/* GhostWire marketing site — modern dark landing, built on the Base tokens
   (--color-*, --text-*, --sp-*, --radius-*, --shadow-*). Local tokens below
   layer a restrained cyan accent + layout scale on top. */
:root {
  color-scheme: dark;
  --maxw: 1120px;
  --gutter: clamp(1.1rem, 4vw, 2rem);
  --section-gap: clamp(4rem, 9vw, 7rem);
  --accent: #5fd0e6;
  --accent-soft: rgba(95, 208, 230, 0.14);
  --surface: rgba(255, 255, 255, 0.025);
  --surface-2: rgba(255, 255, 255, 0.04);
  --hairline: rgba(255, 255, 255, 0.08);
  --hairline-strong: rgba(255, 255, 255, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; }

html, body { margin: 0; min-height: 100%; }

body {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Ambient top glow so the page doesn't read as a flat black slab. */
  background-image:
    radial-gradient(70% 50% at 50% -8%, rgba(95, 208, 230, 0.10), transparent 60%),
    radial-gradient(40% 30% at 85% 8%, rgba(124, 140, 255, 0.07), transparent 70%);
  background-repeat: no-repeat;
}

a { color: inherit; }

h1, h2, h3 { letter-spacing: -0.02em; }

::selection { background: var(--accent-soft); }

/* ---------- shared building blocks ---------- */

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-head {
  max-width: 46rem;
  margin: 0 auto clamp(2rem, 4vw, 3rem);
  text-align: center;
  display: grid;
  gap: 0.7rem;
  justify-items: center;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3.6vw, 2.6rem);
  font-weight: var(--weight-bold);
  line-height: 1.08;
}

.section-head p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  line-height: 1.6;
}

/* Make primary-button anchors render with dark label text (Base primary is a
   light fill; the inherited link colour would otherwise win). */
a.btn--primary,
a.btn--primary:hover,
a.btn--primary:focus-visible {
  color: var(--color-bg-primary);
  text-decoration: none;
}

/* ---------- nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.85rem var(--gutter);
  background: rgba(10, 10, 12, 0.72);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--hairline);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: var(--weight-bold);
  font-size: 1.12rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.nav-logo { width: 1.7rem; height: 1.7rem; border-radius: 8px; }

.nav-links {
  display: flex;
  gap: 1.6rem;
  margin-left: auto;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.nav-links a:hover { color: var(--color-text-primary); }

.nav-cta { margin-left: 0.4rem; }

/* ---------- layout ---------- */

.page {
  width: min(var(--maxw), calc(100% - 2 * var(--gutter)));
  margin: 0 auto;
  display: grid;
  gap: var(--section-gap);
  padding: clamp(2.5rem, 6vw, 5rem) 0 4rem;
}

/* ---------- hero ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.hero-copy { display: grid; gap: 1.15rem; justify-items: start; }

.hero-copy h1 {
  margin: 0;
  font-size: clamp(2.5rem, 6.2vw, 4.4rem);
  font-weight: var(--weight-heavy);
  line-height: 0.98;
}

.lede {
  margin: 0;
  max-width: 34rem;
  color: var(--color-text-secondary);
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  line-height: 1.6;
}

.download-actions { display: grid; gap: 0.6rem; margin-top: 0.4rem; }

.download-split { display: inline-flex; align-items: stretch; width: fit-content; }

.hero-download-main {
  justify-content: center;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  text-decoration: none;
  font-weight: var(--weight-semibold);
}

.hero-download-chevron {
  min-width: 3rem;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border-left: 1px solid rgba(0, 0, 0, 0.22);
  padding-inline: var(--sp-3);
}

.hero-download-main,
.hero-download-chevron,
.hero-download-main:hover,
.hero-download-chevron:hover,
.hero-download-main:focus-visible,
.hero-download-chevron:focus-visible {
  color: var(--color-bg-primary) !important;
}

.download-split .btn--primary:hover { opacity: 1; filter: brightness(0.96); }

.download-menu {
  display: grid;
  gap: var(--sp-1);
  width: fit-content;
  min-width: 280px;
  padding: var(--sp-2);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg-elevated);
  box-shadow: var(--shadow-lg);
}
.download-menu[hidden] { display: none; }

.download-menu-item {
  display: block;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: var(--text-sm-size);
  text-decoration: none;
}
.download-menu-item:hover,
.download-menu-item:focus-visible { background: var(--surface-2); }

.hero-meta {
  margin: 0.2rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  align-items: center;
  font-size: 0.88rem;
  color: var(--color-text-tertiary);
}
.detected-version { color: var(--accent); }
.hero-meta-static { color: var(--color-text-tertiary); }

.hero-art {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 280px;
}
.hero-glow {
  position: absolute;
  width: 78%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(95, 208, 230, 0.28), rgba(124, 140, 255, 0.12) 45%, transparent 70%);
  filter: blur(18px);
}
.ghost {
  position: relative;
  width: min(100%, 380px);
  height: auto;
  display: block;
  filter: drop-shadow(0 24px 60px rgba(0, 0, 0, 0.55));
  animation: float 7s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- trust strip ---------- */

.strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: calc(-1 * var(--section-gap) + clamp(1.5rem, 4vw, 3rem));
}
.strip-item {
  background: var(--color-bg-primary);
  padding: 1.1rem 1.25rem;
  display: grid;
  gap: 0.15rem;
}
.strip-item strong { font-size: 1.05rem; font-weight: var(--weight-bold); }
.strip-item span { color: var(--color-text-tertiary); font-size: 0.86rem; }

/* ---------- features ---------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(0.9rem, 1.6vw, 1.25rem);
}
.feature {
  display: grid;
  gap: 0.55rem;
  align-content: start;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}
.feature:hover {
  transform: translateY(-3px);
  border-color: var(--hairline-strong);
  background: var(--surface-2);
}
.feature-icon {
  font-size: 1.5rem;
  width: 2.9rem;
  height: 2.9rem;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid rgba(95, 208, 230, 0.22);
  margin-bottom: 0.3rem;
}
.feature h3 { margin: 0; font-size: 1.18rem; font-weight: var(--weight-semibold); }
.feature p { margin: 0; color: var(--color-text-secondary); line-height: 1.6; font-size: 0.97rem; }

/* ---------- screenshots ---------- */

.screens { display: grid; gap: 1.4rem; }

.carousel { position: relative; }
.carousel-viewport {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
  aspect-ratio: 16 / 10;
  background: #050506;
  box-shadow: var(--shadow-lg);
}
.carousel-track { position: relative; width: 100%; height: 100%; }
.carousel-slide {
  margin: 0;
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}
.carousel-slide.is-active { opacity: 1; pointer-events: auto; }
.carousel-slide img { width: 100%; height: 100%; object-fit: cover; }

.carousel-control {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: clamp(2.9rem, 4vw, 3.6rem);
  height: clamp(2.9rem, 4vw, 3.6rem);
  padding: 0;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}
.carousel-control--prev { left: var(--sp-3); }
.carousel-control--next { right: var(--sp-3); }
.carousel-control.btn--secondary {
  background: rgba(10, 10, 12, 0.78);
  backdrop-filter: blur(6px);
  border-color: var(--hairline-strong);
  color: var(--color-text-primary);
}
.carousel-control.btn--secondary:hover { background: rgba(20, 20, 24, 0.92); }
.carousel-control.btn--secondary:active { transform: translateY(-50%); }
.carousel-control-icon { stroke-width: 2.3; }

.carousel-dots { display: flex; align-items: center; justify-content: center; gap: var(--sp-2); }
.carousel-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-full);
  border: 0;
  background: var(--hairline-strong);
  cursor: pointer;
  transition: transform var(--transition-fast), background var(--transition-fast), width var(--transition-fast);
}
.carousel-dot:hover { background: var(--color-text-tertiary); }
.carousel-dot.is-active { background: var(--accent); width: 1.4rem; border-radius: 999px; }

/* ---------- how it works ---------- */

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(0.9rem, 1.6vw, 1.25rem);
}
.step {
  display: grid;
  gap: 0.5rem;
  align-content: start;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  position: relative;
}
.step-num {
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  border-radius: var(--radius-full);
  background: var(--accent-soft);
  border: 1px solid rgba(95, 208, 230, 0.25);
  color: var(--accent);
  font-weight: var(--weight-bold);
  margin-bottom: 0.3rem;
}
.step h3 { margin: 0; font-size: 1.12rem; font-weight: var(--weight-semibold); }
.step p { margin: 0; color: var(--color-text-secondary); line-height: 1.55; font-size: 0.95rem; }

/* ---------- faq ---------- */

.faq-list {
  max-width: 50rem;
  margin: 0 auto;
  display: grid;
  gap: 0.7rem;
}
.faq-item {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: 0 1.2rem;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.faq-item[open] { border-color: var(--hairline-strong); background: var(--surface-2); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.05rem 0;
  font-weight: var(--weight-semibold);
  font-size: 1.04rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--accent);
  transition: transform var(--transition-fast);
  line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  margin: 0;
  padding: 0 0 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---------- closing CTA ---------- */

.cta {
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-lg, 20px);
  background:
    radial-gradient(60% 120% at 50% 0%, rgba(95, 208, 230, 0.14), transparent 70%),
    var(--surface-2);
  text-align: center;
}
.cta-inner { display: grid; gap: 0.8rem; justify-items: center; padding: clamp(1rem, 3vw, 2.5rem); }
.cta-inner h2 { margin: 0; font-size: clamp(1.6rem, 3.4vw, 2.4rem); font-weight: var(--weight-bold); }
.cta-inner p { margin: 0; color: var(--color-text-secondary); font-size: 1.05rem; }
.cta-btn { margin-top: 0.6rem; font-weight: var(--weight-semibold); }

/* ---------- terms ---------- */

.disclaimer { max-width: 52rem; margin: 0 auto; display: grid; gap: 0.55rem; }
.disclaimer h2 {
  margin: 0 0 0.2rem;
  font-size: 0.95rem;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}
.disclaimer p { margin: 0; color: var(--color-text-tertiary); line-height: 1.55; font-size: 0.82rem; }

/* ---------- footer ---------- */

.footer {
  border-top: 1px solid var(--hairline);
  padding: 2.2rem var(--gutter) 2.6rem;
  margin-top: 1rem;
}
.footer-inner {
  width: min(var(--maxw), 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-links { display: flex; gap: 1.3rem; font-size: 0.92rem; }
.footer-links a { color: var(--color-text-secondary); text-decoration: none; transition: color var(--transition-fast); }
.footer-links a:hover { color: var(--color-text-primary); }
.footer-fine {
  width: min(var(--maxw), 100%);
  margin: 1.4rem auto 0;
  color: var(--color-text-tertiary);
  font-size: 0.82rem;
}

/* ---------- responsive ---------- */

@media (max-width: 880px) {
  .nav-links { display: none; }
  .hero { grid-template-columns: 1fr; text-align: center; }
  .hero-copy { justify-items: center; }
  .hero-art { order: -1; min-height: 0; }
  .ghost { width: min(58vw, 240px); }
  .download-actions { justify-items: center; }
  .hero-meta { justify-content: center; }
  .strip { grid-template-columns: repeat(2, 1fr); margin-top: 0; }
  .feature-grid, .steps { grid-template-columns: 1fr; }
  .carousel-viewport { aspect-ratio: 4 / 3; }
}

@media (max-width: 520px) {
  .strip { grid-template-columns: 1fr; }
  .download-split, .download-menu { width: 100%; }
  .hero-download-main { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ghost { animation: none; }
}