:root {
  color-scheme: light;
  --ink: #102826;
  --ink-soft: #24423f;
  --mist: #eef4f1;
  --paper: #fbfaf6;
  --blue: #246c9f;
  --coral: #e65f4f;
  --green: #2f8f75;
  --gold: #d59d37;
  --line: rgba(16, 40, 38, 0.16);
  --shadow: 0 24px 60px rgba(16, 40, 38, 0.18);
  --radius: 8px;
  --header-height: 76px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(18px, 4vw, 56px);
  color: #fff;
  transition:
    background 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(251, 250, 246, 0.94);
  color: var(--ink);
  box-shadow: 0 1px 0 var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  line-height: 1;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 0.78rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 36px);
  font-weight: 700;
  font-size: 0.94rem;
}

.site-nav a {
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 160ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid currentColor;
  border-radius: 50%;
  background: transparent;
  color: inherit;
  padding: 0;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: min(760px, 92vh);
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
  background: var(--ink);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 18, 18, 0.84) 0%, rgba(5, 18, 18, 0.52) 38%, rgba(5, 18, 18, 0.08) 76%),
    linear-gradient(0deg, rgba(5, 18, 18, 0.5) 0%, transparent 46%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 36px));
  margin: 0 auto;
  padding: calc(var(--header-height) + 80px) 0 96px;
}

.eyebrow {
  margin: 0 0 16px;
  color: #f3c76f;
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.eyebrow.dark {
  color: var(--coral);
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.04;
  letter-spacing: 0;
}

h1 {
  max-width: 680px;
  font-size: clamp(4.2rem, 13vw, 9rem);
}

h2 {
  font-size: clamp(2.1rem, 5vw, 4.6rem);
}

h3 {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.hero-copy {
  max-width: 660px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1.08rem, 2vw, 1.38rem);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 13px 18px;
  font-weight: 900;
  line-height: 1.15;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

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

.button-primary {
  background: var(--coral);
  color: #fff;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.72);
  color: #fff;
}

.button-primary.light {
  background: #fff;
  color: var(--ink);
}

.button-secondary.light {
  border-color: rgba(255, 255, 255, 0.56);
}

.section,
.intro-band,
.contact-section {
  padding: clamp(64px, 10vw, 128px) 0;
}

.section-inner {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.intro-band {
  background: var(--mist);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
  gap: clamp(28px, 7vw, 92px);
  align-items: start;
}

.intro-grid p:last-child,
.host-panel p {
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(1.04rem, 1.8vw, 1.24rem);
}

.section-heading {
  max-width: 760px;
  margin-bottom: clamp(34px, 6vw, 68px);
}

.section-heading.compact {
  max-width: 860px;
}

.product-feature {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.72fr);
  gap: clamp(32px, 7vw, 96px);
  align-items: center;
}

.product-copy p {
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.product-tag {
  display: inline-flex;
  margin-bottom: 18px;
  border: 1px solid rgba(36, 108, 159, 0.28);
  border-radius: 999px;
  padding: 5px 10px;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--ink);
  font-weight: 700;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 0.5em;
  left: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: inset 0 0 0 4px var(--paper);
}

.phone-shell {
  width: min(100%, 360px);
  margin-inline: auto;
  border: 1px solid rgba(16, 40, 38, 0.22);
  border-radius: 34px;
  padding: 14px;
  background: #122321;
  box-shadow: var(--shadow);
}

.phone-top {
  width: 86px;
  height: 5px;
  margin: 2px auto 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.34);
}

.app-screen {
  min-height: 560px;
  border-radius: 24px;
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(238, 244, 241, 0.98)),
    var(--mist);
}

.app-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  font-weight: 900;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--green);
}

.plan-card {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 13px;
  align-items: center;
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: #fff;
}

.plan-card.active {
  border-color: rgba(230, 95, 79, 0.5);
  box-shadow: 0 14px 30px rgba(230, 95, 79, 0.12);
}

.plan-card strong {
  display: block;
  line-height: 1.2;
}

.plan-card p {
  margin: 4px 0 0;
  color: rgba(16, 40, 38, 0.68);
  font-size: 0.9rem;
  line-height: 1.3;
}

.plan-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--mist);
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 900;
}

.mock-button {
  width: 100%;
  min-height: 48px;
  margin-top: 18px;
  border: 0;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  font-weight: 900;
}

.cards {
  display: grid;
  gap: 18px;
}

.three-up {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: clamp(42px, 7vw, 86px);
}

.card,
.principles article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: #fff;
}

.card-icon {
  display: inline-block;
  margin-bottom: 32px;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 900;
}

.card p,
.principles p {
  margin: 12px 0 0;
  color: var(--ink-soft);
}

.hosts-section {
  background: #e9f0ec;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(300px, 1fr);
  gap: clamp(26px, 7vw, 90px);
  align-items: start;
}

.host-panel {
  border-left: 4px solid var(--gold);
  padding-left: clamp(22px, 4vw, 42px);
}

.host-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.host-list span {
  border: 1px solid rgba(16, 40, 38, 0.18);
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.62);
  font-weight: 800;
  font-size: 0.9rem;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.contact-section {
  background: var(--ink);
  color: #fff;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: end;
}

.contact-grid h2 {
  max-width: 820px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(18px, 4vw, 56px);
  background: #071817;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 700;
}

.site-footer a {
  color: #fff;
}

@media (max-width: 860px) {
  .nav-toggle {
    display: block;
    position: relative;
    z-index: 31;
  }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 30;
    display: grid;
    align-content: center;
    justify-items: center;
    gap: 28px;
    background: var(--paper);
    color: var(--ink);
    font-size: 1.6rem;
    transform: translateY(-100%);
    transition: transform 220ms ease;
  }

  .site-header.is-open .site-nav {
    transform: translateY(0);
  }

  .hero {
    min-height: 760px;
  }

  .hero-image {
    object-position: 56% center;
  }

  .hero-shade {
    background:
      linear-gradient(180deg, rgba(5, 18, 18, 0.56) 0%, rgba(5, 18, 18, 0.68) 52%, rgba(5, 18, 18, 0.88) 100%),
      linear-gradient(90deg, rgba(5, 18, 18, 0.64), transparent);
  }

  .hero-content {
    padding-bottom: 64px;
  }

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

  .three-up,
  .principles {
    grid-template-columns: 1fr;
  }

  .contact-actions {
    margin-top: 8px;
  }
}

@media (max-width: 520px) {
  :root {
    --header-height: 68px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .hero {
    min-height: 720px;
  }

  .hero-content,
  .section-inner {
    width: min(100% - 28px, 1180px);
  }

  h1 {
    font-size: clamp(3.4rem, 18vw, 4.8rem);
  }

  .button {
    width: 100%;
  }

  .app-screen {
    min-height: 510px;
    padding: 16px;
  }

  .site-footer {
    flex-direction: column;
  }
}