:root {
  color-scheme: dark;
  --ink: #080c0b;
  --deep: #111b18;
  --panel: rgba(12, 20, 18, 0.84);
  --paper: #f4f1e8;
  --mist: #cad8d2;
  --muted: #8fa49c;
  --line: rgba(244, 241, 232, 0.16);
  --teal: #41c7a4;
  --coral: #ff794d;
  --gold: #d7b46a;
  --blue: #6da9d8;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 54px);
  background: linear-gradient(180deg, rgba(8, 12, 11, 0.92), rgba(8, 12, 11, 0));
}

.brand,
nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand {
  font-weight: 850;
  letter-spacing: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(215, 180, 106, 0.42);
  border-radius: 8px;
  background: rgba(17, 27, 24, 0.9);
  color: var(--gold);
  font-size: 13px;
}

nav {
  color: var(--mist);
  font-size: 14px;
}

nav a {
  padding: 9px 10px;
}

.login-link,
.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 8px;
  font-weight: 800;
}

.login-link {
  border: 1px solid var(--line);
  background: rgba(244, 241, 232, 0.08);
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  padding: 120px clamp(18px, 6vw, 84px) 72px;
  background-image: url("assets/pool-command-hero.png");
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 12, 11, 0.9), rgba(8, 12, 11, 0.54) 48%, rgba(8, 12, 11, 0.18)),
    linear-gradient(0deg, rgba(8, 12, 11, 0.86), rgba(8, 12, 11, 0.02) 48%);
}

.hero-copy {
  position: relative;
  width: min(760px, 100%);
  display: grid;
  gap: 18px;
}

.eyebrow {
  margin: 0;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1 {
  font-size: clamp(54px, 8vw, 118px);
  line-height: 0.92;
  letter-spacing: 0;
}

.hero-text {
  max-width: 620px;
  color: var(--mist);
  font-size: clamp(18px, 2.2vw, 25px);
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.primary-action,
.secondary-action {
  padding: 0 18px;
}

.primary-action {
  background: var(--coral);
  color: #17110d;
}

.secondary-action {
  border: 1px solid var(--line);
  background: rgba(244, 241, 232, 0.1);
  color: var(--paper);
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}

.signal-strip div {
  min-height: 112px;
  display: grid;
  align-content: center;
  gap: 6px;
  padding: 18px clamp(16px, 3vw, 34px);
  background: #101815;
}

.signal-strip strong {
  color: var(--paper);
  font-size: 20px;
}

.signal-strip span,
.service-grid p,
.process-band span,
footer {
  color: var(--muted);
}

.section-shell,
.process-band {
  padding: 72px clamp(18px, 6vw, 84px);
}

.section-heading {
  max-width: 760px;
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

h2 {
  font-size: clamp(32px, 4vw, 58px);
  line-height: 1.02;
  letter-spacing: 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.service-grid article {
  min-height: 260px;
  display: grid;
  align-content: start;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(18, 30, 26, 0.96), rgba(13, 19, 18, 0.94));
  box-shadow: var(--shadow);
}

.service-grid span {
  color: var(--gold);
  font-weight: 900;
}

h3 {
  font-size: 24px;
  line-height: 1.1;
}

.process-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 40px;
  align-items: start;
  background: #111816;
}

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

li {
  display: grid;
  gap: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(244, 241, 232, 0.045);
}

li strong {
  color: var(--paper);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px clamp(18px, 6vw, 84px);
  border-top: 1px solid var(--line);
}

footer span {
  color: var(--paper);
  font-weight: 850;
}

@media (max-width: 820px) {
  .site-header,
  nav,
  .hero-actions,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header {
    position: absolute;
    background: rgba(8, 12, 11, 0.7);
  }

  nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  nav a {
    padding: 8px 0;
  }

  .login-link {
    padding: 0 10px;
  }

  .hero {
    min-height: 88vh;
    padding-top: 190px;
  }

  .signal-strip,
  .service-grid,
  .process-band {
    grid-template-columns: minmax(0, 1fr);
  }
}