@font-face {
  font-family: "Saira Stencil One";
  src:
    url("assets/fonts/SairaStencilOne-Latin.woff2") format("woff2"),
    url("assets/fonts/SairaStencilOne-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

:root {
  --ink: #070809;
  --paper: #f4f4f2;
  --muted: #a9acb1;
  --line: rgba(255, 255, 255, 0.15);
  --display: "Saira Stencil One", Impact, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* { box-sizing: border-box; }

html {
  background: var(--ink);
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
}

button, a { font: inherit; }

.lander {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 78% 14%, rgba(127, 144, 158, 0.2), transparent 30%),
    radial-gradient(circle at 40% 115%, rgba(74, 82, 89, 0.15), transparent 44%),
    linear-gradient(117deg, #0d0f11 0%, #070809 54%, #050606 100%);
}

.grain {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0,
    rgba(255, 255, 255, 0.018) 1px,
    transparent 2px,
    transparent 7px
  );
  mask-image: linear-gradient(to right, transparent, black 55%, black);
}

.hero {
  width: min(100%, 1440px);
  min-height: 100svh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 54%) minmax(420px, 46%);
  padding-inline: clamp(28px, 5vw, 72px);
}

.copy-column {
  position: relative;
  z-index: 4;
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: clamp(28px, 5.3vh, 58px) 0 24px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 18px;
}

.wordmark {
  width: clamp(174px, 15vw, 220px);
  height: auto;
  filter: invert(1);
}

.hero-copy {
  width: min(100%, 720px);
  margin: auto 0;
  padding-block: 36px 22px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  color: #c1c6ca;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 38px;
  height: 2px;
  content: "";
  background: linear-gradient(to right, #fff, #77828a);
}

h1 {
  max-width: 760px;
  margin: 0;
  color: #aeb4b8;
  font-family: var(--display);
  font-size: clamp(60px, 6.65vw, 102px);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 0.92;
  text-transform: uppercase;
  font-synthesis: none;
}

h1 span {
  display: block;
  color: #f8f8f6;
}

.intro {
  max-width: 650px;
  margin: 24px 0 0;
  color: #c0c2c5;
  font-size: clamp(18px, 1.6vw, 23px);
  letter-spacing: -0.02em;
  line-height: 1.45;
}

.feature-list {
  display: grid;
  gap: 14px;
  max-width: 700px;
  margin: clamp(28px, 4vh, 42px) 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  align-items: start;
  gap: 14px;
}

.feature-marker {
  display: grid;
  width: 42px;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 48%), #111417;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.55);
  color: #e9eaeb;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.feature-list strong,
.feature-list small { display: block; }

.feature-list strong {
  margin: 1px 0 4px;
  color: #f5f5f3;
  font-family: var(--display);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.015em;
  line-height: 1.15;
  text-transform: uppercase;
  font-synthesis: none;
}

.feature-list small {
  color: #9fa2a7;
  font-size: 14px;
  line-height: 1.42;
}

.cta-row {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: clamp(28px, 4vh, 44px);
}

.store-badge {
  display: grid;
  min-width: 186px;
  padding: 9px 21px 10px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 10px;
  background: #f4f4f2;
  color: #090a0b;
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.35);
}

.store-badge span {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.1;
  text-transform: uppercase;
}

.store-badge strong {
  font-size: 20px;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.cta-row p {
  margin: 0;
  color: #777d82;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  text-transform: uppercase;
}

.cta-row p span { display: block; }

.site-footer {
  display: flex;
  gap: 20px;
  align-items: center;
  color: #676b6f;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-footer a {
  color: #90959a;
  text-underline-offset: 4px;
}

.site-footer a:hover,
.site-footer a:focus-visible { color: #fff; }

.visual-column {
  position: relative;
  min-width: 0;
  min-height: 780px;
}

.visual-column::before {
  position: absolute;
  z-index: -1;
  top: 0;
  bottom: 0;
  left: 14%;
  width: 1px;
  content: "";
  background: linear-gradient(transparent, rgba(176, 190, 199, 0.35) 18%, rgba(87, 97, 104, 0.12) 74%, transparent);
}

.steel-halo {
  position: absolute;
  top: 8%;
  right: -12%;
  width: 88%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 50%;
  background:
    repeating-linear-gradient(110deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 5px),
    radial-gradient(circle at 38% 35%, rgba(155, 169, 179, 0.2), rgba(31, 36, 40, 0.06) 52%, transparent 70%);
  box-shadow: inset 0 0 80px rgba(255, 255, 255, 0.035);
  opacity: 0.78;
}

.weight-stamp {
  position: absolute;
  z-index: 0;
  top: 7%;
  right: -2%;
  margin: 0;
  color: rgba(255, 255, 255, 0.055);
  font-family: var(--display);
  font-size: clamp(104px, 13vw, 198px);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1;
  text-transform: uppercase;
  font-synthesis: none;
}

.weight-stamp span {
  margin-left: 4px;
  font-family: var(--display);
  font-size: 0.18em;
  letter-spacing: 0.05em;
}

.phone {
  position: absolute;
  overflow: hidden;
  aspect-ratio: 1206 / 2622;
  padding: 7px;
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 13.5% / 6.25%;
  background: linear-gradient(105deg, #252a2e 0%, #8a9399 18%, #21262a 43%, #a9b0b4 61%, #2b3034 100%);
  box-shadow:
    0 30px 90px rgba(0, 0, 0, 0.72),
    inset 0 0 0 2px rgba(0, 0, 0, 0.72),
    inset 0 0 0 3px rgba(255, 255, 255, 0.09);
}

.phone img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 12.3% / 5.7%;
  object-fit: cover;
  transition: opacity 120ms ease;
}

.phone img.switching { opacity: 0.3; }

.phone-front {
  z-index: 2;
  top: 7.5%;
  right: 1%;
  width: min(25.8vw, 352px);
  animation: phone-enter 700ms cubic-bezier(0.22, 0.8, 0.32, 1) both;
}

.phone-back {
  z-index: 1;
  top: 24%;
  left: 1%;
  width: min(20.5vw, 280px);
  transform: rotate(-6deg);
  filter: saturate(0.28) brightness(0.56);
  opacity: 0.72;
}

.screen-controls {
  position: absolute;
  z-index: 3;
  right: 0;
  bottom: 36px;
  display: flex;
  width: min(100%, 422px);
  gap: 8px;
  justify-content: flex-end;
}

.screen-controls button {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 11px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(10, 12, 14, 0.82);
  color: #7f858a;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.screen-controls button span {
  color: #bcc1c4;
  font-weight: 700;
}

.screen-controls button:hover,
.screen-controls button:focus-visible,
.screen-controls button.active {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(40, 45, 49, 0.92);
  color: #f2f2ef;
  outline: none;
}

@keyframes phone-enter {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1050px) {
  .hero {
    grid-template-columns: minmax(0, 56%) minmax(360px, 44%);
    padding-inline: 34px;
  }

  .hero-copy { padding-right: 20px; }
  .phone-front { width: min(31vw, 330px); }
  .phone-back { left: 0; width: min(24vw, 254px); }

  .screen-controls button {
    width: 38px;
    justify-content: center;
    overflow: hidden;
    white-space: nowrap;
  }

  .screen-controls button span { flex: 0 0 18px; }
}

@media (max-width: 760px) {
  .lander { overflow: hidden visible; }
  .grain { position: absolute; }

  .hero {
    display: block;
    padding-inline: 22px;
  }

  .copy-column {
    min-height: auto;
    padding-top: 28px;
  }

  .brand-lockup { gap: 13px; }
  .hero-copy {
    margin: 0;
    padding: 74px 0 24px;
  }

  h1 { font-size: clamp(57px, 18vw, 78px); }

  .intro {
    max-width: 560px;
    margin-top: 22px;
    font-size: 18px;
  }

  .feature-list { margin-top: 32px; }
  .cta-row { align-items: flex-start; }
  .site-footer { display: none; }

  .visual-column {
    min-height: 710px;
    margin-top: 12px;
  }

  .visual-column::before { left: 5%; }

  .steel-halo {
    top: 5%;
    right: -44%;
    width: 130%;
  }

  .weight-stamp {
    top: 1%;
    right: -4%;
    font-size: 34vw;
  }

  .phone-front {
    top: 5%;
    right: 2%;
    width: min(72vw, 332px);
  }

  .phone-back {
    top: 23%;
    left: -8%;
    width: min(56vw, 258px);
  }

  .screen-controls {
    right: 2%;
    bottom: 18px;
  }

  .screen-controls button { width: auto; }
}

@media (max-width: 430px) {
  .hero-copy { padding-top: 58px; }
  .cta-row { gap: 14px; }

  .store-badge {
    min-width: 164px;
    padding-inline: 17px;
  }

  .screen-controls button {
    width: 40px;
    justify-content: center;
    overflow: hidden;
    white-space: nowrap;
  }
}

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