.8) 58%, transparent 76%);
  filter: saturate(1.08) contrast(1.04) drop-shadow(0 0 12px rgba(105, 64, 255, 0.34));
  transition: transform 220ms ease, filter 220ms ease;
}

.feature-card--planning .feature-icon-art,
.feature-card--image .feature-icon-art,
.feature-card--video .feature-icon-art,
.feature-card--diagnosis .feature-icon-art,
.feature-card--library .feature-icon-art,
.feature-card--assets .feature-icon-art {
  background-image: url("./assets/feature-cards-reference.png");
  background-size: 1442.254% 960%;
}

.feature-card--planning .feature-icon-art {
  background-position: 25.656% 36.628%;
}

.feature-card--image .feature-icon-art {
  background-position: 49.79% 36.628%;
}

.feature-card--video .feature-icon-art {
  background-position: 74.029% 36.628%;
}

.feature-card--diagnosis .feature-icon-art {
  background-position: 25.656% 72.093%;
}

.feature-card--library .feature-icon-art {
  background-position: 49.79% 71.899%;
}

.feature-card--assets .feature-icon-art {
  background-position: 74.029% 71.705%;
}

.feature-card:hover .feature-icon-art,
.feature-card:focus-within .feature-icon-art {
  transform: translateY(-3px) scale(1.045);
  filter: saturate(1.14) contrast(1.06) drop-shadow(0 0 18px rgba(128, 82, 255, 0.46));
}

.feature-card h3 {
  margin: 0 0 min(8px, 0.889vh);
  font-size: clamp(21px, 1.354vw, 26px);
  font-weight: 700;
  line-height: 1.3;
}

.feature-card p {
  max-width: 310px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(14px, 0.833vw, 16px);
  line-height: 1.68;
}

.download-section {
  min-height: 100svh;
  padding: calc(var(--header-height) + min(150px, 7.324vw, 13.021vh)) min(34px, 1.66vw) min(34px, 1.66vw, 2.951vh);
  background-image: url("./assets/download-background.webp");
}

.download-shell {
  width: min(100%, var(--download-width));
  margin: 0 auto;
}

.download-layout {
  display: grid;
  grid-template-columns: minmax(min(520px, 25.391vw), min(650px, 31.738vw)) minmax(0, min(960px, 46.875vw));
  justify-content: start;
  align-items: start;
  gap: min(130px, 6.348vw);
}

.download-copy {
  padding-top: min(14px, 0.684vw, 1.215vh);
}

.version-badge {
  width: fit-content;
  margin-bottom: min(43px, 2.1vw, 3.733vh);
  padding: min(12px, 0.586vw) min(25px, 1.221vw);
  border: 1px solid rgba(192, 38, 211, 0.62);
  border-radius: 999px;
  color: #f0abfc;
  background: rgba(192, 38, 211, 0.08);
  box-shadow: inset 0 0 28px rgba(168, 85, 247, 0.08);
  font-size: clamp(15px, 1vw, 20px);
  line-height: 1.4;
}

.download-copy h2 {
  margin: 0;
  font-size: clamp(52px, 4.004vw, 82px);
  font-weight: 700;
  line-height: 1.27;
  letter-spacing: -3px;
}

.download-copy h2 strong {
  font-weight: 700;
  background: linear-gradient(100deg, #f472b6 0%, #c026d3 45%, #7c3aed 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.download-description {
  margin: min(29px, 1.416vw, 2.517vh) 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.1vw, 22px);
  line-height: 1.95;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: min(64px, 3.125vw);
}

.platform-card {
  position: relative;
  min-height: min(496px, 24.219vw, 43.056vh);
  padding: min(72px, 3.516vw, 6.25vh) min(34px, 1.66vw) min(51px, 2.49vw, 4.427vh);
  border: 1px solid var(--border);
  border-radius: min(29px, 1.416vw);
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
  text-align: center;
  background: linear-gradient(150deg, rgba(17, 10, 35, 0.94), rgba(8, 4, 20, 0.88));
  box-shadow: 0 20px 70px rgba(5, 1, 9, 0.38);
}

.platform-card::before {
  top: -2px;
  width: 34%;
  height: 2px;
}

.platform-card.is-recommended {
  border-color: rgba(168, 85, 247, 0.72);
  background: linear-gradient(150deg, rgba(38, 17, 66, 0.92), rgba(11, 6, 22, 0.9));
  box-shadow: inset 0 0 42px rgba(168, 85, 247, 0.08), 0 0 20px rgba(192, 38, 211, 0.16), 0 22px 70px rgba(5, 1, 9, 0.42);
}

.windows-logo,
.apple-logo {
  width: min(96px, 4.688vw);
  height: min(96px, 4.688vw);
  margin-bottom: min(50px, 2.441vw, 4.34vh);
}

.windows-logo {
  fill: url("#windows-gradient");
  filter: drop-shadow(0 0 16px rgba(54, 194, 255, 0.42));
}

.windows-logo path {
  fill: url("#windows-gradient");
}

.apple-logo {
  padding: 4px 13px;
  fill: url("#apple-gradient");
  color: #e8e8ec;
  filter: drop-shadow(0 0 14px rgba(255, 255, 255, 0.16));
}

.apple-logo path {
  fill: url("#apple-gradient");
}

.platform-card h3 {
  margin: 0;
  font-size: clamp(29px, 1.7vw, 36px);
  font-weight: 700;
  line-height: 1.25;
}

.platform-status {
  min-height: 34px;
  margin: min(17px, 0.83vw, 1.476vh) 0 min(34px, 1.66vw, 2.951vh);
  color: var(--muted);
  font-size: clamp(17px, 1.05vw, 21px);
  line-height: 1.6;
}

.platform-status.is-ready {
  color: var(--green);
}

.verified-badge {
  display: inline-grid;
  width: 21px;
  height: 23px;
  margin-left: 6px;
  place-items: center;
  border-radius: 6px 6px 9px 9px;
  color: #fff;
  background: #28af69;
  font-size: 13px;
  vertical-align: 2px;
}

.download-cta {
  width: 100%;
  min-height: min(82px, 4.004vw, 7.118vh);
  margin-top: auto;
  border-radius: min(27px, 1.318vw);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(20px, 1.25vw, 27px);
}

.download-cta {
  position: relative;
  border: 0;
  gap: 20px;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(90deg, #c026d3, #a855f7 50%, #6366f1);
  box-shadow: 0 0 28px rgba(168, 85, 247, 0.38);
  cursor: pointer;
}

.download-cta svg {
  width: 31px;
  height: 31px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-panel {
  min-height: min(206px, 10.059vw, 17.882vh);
  margin-top: min(80px, 3.906vw, 6.944vh);
  padding: min(30px, 1.465vw, 2.604vh) min(48px, 2.344vw);
  border: 1px solid var(--border);
  border-radius: min(18px, 0.879vw);
  display: grid;
  grid-template-columns: 0.72fr 1.7fr;
  align-items: center;
  gap: min(48px, 2.344vw);
  background: rgba(11, 6, 22, 0.72);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.025);
  scroll-margin-top: calc(var(--header-height) + 18px);
}

.contact-intro {
  align-self: stretch;
  padding-right: min(42px, 2.051vw);
  border-right: 1px solid rgba(160, 151, 205, 0.14);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-panel h3 {
  margin: 0;
  font-size: clamp(22px, 1.35vw, 28px);
  font-weight: 700;
}

.contact-panel p {
  margin: 13px 0 0;
  color: var(--muted);
  font-size: clamp(15px, 0.95vw, 19px);
  line-height: 1.68;
}

.address-block {
  display: flex;
  align-items: center;
  gap: min(30px, 1.465vw);
}

.address-icon {
  flex: 0 0 auto;
  width: min(102px, 4.98vw);
  height: min(102px, 4.98vw);
  border: 1px solid rgba(168, 85, 247, 0.3);
  border-radius: min(20px, 0.977vw);
  display: grid;
  place-items: center;
  color: #c026d3;
  background: linear-gradient(145deg, rgba(124, 58, 237, 0.34), rgba(22, 16, 42, 0.78));
  box-shadow: inset 0 0 22px rgba(168, 85, 247, 0.12);
}

.address-icon svg {
  width: min(56px, 2.734vw);
  height: min(56px, 2.734vw);
  fill: currentColor;
  stroke: #7c3aed;
  stroke-width: 0.8;
}

.site-footer {
  padding: min(41px, 2.002vw, 3.559vh) min(20px, 0.977vw) min(10px, 0.488vw, 0.868vh);
  color: #747284;
  text-align: center;
  font-size: clamp(14px, 0.95vw, 18px);
}

.toast {
  position: fixed;
  z-index: 200;
  right: 24px;
  bottom: 24px;
  max-width: min(380px, calc(100% - 48px));
  padding: 14px 18px;
  border: 1px solid rgba(168, 85, 247, 0.46);
  border-radius: 14px;
  color: #f4edff;
  background: rgba(11, 6, 22, 0.96);
  box-shadow: 0 16px 50px rgba(15, 3, 42, 0.45);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

:focus-visible {
  outline: 2px solid #a855f7;
  outline-offset: 4px;
}

@media (max-width: 1499px) {
  .header-actions { display: none; }
}

@media (max-width: 1400px) {
  .download-section { min-height: auto; }
  .download-layout { grid-template-columns: 1fr; gap: 64px; }
  .download-copy { padding-top: 0; text-align: center; }
  .version-badge { margin-inline: auto; }
  .download-copy h2 { max-width: 760px; margin-inline: auto; }
  .platform-grid { width: min(100%, 960px); margin: 0 auto; }
}

@media (max-width: 1220px) {
  .header-shell { width: min(calc(100% - 64px), var(--header-width)); }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-icon-art { width: 128px; height: 108px; }
  .feature-card--planning .feature-icon-art,
  .feature-card--image .feature-icon-art { height: 122px; }
  .features-section { min-height: auto; }
}

@media (max-width: 760px) {
  :root { --header-height: 62px; }
  .site-header { background: rgba(5, 1, 9, 0.9); }
  .header-shell { width: calc(100% - 28px); grid-template-columns: auto 1fr; }
  .brand { font-size: 20px; letter-spacing: -0.7px; }
  .primary-nav { justify-self: end; gap: 14px; font-size: 12px; }
  .primary-nav a { padding-inline: 0; }
  .header-actions { display: none; }
  .hero-content { top: 26vh; }
  .hero-title { font-size: clamp(42px, 13.5vw, 60px); letter-spacing: 0.02em; }
  .hero-copy { font-size: 14px; letter-spacing: 0; }
  .hero-actions { width: auto; margin-inline: auto; flex-direction: column; gap: 16px; }
  .button { width: 152px; }
  .features-section { padding: calc(var(--header-height) + 56px) 18px 70px; }
  .section-heading { margin-bottom: 40px; }
  .section-title-row { gap: 13px; }
  .heading-spark { transform: scale(0.72); }
  .heading-spark.is-right { transform: scale(-0.72, 0.72); }
  .feature-grid,
  .platform-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 300px; padding-inline: 22px; }
  .feature-card--planning .feature-icon-art,
  .feature-card--image .feature-icon-art { height: 128px; }
  .download-section { padding: calc(var(--header-height) + 76px) 18px 30px; }
  .download-copy h2 { font-size: clamp(47px, 14vw, 64px); letter-spacing: -2px; }
  .download-description { font-size: 16px; }
  .platform-grid { gap: 24px; }
  .platform-card { min-height: 430px; padding: 52px 24px 32px; }
  .contact-panel { margin-top: 56px; padding: 28px 22px; grid-template-columns: 1fr; gap: 28px; }
  .contact-intro { padding: 0 0 26px; border-right: 0; border-bottom: 1px solid rgba(160, 151, 205, 0.14); text-align: center; }
  .address-block { align-items: flex-start; gap: 18px; }
  .address-icon { width: 72px; height: 72px; border-radius: 16px; }
  .address-icon svg { width: 40px; height: 40px; }
  .site-footer { padding-top: 34px; }
}

@media (max-width: 430px) {
  .primary-nav { gap: 10px; font-size: 11px; }
  .hero-copy span:first-child { max-width: 330px; margin: 0 auto; }
  .download-copy h2 span:first-child { white-space: nowrap; }
  .download-cta { gap: 12px; font-size: 18px; }
  .address-block { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}