:root {
  --ink: #0c1624;
  --ink-soft: #1a2a3f;
  --paper: #f3efe6;
  --paper-dim: #e7e0d2;
  --gold: #c4a35a;
  --gold-bright: #e0c07a;
  --line: rgba(243, 239, 230, 0.14);
  --text: #f3efe6;
  --muted: rgba(243, 239, 230, 0.72);
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Manrope", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  color: var(--text);
  background: var(--ink);
  line-height: 1.55;
}

a {
  color: var(--gold-bright);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #fff;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 55% at 15% 10%, rgba(196, 163, 90, 0.18), transparent 55%),
    radial-gradient(ellipse 70% 50% at 90% 20%, rgba(52, 92, 140, 0.35), transparent 50%),
    linear-gradient(165deg, #071018 0%, #0c1624 42%, #13233a 100%);
  overflow: hidden;
}

.atmosphere::before {
  content: "";
  position: absolute;
  inset: -20%;
  background-image:
    linear-gradient(rgba(243, 239, 230, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 239, 230, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  transform: rotate(-8deg);
  animation: drift 28s linear infinite;
  pointer-events: none;
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 120%, rgba(196, 163, 90, 0.12), transparent 45%);
  pointer-events: none;
}

@keyframes drift {
  from { transform: rotate(-8deg) translateY(0); }
  to { transform: rotate(-8deg) translateY(-72px); }
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand img {
  border-radius: 8px;
}

.top nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.top nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

.top nav a:hover {
  color: var(--text);
}

.nav-cta {
  appearance: none;
  cursor: pointer;
  font: inherit;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  background: transparent;
}

.nav-cta:hover {
  color: #fff;
  border-color: rgba(243, 239, 230, 0.35);
}

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(3rem, 12vh, 7rem) 1.5rem 5rem;
  min-height: calc(100vh - 5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand-mark {
  margin: 0 0 0.75rem;
  font-family: var(--serif);
  font-size: clamp(3.4rem, 9vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--paper);
  opacity: 0;
  animation: rise 0.9s ease forwards;
}

.hero h1 {
  margin: 0;
  max-width: 14ch;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 400;
  font-style: italic;
  color: var(--gold-bright);
  opacity: 0;
  animation: rise 0.9s ease 0.12s forwards;
}

.lede {
  margin: 1.25rem 0 0;
  max-width: 36rem;
  font-size: 1.08rem;
  color: var(--muted);
  opacity: 0;
  animation: rise 0.9s ease 0.22s forwards;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
  opacity: 0;
  animation: rise 0.9s ease 0.32s forwards;
}

.meta {
  margin: 1.1rem 0 0;
  font-size: 0.88rem;
  color: rgba(243, 239, 230, 0.5);
  opacity: 0;
  animation: rise 0.9s ease 0.42s forwards;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.35rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn.primary {
  background: var(--gold);
  color: var(--ink);
}

.btn.primary:hover {
  background: var(--gold-bright);
  color: var(--ink);
}

.btn.ghost {
  border: 1px solid var(--line);
  color: var(--text);
  background: transparent;
}

.btn.ghost:hover {
  border-color: rgba(243, 239, 230, 0.35);
  color: #fff;
}

.btn.wide {
  width: 100%;
  margin-top: 1.5rem;
}

.btn.add-chrome {
  background: #fff;
  color: #202124;
  border: 1px solid #dadce0;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
  gap: 0.65rem;
  font-weight: 600;
}

.btn.add-chrome:hover {
  background: #f8f9fa;
  color: #202124;
  border-color: #c6c9ce;
}

.chrome-mark {
  display: inline-flex;
  width: 22px;
  height: 22px;
}

.modal[hidden] {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 10, 18, 0.72);
  backdrop-filter: blur(4px);
}

.modal-card {
  position: relative;
  z-index: 1;
  width: min(100%, 440px);
  padding: 1.6rem 1.5rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: linear-gradient(180deg, #152438 0%, #0f1b2c 100%);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  animation: rise 0.35s ease;
}

.modal-x {
  position: absolute;
  top: 0.55rem;
  right: 0.7rem;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
}

.modal-card h2 {
  margin: 0 1.5rem 0 0;
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 400;
}

.modal-lede {
  margin: 0.55rem 0 0;
  color: var(--muted);
}

.modal-card ol {
  margin: 1.1rem 0 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.55rem;
  color: var(--muted);
}

.modal-card li::marker {
  color: var(--gold);
}

.modal-card code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86em;
  color: var(--paper);
  background: rgba(0, 0, 0, 0.28);
  padding: 0.08em 0.32em;
  border-radius: 3px;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.35rem;
}

.modal-actions .btn {
  flex: 1 1 auto;
}

.modal-note {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  color: rgba(243, 239, 230, 0.5);
}

.how,
.install {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem;
  border-top: 1px solid var(--line);
}

.how h2,
.install h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 400;
}

.section-lede {
  margin: 0.75rem 0 0;
  max-width: 36rem;
  color: var(--muted);
}

.steps {
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.1rem;
  align-items: start;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.step-num {
  font-family: var(--serif);
  font-size: 1.6rem;
  color: var(--gold);
  line-height: 1;
}

.steps h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 650;
}

.steps p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.install-panel {
  margin-top: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  background: rgba(19, 35, 58, 0.55);
  backdrop-filter: blur(8px);
}

.install-panel ol {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.9rem;
  color: var(--muted);
}

.install-panel li::marker {
  color: var(--gold);
}

.install-panel code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  color: var(--paper);
  background: rgba(0, 0, 0, 0.25);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

.foot {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3.5rem;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.foot strong {
  display: block;
  color: var(--text);
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 400;
}

@media (max-width: 720px) {
  .top nav a:not(.nav-cta) {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .cta-row {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}