/* ========== Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #05060f;
  --bg-2: #090b1e;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-strong: rgba(255, 255, 255, 0.065);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #eef0fb;
  --muted: #8a90b3;
  --muted-2: #6a6f8f;
  --accent: #8b5cff;
  --accent-2: #22d3ee;
  --accent-3: #f472b6;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 20px 60px -20px rgba(139, 92, 255, 0.55);
  --font-display: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ========== Backgrounds ========== */
.aurora {
  position: fixed; inset: -20%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(600px 500px at 15% 10%, rgba(139, 92, 255, 0.35), transparent 60%),
    radial-gradient(700px 500px at 90% 5%, rgba(34, 211, 238, 0.28), transparent 60%),
    radial-gradient(800px 600px at 50% 90%, rgba(244, 114, 182, 0.18), transparent 60%),
    radial-gradient(500px 400px at 80% 60%, rgba(59, 130, 246, 0.22), transparent 60%);
  filter: blur(30px) saturate(120%);
  animation: aurora 24s ease-in-out infinite alternate;
}
@keyframes aurora {
  0%   { transform: translate3d(0,0,0) scale(1); }
  50%  { transform: translate3d(-3%, 2%, 0) scale(1.05); }
  100% { transform: translate3d(2%, -1%, 0) scale(1.02); }
}

.stars, .stars-2 {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 20% 30%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 70% 80%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 40% 60%, #cfd6ff 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 85% 20%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 10% 85%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 55% 15%, #cfd6ff 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 30% 90%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 92% 45%, #fff 50%, transparent 51%);
  background-size: 700px 700px;
  opacity: 0.5;
  animation: drift 140s linear infinite;
}
.stars-2 {
  background-size: 1100px 1100px;
  opacity: 0.28;
  animation-duration: 220s;
  animation-direction: reverse;
}
@keyframes drift { to { background-position: 700px 700px; } }

.grid-overlay {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

/* ========== Layout wrapper ========== */
main, .footer, .nav { position: relative; z-index: 1; }

/* ========== Nav ========== */
.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  background: rgba(5, 6, 15, 0.55);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; gap: 24px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--text); text-decoration: none;
  font-family: var(--font-display); font-weight: 700; font-size: 17px;
  letter-spacing: -0.01em;
}
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 9px;
  color: var(--accent-2);
  background: linear-gradient(135deg, rgba(139,92,255,0.25), rgba(34,211,238,0.2));
  border: 1px solid rgba(34, 211, 238, 0.35);
  box-shadow: 0 0 14px rgba(34, 211, 238, 0.35);
}
.nav nav { display: flex; gap: 26px; }
.nav nav a {
  color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 500;
  transition: color 0.2s;
}
.nav nav a:hover { color: var(--text); }
.nav-cta {
  padding: 8px 16px; border-radius: 10px;
  background: var(--panel-strong); border: 1px solid var(--border-strong);
  color: var(--text); text-decoration: none; font-size: 13px; font-weight: 600;
  transition: background 0.2s, border-color 0.2s;
}
.nav-cta:hover { background: rgba(139, 92, 255, 0.15); border-color: rgba(139, 92, 255, 0.5); }

/* ========== Hero ========== */
.hero {
  max-width: 1200px; margin: 0 auto;
  padding: 90px 24px 90px;
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 60px;
  align-items: center;
}
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--panel);
  font-size: 12px; color: var(--muted); font-weight: 500;
  margin-bottom: 24px;
}
.chip-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #22d3ee; box-shadow: 0 0 8px #22d3ee;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.5; } }

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.4vw, 4.2rem);
  line-height: 1.02; letter-spacing: -0.03em; font-weight: 700;
  color: #fff;
}
.grad {
  background: linear-gradient(120deg, #8b5cff 0%, #22d3ee 50%, #f472b6 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% 100%;
  animation: grad-shift 8s ease-in-out infinite;
}
@keyframes grad-shift { 50% { background-position: 100% 0; } }

.lede {
  margin-top: 22px; color: var(--muted); font-size: 17px; max-width: 540px;
}
.hero-actions { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: 12px; font-weight: 600; font-size: 14px;
  text-decoration: none; cursor: pointer; border: 1px solid transparent;
  font-family: var(--font-body);
  transition: transform 0.15s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.btn-primary {
  background: linear-gradient(135deg, #8b5cff, #22d3ee);
  color: #0a0b1a;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 24px 60px -18px rgba(139, 92, 255, 0.75); }
.btn-ghost { background: var(--panel); color: var(--text); border-color: var(--border-strong); }
.btn-ghost:hover { background: var(--panel-strong); border-color: var(--muted-2); }
.btn-lg { padding: 15px 28px; font-size: 15px; margin-top: 28px; }

.hero-stats {
  margin-top: 48px; display: flex; gap: 40px; flex-wrap: wrap;
  padding-top: 28px; border-top: 1px solid var(--border);
}
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats strong {
  font-family: var(--font-display); font-size: 24px; color: var(--text); font-weight: 600;
}
.hero-stats span { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.12em; margin-top: 2px; }

/* Hero visual */
.hero-visual {
  position: relative; aspect-ratio: 1; max-width: 480px; justify-self: center; width: 100%;
}
.planet-wrap {
  position: absolute; inset: 22%;
  animation: float 7s ease-in-out infinite;
}
.planet {
  position: absolute; inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 28%, #c9b6ff 0%, #8f7bff 20%, #4530a8 55%, #150a3a 85%, #05020f 100%);
  box-shadow:
    inset -30px -40px 80px rgba(0,0,0,0.75),
    inset 15px 20px 40px rgba(200, 180, 255, 0.15),
    0 0 100px rgba(139, 92, 255, 0.5);
  position: relative;
  overflow: hidden;
}
.planet::before {
  content: "";
  position: absolute; inset: 0; border-radius: 50%;
  background:
    radial-gradient(ellipse 40% 8% at 60% 40%, rgba(255,255,255,0.08), transparent 60%),
    radial-gradient(ellipse 30% 6% at 30% 60%, rgba(0,0,0,0.35), transparent 60%),
    radial-gradient(ellipse 50% 10% at 55% 75%, rgba(0,0,0,0.4), transparent 60%);
}
.planet-glow {
  position: absolute; inset: -20%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 255, 0.35) 0%, transparent 60%);
  filter: blur(20px);
  z-index: -1;
}
.ring {
  position: absolute; inset: -8%;
  border-radius: 50%;
  border: 1.5px solid rgba(34, 211, 238, 0.45);
  transform: rotateX(72deg) rotateZ(-15deg);
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.25), inset 0 0 30px rgba(34, 211, 238, 0.15);
}
.ring-2 {
  inset: -18%;
  border-color: rgba(244, 114, 182, 0.25);
  transform: rotateX(72deg) rotateZ(-15deg);
  box-shadow: 0 0 30px rgba(244, 114, 182, 0.15);
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

/* Orbits */
.orbit {
  position: absolute; top: 50%; left: 50%;
  border: 1px dashed rgba(255,255,255,0.07);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.orbit-1 { width: 92%; height: 92%; animation: spin 22s linear infinite; }
.orbit-2 { width: 70%; height: 70%; animation: spin 14s linear infinite reverse; border-color: rgba(34,211,238,0.12); }
.orbit-3 { width: 55%; height: 55%; border-color: rgba(244,114,182,0.1); animation: spin 30s linear infinite; }
.satellite {
  position: absolute; top: -5px; left: 50%; transform: translateX(-50%);
  width: 10px; height: 10px; border-radius: 50%;
  background: #22d3ee; box-shadow: 0 0 14px #22d3ee, 0 0 30px rgba(34, 211, 238, 0.5);
}
.satellite.s2 {
  background: #f472b6; box-shadow: 0 0 14px #f472b6, 0 0 30px rgba(244, 114, 182, 0.5);
  width: 7px; height: 7px;
}
@keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

.floating-star {
  position: absolute; width: 3px; height: 3px; border-radius: 50%;
  background: #fff; box-shadow: 0 0 8px #fff;
  animation: twinkle 3s ease-in-out infinite;
}
.floating-star.s-a { top: 12%; left: 15%; animation-delay: 0s; }
.floating-star.s-b { top: 78%; right: 10%; animation-delay: 1s; }
.floating-star.s-c { top: 40%; right: 4%; width: 2px; height: 2px; animation-delay: 2s; }
@keyframes twinkle { 0%,100% { opacity: 0.3; transform: scale(1); } 50% { opacity: 1; transform: scale(1.4); } }

/* ========== Features strip ========== */
.features {
  max-width: 1200px; margin: 0 auto; padding: 0 24px 40px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.feature {
  padding: 22px; border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border);
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}
.feature:hover { background: var(--panel-strong); border-color: var(--border-strong); transform: translateY(-2px); }
.f-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 10px;
  color: var(--accent-2);
  background: linear-gradient(135deg, rgba(139,92,255,0.15), rgba(34,211,238,0.15));
  border: 1px solid rgba(34, 211, 238, 0.25);
  margin-bottom: 14px;
}
.feature h3 { font-family: var(--font-display); font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.feature p { font-size: 13.5px; color: var(--muted); line-height: 1.55; }

/* ========== Sections ========== */
.section {
  max-width: 1200px; margin: 0 auto;
  padding: 90px 24px;
}
.section-head { text-align: center; margin-bottom: 48px; }
.eyebrow {
  display: inline-block; font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.16em;
  color: var(--accent-2); margin-bottom: 14px;
  padding: 4px 12px; border-radius: 999px;
  background: rgba(34,211,238,0.08); border: 1px solid rgba(34,211,238,0.2);
}
.section-head h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.8rem); letter-spacing: -0.02em; color: #fff;
}
.section-head p { color: var(--muted); margin-top: 12px; font-size: 16px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* ========== Downloads ========== */
.download-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.dl-card {
  display: flex; align-items: center; gap: 16px;
  padding: 20px; border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  color: var(--text); text-decoration: none;
  transition: transform 0.15s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
  position: relative; overflow: hidden;
}
.dl-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px 200px at var(--x, 50%) var(--y, 0%), rgba(139,92,255,0.15), transparent 60%);
  opacity: 0; transition: opacity 0.3s; pointer-events: none;
}
.dl-card:hover {
  transform: translateY(-3px);
  border-color: rgba(139, 92, 255, 0.45);
  box-shadow: 0 20px 40px -20px rgba(139, 92, 255, 0.4);
}
.dl-card:hover::before { opacity: 1; }

.dl-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px; flex-shrink: 0;
  color: var(--text);
  background: linear-gradient(135deg, rgba(139,92,255,0.18), rgba(34,211,238,0.12));
  border: 1px solid rgba(139, 92, 255, 0.3);
  border-radius: 14px;
}
.dl-meta { flex: 1; min-width: 0; }
.dl-meta h3 { font-family: var(--font-display); font-size: 15px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.dl-meta p { font-size: 13px; color: var(--muted); margin-top: 3px; }
.dl-btn {
  font-size: 12px; font-weight: 600;
  color: var(--accent-2);
  border: 1px solid rgba(34, 211, 238, 0.35);
  background: rgba(34, 211, 238, 0.08);
  padding: 7px 14px; border-radius: 999px;
  transition: background 0.2s;
}
.dl-card:hover .dl-btn { background: rgba(34, 211, 238, 0.2); }

.dl-card-soon { opacity: 0.55; pointer-events: none; }
.dl-btn-muted { color: var(--muted); border-color: var(--border-strong); background: transparent; }
.badge-soon {
  font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  padding: 2px 7px; border-radius: 999px;
  background: rgba(244, 114, 182, 0.15); color: #f472b6;
  border: 1px solid rgba(244, 114, 182, 0.3);
}

/* ========== Releases ========== */
.releases-list { display: flex; flex-direction: column; gap: 16px; max-width: 820px; margin: 0 auto; }
.release {
  padding: 24px 26px; border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  position: relative;
}
.release::before {
  content: ""; position: absolute; left: 0; top: 20px; bottom: 20px; width: 3px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  border-radius: 0 3px 3px 0;
}
.release-head {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin-bottom: 14px;
}
.release-version {
  font-family: var(--font-display); font-weight: 700; font-size: 20px; letter-spacing: -0.01em;
}
.release-tag {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(34, 211, 238, 0.12); color: var(--accent-2);
  border: 1px solid rgba(34, 211, 238, 0.35);
}
.release-date { color: var(--muted); font-size: 13px; margin-left: auto; }
.release ul { margin: 0; padding-left: 20px; color: var(--muted); }
.release ul li { margin-top: 6px; font-size: 14.5px; }
.release ul li::marker { color: var(--accent-2); }

/* ========== About ========== */
.about { padding-bottom: 60px; }
.about-card {
  max-width: 780px; margin: 0 auto; text-align: center;
  padding: 60px 40px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(600px 300px at 50% 0%, rgba(139,92,255,0.18), transparent 65%),
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-soft);
}
.about-card .eyebrow { margin-bottom: 16px; }
.about-card h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.8rem, 3.6vw, 2.6rem); letter-spacing: -0.02em; color: #fff; }
.about-card p { color: var(--muted); margin-top: 16px; font-size: 16px; }

/* ========== Footer / Contact ========== */
.footer {
  max-width: 1200px; margin: 0 auto;
  padding: 40px 24px 32px;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
.contact {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  overflow: hidden;
  transition: border-color 0.2s;
}
.contact[open] { border-color: rgba(139, 92, 255, 0.4); }
.contact summary {
  list-style: none;
  padding: 18px 22px; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-display); font-weight: 600; font-size: 15px;
}
.contact summary::-webkit-details-marker { display: none; }
.contact-title { display: inline-flex; align-items: center; gap: 10px; color: var(--text); }
.contact-title svg { color: var(--accent-2); }
.chev { transition: transform 0.25s; color: var(--muted); font-size: 14px; }
.contact[open] .chev { transform: rotate(180deg); }
.contact-body {
  padding: 8px 24px 26px;
  border-top: 1px solid var(--border);
}
.contact-body > p { color: var(--muted); margin: 16px 0 20px; font-size: 14px; }

.contact-form { display: flex; flex-direction: column; gap: 14px; }
.contact-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-form label { display: flex; flex-direction: column; gap: 6px; font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.contact-form input,
.contact-form textarea {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body); font-size: 14px; font-weight: 400;
  text-transform: none; letter-spacing: 0;
  transition: border-color 0.2s, background 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none; border-color: var(--accent); background: rgba(0,0,0,0.5);
  box-shadow: 0 0 0 3px rgba(139, 92, 255, 0.15);
}
.contact-form textarea { resize: vertical; min-height: 110px; }
.contact-form button { align-self: flex-start; margin-top: 6px; }

.foot-bottom {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--border);
  flex-wrap: wrap; gap: 12px;
}
.foot-brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600; font-size: 14px; color: var(--muted);
}
.foot-brand .brand-mark { width: 26px; height: 26px; }
.copyright {
  color: var(--muted-2); font-size: 13px;
}

/* ========== Responsive ========== */
@media (max-width: 960px) {
  .features { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding: 60px 24px 40px; gap: 40px; }
  .hero-visual { max-width: 320px; grid-row: 2; }
  .nav nav { display: none; }
  .nav-cta { padding: 7px 14px; font-size: 12.5px; }
  .contact-form .row { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .section { padding: 60px 24px; }
  .about-card { padding: 44px 24px; }
}
@media (max-width: 520px) {
  .features { grid-template-columns: 1fr; }
  .foot-bottom { flex-direction: column; text-align: center; }
}