/* ============================================================
   Aither — Design System
   Minimal, monochrome-first, violet accent. Linear/Vercel-leaning.
   Light theme, hairline structure, generous whitespace.
   ============================================================ */

:root {
  color-scheme: light;
  --bg: #ffffff;
  --bg-soft: #fafafa;
  --ink: #0a0a0a;
  --ink-2: #3d3d46;
  --muted: #62626d;
  --faint: #8e8e98;
  --line: #e8e8ec;
  --line-strong: #d6d6de;
  --panel: #f6f6f8;
  --violet: #6d5ae0;
  --violet-deep: #4f46c8;
  --violet-soft: #efedfd;
  --grad: linear-gradient(135deg, #7c5cff 0%, #4f46c8 100%);
  --dark: #0a0a0c;
  --dark-2: #101013;
  --on-dark: #f4f4f6;
  --on-dark-muted: #9b9ba7;
  --danger: #c4402f;
  --shadow: 0 1px 2px rgba(10, 10, 12, 0.04), 0 12px 32px -20px rgba(10, 10, 12, 0.18);
  --radius: 16px;
  --radius-sm: 10px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.anim .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.6s cubic-bezier(0.2, 0.7, 0.2, 1),
    transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
  transition-delay: var(--rd, 0s);
}

.anim .reveal.is-visible {
  opacity: 1;
  transform: none;
}

body.menu-locked {
  overflow: hidden;
}
[id] {
  scroll-margin-top: 84px;
}


::selection {
  background: var(--violet-soft);
  color: var(--violet-deep);
}

a {
  color: inherit;
}

img,
svg {
  max-width: 100%;
}

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 650;
}

p {
  margin: 0;
}

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

.container {
  width: 100%;
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 36px);
}

/* ---------------- reveal ---------------- */


/* ---------------- nav ---------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, background 0.25s;
}

.nav.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(255, 255, 255, 0.86);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex: none;
}

.brand-mark {
  width: 26px;
  height: 26px;
  display: block;
  border-radius: 7px;
  flex: none;
}

.brand-name {
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  padding: 7px 12px;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--ink);
  background: var(--panel);
}

.nav-cta {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  place-items: center;
  padding: 0;
}

.nav-toggle span {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s, background 0.2s;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s, top 0.2s;
}

.nav-toggle span::before { top: -5px; }
.nav-toggle span::after { top: 5px; }

.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

.nav-menu {
  display: none;
}

/* ---------------- buttons ---------------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  color: var(--ink);
  font: inherit;
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s, transform 0.15s;
}

.button:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
}

.button.primary {
  background: var(--ink);
  border-color: var(--ink);
  color: #ffffff;
}

.button.primary:hover {
  background: #232329;
  border-color: #232329;
}

.button.small {
  padding: 8px 16px;
  font-size: 13.5px;
}

.button.on-dark {
  background: var(--on-dark);
  border-color: var(--on-dark);
  color: var(--ink);
}

.button.on-dark:hover {
  background: #ffffff;
  border-color: #ffffff;
}

/* ---------------- layout shells ---------------- */

.section {
  padding: clamp(72px, 11vh, 128px) 0;
}

.section.hr {
  border-top: 1px solid var(--line);
}

.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--violet);
}

.kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grad);
}

.section h2 {
  font-size: clamp(28px, 3.6vw, 44px);
  letter-spacing: -0.025em;
}

.section-head {
  max-width: 720px;
  margin-bottom: clamp(36px, 5vw, 56px);
}

.section-head .section-lead {
  margin-top: 18px;
  font-size: clamp(15.5px, 1.5vw, 17.5px);
  color: var(--muted);
  max-width: 36em;
}

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

.section-head.center .kicker {
  justify-content: center;
}

.section-head.center .section-lead {
  margin-inline: auto;
}

/* ---------------- hero ---------------- */

.hero {
  position: relative;
  padding: 168px 0 clamp(72px, 10vh, 120px);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(52rem 30rem at 82% -12%, rgba(124, 92, 255, 0.10), transparent 62%),
    linear-gradient(rgba(10, 10, 12, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 10, 12, 0.025) 1px, transparent 1px);
  background-size: auto, 64px 64px, 64px 64px;
  mask-image: linear-gradient(180deg, #000 0%, #000 62%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 62%, transparent 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: clamp(36px, 5vw, 72px);
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 24px;
  padding: 6px 14px 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.hero-eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--grad);
}

.hero h1 {
  font-size: clamp(42px, 6.4vw, 76px);
  font-weight: 750;
  letter-spacing: -0.035em;
  line-height: 1.04;
  margin: 0 0 26px;
}

.hero h1 .accent {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: clamp(16px, 1.6vw, 18.5px);
  color: var(--muted);
  max-width: 34em;
  margin: 0 0 14px;
}

.hero-sub-cn {
  font-size: 15.5px;
  color: var(--faint);
  max-width: 34em;
  margin: 0 0 36px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

/* orbit graphic */

.orbit-wrap {
  display: grid;
  place-items: center;
}

.orbit {
  width: min(100%, 460px);
  height: auto;
  display: block;
}

.orbit .ring {
  animation: orbit-spin 80s linear infinite;
  transform-origin: 230px 230px;
}

.orbit .ring.reverse {
  animation-direction: reverse;
  animation-duration: 110s;
}

.orbit .pulse {
  animation: orbit-pulse 5s ease-in-out infinite;
  transform-origin: center;
}

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

@keyframes orbit-pulse {
  0%, 100% { opacity: 0.5; }
  50%      { opacity: 1; }
}

/* ---------------- status pill ---------------- */

.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--bg);
  white-space: nowrap;
}

.status .s-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--faint);
}

.status.live .s-dot { background: #17b26a; }
.status.dev .s-dot { background: var(--violet); }
.status.soon .s-dot { background: var(--faint); }

/* ---------------- product cards ---------------- */

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.product-grid .span-2 {
  grid-column: span 2;
}

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.product-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.product-card .card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.product-mark {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  flex: none;
  border: 1px solid var(--line);
  background: var(--panel);
}

.product-mark svg {
  width: 22px;
  height: 22px;
}

.product-card h3 {
  font-size: 19px;
  letter-spacing: -0.015em;
}

.product-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

.product-card > p {
  font-size: 14.5px;
  color: var(--muted);
  flex: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

.card-link::after {
  content: "→";
  color: var(--violet);
  transition: transform 0.2s;
}

.product-card:hover .card-link::after,
a.row-card:hover .card-link::after {
  transform: translateX(4px);
}

/* flagship variant */

.product-card.flagship {
  background: linear-gradient(180deg, #fbfaff 0%, #ffffff 60%);
  border-color: color-mix(in srgb, var(--violet) 26%, var(--line));
}

/* ---------------- capability rows ---------------- */

.cap-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.row-card {
  display: grid;
  grid-template-columns: 64px 260px 1fr auto;
  gap: clamp(16px, 3vw, 40px);
  align-items: baseline;
  padding: clamp(22px, 3vw, 30px) clamp(4px, 1vw, 12px);
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: background 0.15s;
}

.row-card:hover {
  background: var(--bg-soft);
}

.row-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  letter-spacing: 0.08em;
}

.row-card h3 {
  font-size: 17.5px;
  letter-spacing: -0.01em;
}

.row-card p {
  font-size: 14.5px;
  color: var(--muted);
}

/* ---------------- principles grid ---------------- */

.principle-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.principle {
  padding: 26px 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
}

.principle .p-num {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--violet);
  letter-spacing: 0.14em;
}

.principle h3 {
  margin: 12px 0 8px;
  font-size: 17px;
}

.principle p {
  font-size: 14.5px;
  color: var(--muted);
}

/* ---------------- split feature (A New Way to Build) ---------------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}

.split h2 {
  font-size: clamp(26px, 3.2vw, 40px);
  letter-spacing: -0.025em;
  margin-bottom: 18px;
}

.split .split-copy > p {
  color: var(--muted);
  font-size: 16px;
  max-width: 30em;
}

.mini-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.mini-list li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.mini-list li:first-child {
  border-top: 1px solid var(--line);
}

.mini-list .m-ico {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: var(--violet-soft);
  color: var(--violet-deep);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
}

.mini-list strong {
  display: block;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.mini-list span {
  display: block;
  font-size: 13.5px;
  color: var(--muted);
  margin-top: 2px;
}

/* ---------------- manifesto (dark) ---------------- */

.manifesto {
  position: relative;
  background: var(--dark);
  color: var(--on-dark);
  overflow: hidden;
}

.manifesto::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(44rem 26rem at 50% 118%, rgba(124, 92, 255, 0.16), transparent 60%),
    linear-gradient(rgba(244, 244, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 244, 246, 0.03) 1px, transparent 1px);
  background-size: auto, 64px 64px, 64px 64px;
}

.manifesto-inner {
  position: relative;
  text-align: center;
  max-width: 860px;
  margin-inline: auto;
}

.manifesto h2 {
  font-size: clamp(30px, 4.6vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1.12;
  color: var(--on-dark);
}

.manifesto h2 .accent {
  background: linear-gradient(135deg, #a48bff 0%, #7c5cff 55%, #5d6dff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.manifesto .m-cn {
  margin-top: 22px;
  font-size: clamp(15.5px, 1.6vw, 18px);
  color: var(--on-dark-muted);
}

.manifesto .m-en {
  margin-top: 26px;
  font-size: 15px;
  color: var(--on-dark-muted);
  max-width: 38em;
  margin-inline: auto;
}

/* ---------------- contact ---------------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.contact-copy h2 {
  font-size: clamp(26px, 3.4vw, 42px);
  letter-spacing: -0.025em;
}

.contact-copy .section-lead {
  margin: 16px 0 24px;
  color: var(--muted);
  font-size: 16px;
  max-width: 28em;
}

.contact-points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-points li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 14.5px;
  color: var(--muted);
}

.contact-points li::before {
  content: "→";
  color: var(--violet);
  flex: none;
}

.form-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  box-shadow: var(--shadow);
  padding: clamp(24px, 3vw, 32px);
}

.contact-form {
  display: grid;
  gap: 16px;
}

.contact-form[hidden] { display: none; }

.field {
  display: grid;
  gap: 7px;
}

.field > span {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
}

.field > span b {
  color: var(--violet);
}

.contact-form input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.contact-form input::placeholder {
  color: var(--faint);
}

.contact-form input:focus {
  outline: none;
  border-color: var(--violet);
  box-shadow: 0 0 0 3px var(--violet-soft);
}

.contact-form input:not(:placeholder-shown):invalid {
  border-color: var(--danger);
}

.form-note {
  font-size: 12.5px;
  color: var(--faint);
}

.form-error {
  margin: 0;
  font-size: 13px;
  color: var(--danger);
}

.form-error[hidden] { display: none; }

.form-success {
  text-align: center;
  padding: 34px 10px;
  display: grid;
  justify-items: center;
  gap: 8px;
}

.form-success[hidden] { display: none; }

.form-success .fs-ico {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin-bottom: 8px;
  background: var(--grad);
  color: #ffffff;
}

.form-success h3 {
  font-size: 19px;
}

.form-success p {
  color: var(--muted);
  font-size: 14.5px;
}

/* ---------------- page header (subpages) ---------------- */

.page-hero {
  position: relative;
  padding: 156px 0 clamp(48px, 7vh, 80px);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(46rem 26rem at 18% -16%, rgba(124, 92, 255, 0.09), transparent 60%),
    linear-gradient(rgba(10, 10, 12, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 10, 12, 0.02) 1px, transparent 1px);
  background-size: auto, 64px 64px, 64px 64px;
  mask-image: linear-gradient(180deg, #000 0%, #000 72%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 72%, transparent 100%);
}

.page-hero h1 {
  font-size: clamp(34px, 4.8vw, 60px);
  font-weight: 750;
  letter-spacing: -0.03em;
  margin: 14px 0 18px;
}

.page-hero .page-lead {
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  color: var(--muted);
  max-width: 36em;
}

/* ---------------- CTA strip ---------------- */

.cta-strip {
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background: var(--dark);
  color: var(--on-dark);
  padding: clamp(36px, 5vw, 56px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(20px, 4vw, 48px);
  flex-wrap: wrap;
}

.cta-strip h2 {
  font-size: clamp(22px, 2.8vw, 32px);
  letter-spacing: -0.02em;
  color: var(--on-dark);
}

.cta-strip p {
  margin-top: 8px;
  color: var(--on-dark-muted);
  font-size: 15px;
  max-width: 34em;
}

/* ---------------- footer ---------------- */

.footer {
  border-top: 1px solid var(--line);
  padding: 56px 0 44px;
  background: var(--bg-soft);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(28px, 4vw, 56px);
  padding-bottom: 40px;
}

.footer-brand p {
  margin: 14px 0 0;
  font-size: 13.5px;
  color: var(--muted);
  max-width: 26em;
}

.footer-col h4 {
  margin: 2px 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}

.footer-col a {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-col a:hover {
  color: var(--ink);
}

.footer-meta {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--faint);
}

.footer-meta a {
  color: inherit;
  text-decoration: none;
}

.footer-meta a:hover {
  color: var(--ink);
}

/* ---------------- responsive ---------------- */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .orbit-wrap {
    order: -1;
  }

  .orbit {
    width: min(100%, 340px);
  }


  .row-card {
    grid-template-columns: 48px 1fr auto;
  }

  .row-card p {
    grid-column: 2 / -1;
    grid-row: 2;
  }
}

/* 小屏首屏以品牌信息为主，隐藏轨道图形 */
@media (max-width: 760px) {
  .orbit-wrap {
    display: none;
  }
}

@media (max-width: 920px) {
  .nav-links,
  .nav-cta .button.ghost-hide {
    display: none;
  }

  .nav-toggle {
    display: grid;
  }

  .nav-menu {
    display: block;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 55;
    background: var(--bg);
    padding: 24px clamp(20px, 4vw, 36px) 40px;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.22s, opacity 0.22s, visibility 0.22s;
    overflow-y: auto;
  }

  .nav-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu a {
    display: block;
    padding: 16px 4px;
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    text-decoration: none;
    border-bottom: 1px solid var(--line);
  }

  .nav-menu .menu-cta {
    margin-top: 24px;
    border-bottom: none;
  }

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

  .product-grid .span-2 {
    grid-column: auto;
  }

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

  .split,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  .hero {
    padding-top: 132px;
  }

  .hero h1 {
    font-size: clamp(34px, 11vw, 44px);
  }

  .page-hero h1 {
    font-size: clamp(30px, 9.6vw, 40px);
  }

  .cta-row .button {
    flex: 1 1 auto;
  }

  .row-card {
    grid-template-columns: 40px 1fr;
  }

  .row-card .card-link {
    grid-column: 2;
    grid-row: 3;
    margin-top: 8px;
  }

  .row-card h3 {
    font-size: 16.5px;
  }

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

  .button {
    width: 100%;
  }

  .cta-row .button,
  .nav-cta .button,
  .cta-strip .button {
    width: auto;
  }
}

/* ---------------- reduced motion ---------------- */

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

  .anim .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .orbit .ring,
  .orbit .pulse {
    animation: none;
  }

  .nav-menu {
    transition: none;
  }

  .button,
  .product-card,
  .row-card {
    transition: none;
  }
}