:root {
  --bg:         #000000;
  --bg2:        #0c0c0f;
  --bg3:        #111118;
  --accent:     #8b3cf7;
  --accent-b:   #a855f7;
  --accent-dim: #5b21b6;
  --accent-rgb: 139, 60, 247;
  --accent-b-rgb: 168, 85, 247;
  --text:       #e2e2f0;
  --text-muted: #7a7a96;
  --border:     #1a1a2e;
  --border-b:   #2a2a4a;
  --maxw:       1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
*:focus-visible { outline: 2px solid var(--accent-b); outline-offset: 2px; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Ambient purple glows in the background */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .5;
  pointer-events: none;
  z-index: 0;
}
.bg-glow-1 { width: 520px; height: 520px; background: rgba(var(--accent-rgb), .28); top: -160px; right: -120px; }
.bg-glow-2 { width: 460px; height: 460px; background: rgba(91, 33, 182, .25); bottom: -200px; left: -140px; }

.topbar, main, .site-footer { position: relative; z-index: 1; }

/* ── Top bar ─────────────────────────────────────────────── */
.topbar {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 22px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: baseline; gap: 9px; }
.brand-name {
  font-size: 15px; font-weight: 700; letter-spacing: 4px;
  color: var(--accent-b);
  text-shadow: 0 0 16px rgba(var(--accent-b-rgb), .55);
}
.brand-ver {
  font-size: 11px; color: var(--text-muted);
  font-family: 'Consolas', monospace; letter-spacing: 1px;
}
.beta-pill {
  font-size: 10px; font-weight: 700; letter-spacing: 2px;
  font-family: 'Consolas', monospace;
  color: var(--accent-b);
  border: 1px solid var(--border-b);
  background: rgba(var(--accent-rgb), .1);
  padding: 5px 11px; border-radius: 20px;
}

/* ── Hero (split) ────────────────────────────────────────── */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 48px 24px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero-title {
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 800; letter-spacing: 4px; line-height: 1.02;
  color: #fff;
  text-shadow: 0 0 40px rgba(var(--accent-b-rgb), .45);
  margin-bottom: 18px;
}
.hero-tagline {
  font-size: 17px; color: var(--text-muted);
  max-width: 30ch; margin-bottom: 30px;
}

/* download block */
.download-btn {
  display: inline-flex; align-items: center; gap: 11px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #fff; border: none; border-radius: 14px;
  padding: 16px 28px;
  font-size: 16px; font-weight: 700; letter-spacing: .3px;
  cursor: pointer;
  box-shadow: 0 0 26px rgba(var(--accent-rgb), .45);
  transition: transform .12s, box-shadow .12s, filter .12s;
}
.download-btn svg { width: 20px; height: 20px; }
.download-btn:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(var(--accent-b-rgb), .6); filter: brightness(1.08); }
.download-btn:active { transform: scale(.97); }

/* beta code form */
.code-form {
  margin-top: 18px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 16px 14px;
  max-width: 380px;
  animation: slideDown .18s ease;
}
@keyframes slideDown { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.code-label {
  display: block;
  font-size: 10px; font-weight: 700; letter-spacing: 2px;
  color: var(--text-muted); font-family: 'Consolas', monospace;
  margin-bottom: 9px; text-transform: uppercase;
}
.code-row { display: flex; gap: 8px; }
.code-input {
  flex: 1; min-width: 0;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border-b); border-radius: 10px;
  padding: 11px 13px;
  font-size: 15px; font-family: 'Consolas', monospace; letter-spacing: 2px;
}
.code-input::placeholder { color: #4a4a63; letter-spacing: 2px; }
.code-input:focus { border-color: var(--accent-b); }
.code-submit {
  background: var(--accent); color: #fff;
  border: none; border-radius: 10px;
  padding: 11px 18px;
  font-size: 14px; font-weight: 700; cursor: pointer;
  transition: background .12s, transform .1s;
  flex-shrink: 0;
}
.code-submit:hover { background: var(--accent-b); }
.code-submit:active { transform: scale(.95); }
.code-submit:disabled { opacity: .5; cursor: default; }
.code-msg { font-size: 13px; margin-top: 10px; min-height: 18px; }
.code-msg.error { color: #ff6b81; }
.code-msg.ok { color: #4ade80; }
.code-msg.working { color: var(--text-muted); }

.req-line {
  margin-top: 20px;
  font-size: 13px; color: var(--text-muted);
  font-family: 'Consolas', monospace; letter-spacing: .5px;
}
.smartscreen-note {
  margin-top: 12px;
  font-size: 12.5px; color: var(--text-muted);
  max-width: 42ch; line-height: 1.55;
  border-left: 2px solid var(--border-b);
  padding-left: 12px;
}
.smartscreen-note strong { color: var(--text); font-weight: 600; }

/* hero art */
.hero-right { display: flex; justify-content: center; }
.art-card {
  position: relative;
  width: 100%; max-width: 400px;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--border-b);
  box-shadow: 0 24px 70px rgba(0,0,0,.6), 0 0 60px rgba(var(--accent-rgb), .22);
}
.art-img { display: block; width: 100%; height: auto; }
.art-glow {
  position: absolute; inset: 0;
  box-shadow: inset 0 0 80px rgba(var(--accent-rgb), .15);
  pointer-events: none;
}

/* ── Features ────────────────────────────────────────────── */
.features {
  max-width: var(--maxw);
  margin: 30px auto 0;
  padding: 0 24px 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feature {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 20px;
  transition: border-color .15s, transform .15s;
}
.feature:hover { border-color: var(--border-b); transform: translateY(-3px); }
.feature svg { width: 26px; height: 26px; color: var(--accent-b); margin-bottom: 12px; }
.feature h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.feature p { font-size: 14px; color: var(--text-muted); }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
  max-width: var(--maxw);
  margin: 40px auto 0;
  padding: 28px 24px 40px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.formats {
  font-size: 12px; color: var(--text-muted);
  font-family: 'Consolas', monospace; letter-spacing: 1px;
  margin-bottom: 14px;
}
.footer-meta { font-size: 13px; color: var(--text-muted); }
.footer-link { color: var(--accent-b); text-decoration: none; }
.footer-link:hover { text-decoration: underline; }
.footer-meta .dot { margin: 0 8px; opacity: .5; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 34px; padding-top: 30px; }
  .hero-right { order: -1; }
  .art-card { max-width: 320px; }
  .hero-tagline { max-width: none; }
  .features { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .features { grid-template-columns: 1fr; }
  .topbar { padding: 18px 20px; }
  .hero { padding-left: 20px; padding-right: 20px; }
  .code-form { max-width: none; }
}