:root {
  --brand-black: #0a0a0a;
  --brand-red: #c01824;
  --brand-gray: #f3f3f3;
  --text-dark: #111111;
  --text-light: #ffffff;
  --max-width: 1200px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Open Sans", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-dark);
  background: #ffffff;
}

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

a:hover {
  color: var(--brand-red);
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  background: var(--brand-black);
  color: var(--text-light);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
  flex-wrap: wrap;
}

.logo {
  display: inline-flex;
  align-items: center;
}

.logo img {
  height: 48px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
}

.main-nav a {
  white-space: nowrap;
}

.app-hero {
  background: radial-gradient(circle at top left, rgba(192, 24, 36, 0.15), transparent 55%),
    linear-gradient(120deg, #0a0a0a 0%, #1a1a1a 45%, #101010 100%);
  color: var(--text-light);
  padding: 80px 0 60px;
}

.app-hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  align-items: center;
}

.app-hero-content .eyebrow {
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.app-hero-content h1 {
  font-family: "Oswald", "Open Sans", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: clamp(2.2rem, 3vw, 3.4rem);
  margin: 0 0 16px;
  line-height: 1.1;
}

.app-hero-content p {
  line-height: 1.7;
  margin: 0 0 16px;
}

.tag-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 18px 0 24px;
}

.tag {
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.primary-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  background: #ffffff;
  color: #000000;
}

.primary-btn:hover {
  background: transparent;
  color: #ffffff;
}

.screenshot-stack {
  position: relative;
  display: grid;
  place-items: center;
}

.screenshot-stack img {
  border-radius: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

.screenshot-stack .shot-secondary {
  position: absolute;
  width: 70%;
  right: -10%;
  bottom: -12%;
  transform: rotate(4deg);
}

.screenshot-stack .shot-tertiary {
  position: absolute;
  width: 55%;
  left: -5%;
  bottom: 10%;
  transform: rotate(-6deg);
  opacity: 0.9;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-family: "Oswald", "Open Sans", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 2rem;
  margin: 0 0 12px;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 36px;
  color: #444444;
  line-height: 1.7;
}

.screens-scroll {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(200px, 240px);
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 10px;
  scroll-snap-type: x mandatory;
}

.screens-scroll img {
  border-radius: 18px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  scroll-snap-align: start;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.feature-card {
  background: #ffffff;
  border: 1px solid #e6e6e6;
  padding: 24px;
  border-radius: 16px;
  min-height: 100%;
}

.feature-card h3 {
  margin: 0 0 10px;
  text-transform: uppercase;
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.feature-card p {
  margin: 0;
  line-height: 1.6;
  color: #444444;
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.step-card {
  background: var(--brand-gray);
  border-radius: 16px;
  padding: 24px;
}

.step-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--brand-black);
  color: #ffffff;
  font-weight: 700;
  margin-bottom: 12px;
}

.notice {
  background: #ffffff;
  border: 1px solid #e2e2e2;
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  max-width: 820px;
  margin: 40px auto 0;
  line-height: 1.7;
}

.site-footer {
  background: #000000;
  color: #ffffff;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px;
  padding: 60px 0 40px;
}

.footer-grid h4 {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.footer-grid p,
.footer-grid a {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-note {
  background: #0a0a0a;
  padding: 20px 0 30px;
  font-size: 0.75rem;
  line-height: 1.6;
}

.footer-note a {
  color: #ffffff;
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 20px 0 30px;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.legal-page {
  padding: 80px 0;
}

.legal-page h1 {
  font-family: "Oswald", "Open Sans", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.legal-page h2 {
  margin-top: 28px;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 1.1rem;
}

.legal-page p,
.legal-page li {
  line-height: 1.7;
  margin-bottom: 16px;
}

.legal-page ul {
  padding-left: 18px;
}

@media (max-width: 1000px) {
  .app-hero-grid,
  .features-grid,
  .how-steps,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .screenshot-stack .shot-secondary,
  .screenshot-stack .shot-tertiary {
    position: static;
    width: 80%;
    margin-top: 18px;
    transform: none;
  }
}

@media (max-width: 700px) {
  .nav-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .main-nav {
    gap: 12px;
  }

  .app-hero {
    padding: 60px 0 40px;
  }
}