:root {
  --bg-main: #181b1f;
  --bg-alt: #121519;
  --bg-panel: #1d2126;
  --text: #f5f6f7;
  --muted: #aeb5bc;
  --line: #32383f;
  --accent: #c9d752;
  --accent-hover: #d7e46a;
  --header-bg: rgba(18, 21, 25, 0.96);
  --font-heading: "Ubuntu", system-ui, sans-serif;
  --font-body: "Roboto", system-ui, sans-serif;
  --container: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-main);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, textarea { font: inherit; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 999;
  padding: .75rem 1rem;
  background: var(--accent);
  color: #111;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.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;
}

.container {
  width: min(calc(100% - 3rem), var(--container));
  margin-inline: auto;
}
.narrow { max-width: 820px; }
.section { padding-block: 7rem; }
.section-main { background: var(--bg-main); }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-alt); }

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: transparent;
  transition: background-color .25s ease, border-color .25s ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: var(--header-bg);
  border-color: rgba(255,255,255,.06);
}
.header-inner {
  width: min(calc(100% - 3rem), var(--container));
  min-height: 88px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  aspect-ratio: 1;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--accent);
  color: #111;
  font-family: var(--font-heading);
  font-weight: 700;
}
.brand-name {
  font-family: var(--font-heading);
  letter-spacing: .03em;
  white-space: nowrap;
}
.brand-name strong { font-weight: 700; }
.brand-name b { color: var(--accent); }
.brand-name em { color: #c4c8cc; font-style: normal; font-weight: 400; }

.primary-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.primary-nav a {
  text-decoration: none;
  font-size: .94rem;
  font-weight: 500;
}
.primary-nav a:not(.button):hover,
.primary-nav a:not(.button):focus-visible { color: var(--accent); }

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 99px;
  background: var(--accent);
  padding: 12px;
}
.menu-toggle span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 4px 0;
  background: #111;
}

.hero {
  min-height: clamp(620px, 75svh, 860px);
  display: grid;
  align-items: center;
  padding-top: 88px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, .95fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 8rem);
}
.hero-copy { padding-block: 6rem; }
.eyebrow,
.section-kicker {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .16em;
}
h1, h2, h3 {
  margin-top: 0;
  font-family: var(--font-heading);
  line-height: 1.08;
}
h1 {
  position: relative;
  margin-bottom: 1.5rem;
  font-size: clamp(2.55rem, 5vw, 5.4rem);
  letter-spacing: -.035em;
  max-width: 900px;
}
h2 {
  font-size: clamp(2rem, 3.6vw, 4rem);
  letter-spacing: -.025em;
}
h3 { font-size: 1.35rem; }
.title-square {
  display: inline-block;
  width: .28em;
  aspect-ratio: 1;
  margin-right: .22em;
  background: var(--accent);
  transform: translateY(-.08em);
}
.hero-lead,
.lead {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.4vw, 1.24rem);
  max-width: 720px;
}
.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 2.2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: .8rem 1.4rem;
  border: 1px solid var(--accent);
  border-radius: 99px;
  background: var(--accent);
  color: #111;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
  transition: background-color .2s ease, border-color .2s ease, transform .2s ease;
}
.button:hover,
.button:focus-visible {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
}
.button-small {
  min-height: 42px;
  padding: .55rem 1rem;
}
.text-link {
  color: var(--text);
  text-decoration-color: var(--accent);
  text-underline-offset: .25em;
  text-decoration-thickness: 2px;
}
.text-link:hover,
.text-link:focus-visible { color: var(--accent); }

.hero-visual {
  position: relative;
  min-height: 520px;
  isolation: isolate;
}
.monolith {
  position: absolute;
  background: linear-gradient(145deg, #23282e, #0f1215 72%);
  border: 1px solid rgba(255,255,255,.06);
  box-shadow: 0 40px 100px rgba(0,0,0,.45);
}
.monolith-back {
  inset: 11% 22% 11% 8%;
  transform: perspective(1000px) rotateY(8deg) rotateZ(-2deg);
}
.monolith-front {
  inset: 4% 4% 4% 48%;
  transform: perspective(1000px) rotateY(-6deg) rotateZ(1.5deg);
}
.light-slit {
  position: absolute;
  z-index: 2;
  top: 8%;
  bottom: 8%;
  left: 49%;
  width: 9px;
  background: var(--accent);
  box-shadow: 0 0 28px rgba(201,215,82,.32);
  transform: rotate(1deg);
}

.intro { padding-block: 6rem; text-align: center; }
.split-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
}
.split-grid.reverse { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.feature-card {
  min-height: 220px;
  padding: 2rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: var(--bg-panel);
}
.feature-number {
  display: inline-block;
  margin-bottom: 2.6rem;
  color: var(--accent);
  font-family: var(--font-heading);
  font-weight: 700;
}
.feature-card p { color: var(--muted); }

.diagnostic-panel {
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--bg-panel);
}
.diagnostic-line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  border-bottom: 1px solid var(--line);
}
.diagnostic-line:last-child { border-bottom: 0; }
.diagnostic-line strong { color: var(--accent); }
.check-list {
  margin: 1.8rem 0 2rem;
  padding: 0;
  list-style: none;
}
.check-list li {
  position: relative;
  margin-bottom: .65rem;
  padding-left: 1.45rem;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .65em;
  width: 8px;
  aspect-ratio: 1;
  background: var(--accent);
}

.section-heading {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 3rem;
  align-items: end;
  margin-bottom: 3rem;
}
.section-heading p:last-child { color: var(--muted); }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.price-card {
  min-height: 300px;
  padding: 2.2rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: var(--bg-panel);
}
.price-card.featured { background: #20251f; }
.price-label { color: var(--accent); font-weight: 700; letter-spacing: .08em; }
.price {
  margin: 2rem 0 .25rem;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.7rem);
  font-weight: 700;
  line-height: 1;
}
.price span { display: block; margin-top: .55rem; color: var(--muted); font: 500 .8rem var(--font-body); }

.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary {
  padding: 1.4rem 0;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 600;
}
details p { margin-top: 0; color: var(--muted); }

.contact-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(3rem, 7vw, 7rem);
}
.contact-form {
  display: grid;
  gap: 1rem;
}
.contact-form label { display: grid; gap: .45rem; color: var(--muted); }
input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--bg-main);
  color: var(--text);
  padding: .95rem 1rem;
}
input:focus,
textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.site-footer {
  background: #0e1114;
  border-top: 4px solid var(--accent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr .7fr .8fr;
  gap: 3rem;
  padding-block: 4rem;
}
.footer-grid > div { display: grid; align-content: start; gap: .55rem; }
.footer-grid a { color: var(--muted); text-decoration: none; }
.footer-grid a:hover { color: var(--accent); }
.footer-logo {
  width: min(300px, 100%);
  height: auto;
}
.footer-title { color: var(--accent); font-weight: 700; }
.footer-bottom {
  padding-block: 1rem;
  border-top: 1px solid rgba(255,255,255,.07);
  color: var(--muted);
  font-size: .88rem;
}

@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: fixed;
    inset: 76px 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 1.5rem 1.5rem;
    background: var(--bg-alt);
    border-top: 1px solid var(--line);
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { padding: .9rem 0; border-bottom: 1px solid var(--line); }
  .primary-nav .button { margin-top: 1rem; border-bottom: 0; }
  .hero { min-height: auto; }
  .hero-grid,
  .split-grid,
  .split-grid.reverse,
  .contact-grid,
  .section-heading { grid-template-columns: 1fr; }
  .hero-copy { padding-block: 6rem 2rem; }
  .hero-visual { min-height: 420px; margin-bottom: 4rem; }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .container,
  .header-inner { width: min(calc(100% - 2rem), var(--container)); }
  .section { padding-block: 5rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}