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

* { margin: 0; padding: 0; }

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
  scroll-behavior: auto;
  background: var(--ivory);
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  font-family: var(--font-ui);
  color: var(--ink);
  line-height: 1.5;
  font-weight: 450;
  background: var(--ivory);
  position: relative;
  transition: background 0.8s var(--ease);
}

img, svg { display: block; }

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

button { cursor: pointer; font-family: inherit; }

body > * { position: relative; z-index: 1; }

section { position: relative; width: 100%; }

body[data-theme="trust-0"] { background: var(--p-dim); }

body[data-theme="trust-1"] { background:
    radial-gradient(ellipse 50% 55% at 72% 42%, oklch(0.72 0.16 294 / 0.12), transparent 58%),
    oklch(0.975 0.008 215); }

body[data-theme="trust-2"] { background:
    radial-gradient(ellipse 42% 48% at 68% 52%, oklch(0.82 0.12 28 / 0.12), transparent 54%),
    var(--ivory-warm); }

body[data-theme="how-2"] { background:
    radial-gradient(ellipse 35% 40% at 72% 48%, oklch(0.25 0.018 245 / 0.08), transparent 55%),
    oklch(0.978 0.006 90); }

body[data-theme="how-3"] { background:
    radial-gradient(ellipse 42% 45% at 68% 52%, oklch(0.82 0.12 28 / 0.20), transparent 56%),
    var(--ivory-warm); }

body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: 0.18;
  background:
    linear-gradient(to right, oklch(0.35 0.03 286 / 0.024) 1px, transparent 1px),
    linear-gradient(to bottom, oklch(0.35 0.03 286 / 0.018) 1px, transparent 1px);
  background-size: 74px 74px;
  mask-image: linear-gradient(to bottom, transparent 0%, black 6%, black 86%, transparent 100%);
}

.atomi-wordmark {
  position: fixed; right: clamp(16px, 3.5vw, 44px); top: 0; bottom: 0;
  z-index: 2; pointer-events: none;
  display: flex; align-items: center;
}

.atomi-wordmark::before {
  content: ""; position: absolute;
  left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: clamp(180px, 18vw, 300px); aspect-ratio: 3/4;
  border: 1px solid oklch(0.62 0.06 295 / 0.10);
  border-radius: 46% 54% 48% 52% / 52% 56% 44% 48%;
  animation: aw-breathe 18s ease-in-out infinite;
}

@keyframes aw-breathe {
  0%, 100% { border-radius: 46% 54% 48% 52% / 52% 56% 44% 48%; }
  33%      { border-radius: 52% 48% 54% 46% / 48% 44% 56% 52%; }
  66%      { border-radius: 44% 56% 50% 50% / 56% 52% 48% 44%; }
}

.atomi-wordmark span {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(86px, 9.5vw, 148px);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 0.82;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.aw-outline {
  color: transparent;
  -webkit-text-stroke: 1px oklch(0.66 0.08 295 / 0.16);
}

.aw-fill {
  position: absolute; inset: 0;
  display: flex; align-items: center;
  background: linear-gradient(
    175deg,
    oklch(0.50 0.10 295) 0%,
    oklch(0.56 0.09 290) 30%,
    oklch(0.62 0.10 320) 60%,
    oklch(0.62 0.095 25)  85%,
    oklch(0.58 0.09 18)  100%
  );
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  clip-path: inset(0 0 calc(100% - var(--aw-progress, 0%)) 0);
  transition: clip-path 0.12s linear;
}

:root {
  --surface: oklch(0.992 0.01 82);
  --surface-line: oklch(0.72 0.035 78 / 0.22);
  --copy-measure: 68ch;
  --font-sans: var(--font-ui);
}

body {
  background:
    radial-gradient(ellipse 45% 28% at 74% 4%, oklch(0.84 0.12 52 / 0.08), transparent 70%),
    var(--ivory);
}

body::before {
  opacity: 0.1;
}

.hero-inner {
  width: min(1680px, 100%);
  grid-template-columns: minmax(500px, 44%) minmax(650px, 56%);
  padding-left: clamp(126px, 9vw, 156px);
  padding-right: clamp(34px, 3.5vw, 58px);
}

.visual-shadow {
  left: 32%;
  top: 87%;
  width: 29%;
  opacity: 0.55;
  background: radial-gradient(ellipse at center, oklch(0.72 0.08 76 / 0.16), transparent 72%);
}

.step-icon {
  width: 34px;
  height: 34px;
  left: 16px;
  top: 17px;
  background:
    radial-gradient(circle at 34% 24%, oklch(0.99 0.01 84 / 0.95), transparent 34%),
    linear-gradient(145deg, oklch(0.98 0.012 82 / 0.72), oklch(0.86 0.075 300 / 0.16));
  box-shadow:
    0 0 0 1px oklch(0.66 0.15 294 / 0.16),
    0 10px 24px oklch(0.5 0.12 294 / 0.11),
    inset 0 1px 0 oklch(0.99 0.01 84 / 0.58);
}

.step-icon svg {
  width: 23px;
  height: 23px;
}

.step-icon--release {
  width: 52px;
  height: 52px;
  box-shadow:
    0 0 0 8px oklch(0.82 0.12 70 / 0.12),
    0 0 36px oklch(0.82 0.15 62 / 0.42),
    inset 0 1px 0 oklch(0.99 0.01 84 / 0.72);
}

@media (min-width: 1281px) {
  .hero {
    min-height: 933px;
    background: oklch(0.986 0.012 78);
  }

  .hero-bg {
    background:
      radial-gradient(ellipse 58% 82% at 75% 36%, oklch(0.9 0.075 42 / 0.30), transparent 68%),
      radial-gradient(ellipse 50% 72% at 70% 78%, oklch(0.74 0.14 294 / 0.16), transparent 70%),
      linear-gradient(105deg, oklch(0.992 0.01 82) 0 33%, oklch(0.989 0.012 82 / 0.92) 50%, oklch(0.956 0.026 64) 100%);
  }

  .hero::after {
    background:
      radial-gradient(circle at 69% 28%, oklch(0.96 0.1 72 / 0.08), transparent 12%),
      radial-gradient(ellipse 30% 52% at 71% 56%, oklch(0.84 0.16 33 / 0.04), transparent 64%),
      linear-gradient(90deg, oklch(0.992 0.01 82 / 0.91) 0 28%, oklch(0.992 0.01 82 / 0.62) 38%, oklch(0.992 0.01 82 / 0.12) 51%, transparent 63%),
      radial-gradient(ellipse 42% 88% at 100% 92%, oklch(0.66 0.12 294 / 0.05), transparent 70%);
  }

  .top-nav:not(.scrolled) {
    padding-top: 54px;
    padding-left: 84px;
  }

  .hero-inner {
    width: 100%;
    min-height: 933px;
    grid-template-columns: 650px 1fr;
    column-gap: 0;
    padding: 126px 0 0 150px;
  }

  .hero-content {
    width: 650px;
    align-self: start;
    margin-top: 0;
    transform: none;
  }

  .hero-content::before {
    left: -95px;
    top: -66px;
    width: 610px;
    height: 820px;
    background:
      linear-gradient(90deg, oklch(0.992 0.01 82 / 0.62) 0 56%, oklch(0.992 0.01 82 / 0.26) 78%, transparent 100%),
      radial-gradient(ellipse at 28% 52%, oklch(0.992 0.01 82 / 0.62), oklch(0.992 0.01 82 / 0.24) 58%, transparent 82%);
    filter: blur(18px);
  }

  .hero-kicker {
    margin-bottom: 13px;
  }

  .hero-title {
    max-width: 650px;
    font-size: 7.25rem;
    line-height: 0.97;
    top: -8px;
    text-shadow: 0 18px 42px oklch(0.3 0.06 292 / 0.08);
  }

  .title-verified {
    font-size: 0.98em;
  }

  .title-spark {
    margin-left: 0.08em;
    margin-right: -0.04em;
    transform: translate(0.08em, -0.03em) scale(0.92);
  }

  .hero-lead {
    margin-top: 18px;
    font-size: 1.44rem;
  }

  .hero-sub {
    max-width: 475px;
    margin-top: 7px;
    font-size: 1.02rem;
    line-height: 1.55;
  }

  .hero-cta {
    margin-top: 31px;
    gap: 14px;
  }

  .btn {
    min-height: 66px;
    padding: 0 40px;
    border-radius: 13px;
    font-size: 1rem;
  }

  .hero-visual {
    position: absolute;
    left: 650px;
    top: 3px;
    width: 1021px;
    height: 930px;
    min-height: 930px;
    margin: 0;
    transform: none;
    transform-origin: top left;
  }

  .portal-glow {
    left: 10%;
    top: 1%;
    width: 88%;
    height: 96%;
    opacity: 0.46;
    filter: blur(34px);
  }

  .portal-artwork {
    left: -52%;
    top: -1.5%;
    width: 142.6%;
    opacity: 0.94;
    filter: saturate(1.025) contrast(1.01) brightness(1.018);
    mask-image:
      linear-gradient(90deg, transparent 0%, transparent 34%, black 43%, black 100%),
      radial-gradient(ellipse 78% 90% at 63% 50%, black 0 84%, transparent 100%),
      linear-gradient(180deg, black 0 91%, transparent 100%);
    -webkit-mask-image:
      linear-gradient(90deg, transparent 0%, transparent 34%, black 43%, black 100%),
      radial-gradient(ellipse 78% 90% at 63% 50%, black 0 84%, transparent 100%),
      linear-gradient(180deg, black 0 91%, transparent 100%);
  }

  .visual-main {
    left: 18.8%;
    top: 12.35%;
    height: 74.4%;
  }

  .hero-hand-atom {
    left: 16.25%;
    top: 25.65%;
    width: 142px;
    height: 142px;
  }

  .visual-shadow {
    left: 34%;
    top: 87.4%;
    width: 28%;
  }

  .orbit-lines {
    transform: none;
  }

  .orbit-lines--front path {
    stroke: oklch(0.80 0.1 76 / 0.18);
  }

  .step-card--review {
    right: 6.1%;
    top: 21.4%;
    width: 148px;
    min-height: 108px;
    padding: 16px 15px 14px 54px;
  }

  .step-card--sandbox {
    right: 6.0%;
    top: 39.4%;
    width: 178px;
    min-height: 124px;
    padding: 18px 16px 15px 60px;
  }

  .step-card--release {
    right: 7.5%;
    top: 58.5%;
    width: 225px;
    min-height: 220px;
  }

  .mimi-pill {
    left: 24.4%;
    top: 86.8%;
    width: 286px;
  }

  .hero-side-badge {
    left: 18px;
    top: 47%;
  }
}

@media (min-width: 1121px) and (max-width: 1280px) {
  .hero {
    height: 100svh;
    min-height: 720px;
    overflow: hidden;
    background: oklch(0.986 0.012 78);
  }

  .hero-bg {
    background:
      radial-gradient(ellipse 58% 82% at 75% 36%, oklch(0.9 0.075 42 / 0.30), transparent 68%),
      radial-gradient(ellipse 50% 72% at 70% 78%, oklch(0.74 0.14 294 / 0.16), transparent 70%),
      linear-gradient(105deg, oklch(0.992 0.01 82) 0 33%, oklch(0.989 0.012 82 / 0.92) 50%, oklch(0.956 0.026 64) 100%);
  }

  .hero::after {
    background:
      radial-gradient(circle at 69% 28%, oklch(0.96 0.1 72 / 0.08), transparent 12%),
      radial-gradient(ellipse 30% 52% at 71% 56%, oklch(0.84 0.16 33 / 0.04), transparent 64%),
      linear-gradient(90deg, oklch(0.992 0.01 82 / 0.91) 0 28%, oklch(0.992 0.01 82 / 0.62) 38%, oklch(0.992 0.01 82 / 0.12) 51%, transparent 63%),
      radial-gradient(ellipse 42% 88% at 100% 92%, oklch(0.66 0.12 294 / 0.05), transparent 70%);
  }

  .top-nav:not(.scrolled) {
    padding-top: 54px;
    padding-left: 66px;
  }

  .hero-inner {
    position: relative;
    display: block;
    width: 100%;
    min-height: 100%;
    padding: 0;
  }

  .hero-content {
    position: absolute;
    left: 126px;
    top: 132px;
    width: 520px;
    margin-top: 0;
    transform: none;
  }

  .hero-content::before {
    left: -98px;
    top: -62px;
    width: 560px;
    height: 690px;
    background:
      linear-gradient(90deg, oklch(0.992 0.01 82 / 0.62) 0 56%, oklch(0.992 0.01 82 / 0.26) 78%, transparent 100%),
      radial-gradient(ellipse at 28% 52%, oklch(0.992 0.01 82 / 0.62), oklch(0.992 0.01 82 / 0.24) 58%, transparent 82%);
    filter: blur(18px);
  }

  .hero-kicker {
    margin-bottom: 13px;
  }

  .hero-title {
    max-width: 520px;
    font-size: clamp(5.48rem, 7vw, 5.7rem);
    line-height: 0.97;
    top: -7px;
  }

  .title-spark {
    margin-left: 0.08em;
    margin-right: -0.04em;
    transform: translate(0.08em, -0.03em) scale(0.92);
  }

  .hero-lead {
    margin-top: 17px;
    font-size: 1.34rem;
  }

  .hero-sub {
    max-width: 430px;
    margin-top: 7px;
    font-size: 0.98rem;
    line-height: 1.54;
  }

  .hero-cta {
    gap: 14px;
    margin-top: 30px;
  }

  .btn {
    min-height: 60px;
    padding: 0 34px;
    border-radius: 13px;
  }

  .hero-visual {
    position: absolute;
    left: 39vw;
    top: 3px;
    width: 61.1vw;
    height: 55.7vw;
    min-height: 0;
    margin: 0;
    transform: none;
    transform-origin: top left;
  }

  .portal-glow {
    left: 10%;
    top: 1%;
    width: 88%;
    height: 96%;
    opacity: 0.46;
    filter: blur(34px);
  }

  .portal-artwork {
    left: -52%;
    top: -1.5%;
    width: 142.6%;
    opacity: 0.94;
    filter: saturate(1.025) contrast(1.01) brightness(1.018);
    mask-image:
      linear-gradient(90deg, transparent 0%, transparent 34%, black 43%, black 100%),
      radial-gradient(ellipse 78% 90% at 63% 50%, black 0 84%, transparent 100%),
      linear-gradient(180deg, black 0 91%, transparent 100%);
    -webkit-mask-image:
      linear-gradient(90deg, transparent 0%, transparent 34%, black 43%, black 100%),
      radial-gradient(ellipse 78% 90% at 63% 50%, black 0 84%, transparent 100%),
      linear-gradient(180deg, black 0 91%, transparent 100%);
  }

  .visual-main {
    left: 18.8%;
    top: 12.35%;
    height: 74.4%;
  }

  .hero-hand-atom {
    left: 16.25%;
    top: 25.65%;
    width: 142px;
    height: 142px;
  }

  .visual-shadow {
    left: 34%;
    top: 87.4%;
    width: 28%;
  }

  .orbit-lines {
    transform: none;
  }

  .step-card--review {
    right: 10.5%;
    top: 21.4%;
    width: 148px;
    min-height: 108px;
    padding: 16px 15px 14px 54px;
  }

  .step-card--sandbox {
    right: 10.3%;
    top: 39.4%;
    width: 178px;
    min-height: 124px;
    padding: 18px 16px 15px 60px;
  }

  .step-card--release {
    right: 10.7%;
    top: 58.5%;
    width: 225px;
    min-height: 220px;
  }

  .mimi-pill {
    left: 24.4%;
    top: 86.8%;
    width: 286px;
  }

  .hero-side-badge {
    left: 18px;
    top: 47%;
  }
}


@media (max-width: 1120px) {
  .hero {
    min-height: auto;
    overflow: hidden;
  }

  .hero-inner {
    padding-bottom: 0;
  }

  .hero-cta .btn {
    border-radius: 14px;
  }
}


.nav-menu-btn {
  min-width: 44px;
  min-height: 44px;
}