:root {
  --bg: #ffffff;
  --ink: #070707;
  --muted: #666b73;
  --line: #e7e9e4;
  --lime: #b9ff39;
  --lime-strong: #94f000;
  --yellow: #ffe266;
  --coral: #ff7e67;
  --cyan: #74dcff;
  --soft: #f5f7ef;
  --shadow: 0 24px 70px rgba(17, 24, 10, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.4;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 58px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(231, 233, 228, 0.72);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 900;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border: 4px solid var(--ink);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, var(--lime) 0 36%, transparent 38% 100%);
  box-shadow: 6px 0 0 var(--yellow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.nav-links a,
.site-footer a {
  transition: color 180ms ease;
}

.nav-links a:hover,
.site-footer a:hover {
  color: var(--ink);
}

.header-download {
  display: inline-grid;
  min-width: 54px;
  height: 42px;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--lime);
  font-weight: 900;
  box-shadow: 4px 4px 0 var(--ink);
}

.section-band {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.85fr);
  align-items: center;
  min-height: calc(100vh - 78px);
  padding: clamp(54px, 8vw, 96px) 0 48px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto 3% 5% auto;
  width: 52%;
  height: 76%;
  background:
    linear-gradient(135deg, rgba(185, 255, 57, 0.9), rgba(255, 226, 102, 0.68)),
    repeating-linear-gradient(90deg, transparent 0 34px, rgba(7, 7, 7, 0.08) 35px 36px);
  border: 2px solid var(--ink);
  border-radius: 8px;
  transform: rotate(-2deg);
  z-index: -1;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 690px;
  margin-bottom: 24px;
  font-size: clamp(54px, 8.7vw, 124px);
  line-height: 0.9;
  font-weight: 900;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(34px, 5vw, 68px);
  line-height: 0.96;
  font-weight: 900;
}

h3 {
  margin-bottom: 10px;
  font-size: 25px;
  line-height: 1.05;
}

.hero-text {
  max-width: 560px;
  margin-bottom: 30px;
  color: #373b3f;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 700;
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 22px;
  border-radius: 999px;
  border: 2px solid var(--ink);
  font-weight: 900;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button:focus-visible,
.strip-chip:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.button-primary {
  background: var(--lime);
  box-shadow: 5px 5px 0 var(--ink);
}

.button-primary:hover {
  box-shadow: 7px 7px 0 var(--ink);
}

.button-secondary {
  background: #fff;
}

.button-icon {
  display: inline-grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  line-height: 1;
}

.pulse-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.strip-chip {
  min-height: 42px;
  padding: 0 16px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 900;
  transition:
    background 180ms ease,
    transform 180ms ease;
}

.strip-chip:hover,
.strip-chip.active {
  background: var(--yellow);
  transform: translateY(-1px);
}

.hero-visual {
  position: relative;
  display: grid;
  min-height: 680px;
  place-items: center;
}

.phone-shell {
  position: relative;
  width: min(342px, 68vw);
  aspect-ratio: 0.49;
  padding: 13px;
  border: 8px solid #101010;
  border-radius: 42px;
  background: #101010;
  box-shadow: var(--shadow);
  transform: rotate(4deg);
}

.phone-shell::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 50%;
  z-index: 2;
  width: 78px;
  height: 21px;
  border-radius: 999px;
  background: #101010;
  transform: translateX(-50%);
}

.phone-shell img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: top center;
  border-radius: 32px;
}

.phone-bubble {
  position: absolute;
  display: grid;
  min-height: 38px;
  place-items: center;
  padding: 0 14px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: #fff;
  font-size: 13px;
  font-weight: 900;
  box-shadow: 4px 4px 0 rgba(7, 7, 7, 0.22);
}

.bubble-one {
  top: 28%;
  right: -32px;
  background: var(--lime);
}

.bubble-two {
  bottom: 30%;
  left: -40px;
  background: var(--yellow);
}

.floating-card {
  position: absolute;
  z-index: 2;
  width: 212px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: #fff;
  box-shadow: 9px 9px 0 rgba(7, 7, 7, 0.12);
}

.status-card {
  top: 16%;
  left: 2%;
  display: grid;
  gap: 4px;
  padding: 16px;
}

.status-card span:last-child,
.idea-card small,
.idea-card span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.status-dot {
  width: 12px;
  height: 12px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--lime-strong);
}

.idea-card {
  right: 0;
  bottom: 18%;
  padding: 16px;
  background: var(--yellow);
}

.idea-card strong {
  display: block;
  margin-top: 8px;
}

.mini-proof {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 86px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  overflow: hidden;
  background: var(--ink);
}

.mini-proof div {
  display: grid;
  gap: 6px;
  min-height: 112px;
  padding: 24px;
  background: #fff;
}

.mini-proof strong {
  font-size: 20px;
  font-weight: 900;
}

.mini-proof span,
.steps p,
.feature-card p,
.download p,
.qr-panel span {
  color: var(--muted);
  font-weight: 700;
}

.how {
  padding: 86px clamp(18px, 4vw, 54px);
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--soft);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 38px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.steps article,
.feature-card,
.qr-panel {
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: #fff;
}

.steps article {
  display: grid;
  align-content: start;
  min-height: 260px;
  padding: 22px;
}

.steps span {
  display: grid;
  width: 44px;
  height: 44px;
  margin-bottom: 28px;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--lime);
  font-weight: 900;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  width: min(1180px, calc(100% - 32px));
  margin: 96px auto;
}

.feature-card {
  min-height: 330px;
  padding: clamp(24px, 4vw, 42px);
}

.feature-card h2 {
  font-size: clamp(32px, 4vw, 54px);
}

.card-kicker {
  width: fit-content;
  margin-bottom: 42px;
  padding: 8px 12px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: #fff;
  color: var(--ink) !important;
  font-size: 13px;
  font-weight: 900 !important;
}

.feature-card.lime {
  background: var(--lime);
}

.feature-card.yellow {
  background: var(--yellow);
}

.feature-card.coral {
  background: var(--coral);
}

.feature-card.cyan {
  background: var(--cyan);
}

.feature-card.coral p,
.feature-card.coral h2 {
  color: #16110f;
}

.download {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: clamp(24px, 5vw, 70px);
  align-items: center;
  margin-bottom: 74px;
  padding: clamp(36px, 5vw, 64px);
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: #111;
  color: #fff;
}

.download p {
  max-width: 700px;
  color: #c9c9c9;
  font-size: 18px;
}

.file-meta {
  color: #c9c9c9;
  font-weight: 800;
}

.qr-panel {
  display: grid;
  justify-items: center;
  gap: 18px;
  padding: 24px;
  color: var(--ink);
  text-align: center;
}

.qr-panel img {
  width: 170px;
  height: 170px;
  image-rendering: crisp-edges;
}

.qr-panel div {
  display: grid;
  gap: 6px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(20px, 4vw, 58px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-weight: 900;
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero::before {
    inset: auto -12% 6% auto;
    width: 82%;
    height: 50%;
  }

  .hero-visual {
    min-height: 590px;
    margin-top: 22px;
  }

  .floating-card {
    width: 190px;
  }

  .mini-proof,
  .steps,
  .feature-grid,
  .download {
    grid-template-columns: 1fr;
  }

  .download {
    text-align: left;
  }
}

@media (max-width: 700px) {
  .site-header {
    padding: 14px 16px;
  }

  .nav-links {
    display: none;
  }

  .hero {
    width: min(100% - 24px, 1180px);
    padding-top: 42px;
  }

  h1 {
    font-size: clamp(50px, 17vw, 74px);
  }

  h2 {
    font-size: clamp(34px, 11vw, 48px);
  }

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

  .hero-actions,
  .download-actions,
  .pulse-strip {
    align-items: stretch;
  }

  .button,
  .strip-chip {
    width: 100%;
  }

  .hero-visual {
    min-height: 520px;
  }

  .phone-shell {
    width: min(272px, 78vw);
    border-width: 7px;
    border-radius: 38px;
  }

  .floating-card {
    width: 168px;
    padding: 12px;
    font-size: 13px;
  }

  .status-card {
    top: 10%;
    left: 0;
  }

  .idea-card {
    right: 0;
    bottom: 8%;
  }

  .mini-proof {
    width: min(100% - 24px, 1180px);
    margin-bottom: 54px;
  }

  .how,
  .download {
    width: min(100% - 24px, 1180px);
    padding: 32px 18px;
  }

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

  .feature-grid {
    width: min(100% - 24px, 1180px);
    margin: 64px auto;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}