/* ============================================================
   SpaceVPN — CRT terminal landing
   ============================================================ */

:root {
  --accent: #34e7e4;
  --accent-dim: color-mix(in oklab, var(--accent) 55%, #05100f);
  --accent-soft: color-mix(in oklab, var(--accent) 16%, transparent);

  --bg: oklch(0.135 0.012 200);
  --bg-2: oklch(0.165 0.014 200);
  --panel: oklch(0.185 0.015 200 / 0.55);
  --line: color-mix(in oklab, var(--accent) 18%, transparent);
  --line-soft: color-mix(in oklab, var(--accent) 9%, transparent);

  --ink: oklch(0.9 0.018 195);
  --ink-bright: oklch(0.96 0.03 190);
  --ink-dim: oklch(0.66 0.015 200);
  --ink-faint: oklch(0.5 0.012 200);

  --glow: 1;          /* glow intensity multiplier (tweakable) */
  --scan: 1;          /* scanline opacity multiplier (tweakable) */

  --maxw: 1180px;
  --font: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* ---- ambient background layers ---- */
.bg-field {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(120% 90% at 50% -10%, color-mix(in oklab, var(--accent) 9%, transparent), transparent 55%),
    radial-gradient(100% 100% at 50% 120%, var(--bg-2), transparent 60%),
    var(--bg);
}
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(110% 80% at 50% 0%, #000 0%, transparent 70%);
          mask-image: radial-gradient(110% 80% at 50% 0%, #000 0%, transparent 70%);
  opacity: 0.6;
}

/* ---- CRT overlay: scanlines + vignette + flicker ---- */
.crt {
  position: fixed;
  inset: 0;
  z-index: 9000;
  pointer-events: none;
  mix-blend-mode: overlay;
}
.crt::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.05) 0px,
    rgba(255,255,255,0.05) 1px,
    transparent 1px,
    transparent 3px
  );
  opacity: calc(0.55 * var(--scan));
}
.crt::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 120% at 50% 50%, transparent 58%, rgba(0,0,0,0.55) 100%);
  mix-blend-mode: multiply;
}
.flicker {
  position: fixed;
  inset: 0;
  z-index: 8999;
  pointer-events: none;
  background: var(--accent);
  opacity: 0;
  mix-blend-mode: soft-light;
  animation: flick 7s steps(60) infinite;
}
@keyframes flick {
  0%, 96%, 100% { opacity: 0; }
  97% { opacity: 0.02; }
  98% { opacity: 0.05; }
  99% { opacity: 0.015; }
}

/* ---- layout ---- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--accent);
  text-shadow: 0 0 calc(12px * var(--glow)) var(--accent-soft);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 calc(10px * var(--glow)) var(--accent);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: color-mix(in oklab, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink-bright);
  font-size: 16px;
  text-decoration: none;
}
.brand .mark { filter: drop-shadow(0 0 calc(8px * var(--glow)) var(--accent-soft)); }
.brand b { color: var(--accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}
.nav-links a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }

.btn {
  font-family: var(--font);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--accent);
  color: var(--bg);
  background: var(--accent);
  padding: 11px 20px;
  border-radius: 2px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
  box-shadow: 0 0 calc(18px * var(--glow)) var(--accent-soft);
}
.btn:hover { box-shadow: 0 0 calc(32px * var(--glow)) color-mix(in oklab, var(--accent) 40%, transparent); transform: translateY(-1px); }
.btn.ghost {
  background: transparent;
  color: var(--accent);
  box-shadow: none;
}
.btn.ghost:hover { background: var(--accent-soft); box-shadow: 0 0 calc(20px * var(--glow)) var(--accent-soft); }

.nav-cta { display: flex; align-items: center; gap: 16px; }
.menu-btn { display: none; background: none; border: 1px solid var(--line); color: var(--ink); width: 42px; height: 38px; border-radius: 2px; cursor: pointer; font-size: 16px; }

/* ============================================================
   HERO
   ============================================================ */
.hero { padding: clamp(48px, 8vw, 96px) 0 clamp(40px, 6vw, 80px); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero h1 {
  font-size: clamp(34px, 5.2vw, 62px);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink-bright);
  margin: 22px 0 0;
  text-wrap: balance;
}
.hero h1 .lit {
  color: var(--accent);
  text-shadow: 0 0 calc(26px * var(--glow)) color-mix(in oklab, var(--accent) 50%, transparent);
}
.hero p.lede {
  margin-top: 22px;
  font-size: clamp(15px, 1.4vw, 17px);
  color: var(--ink-dim);
  max-width: 46ch;
  line-height: 1.7;
}
.hero-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-note { margin-top: 18px; font-size: 12px; color: var(--ink-faint); letter-spacing: 0.04em; display: flex; gap: 8px; align-items: center; }
.hero-note .ok { color: var(--accent); }

/* boot line */
.boot {
  font-size: 12.5px;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
}
.boot .c { color: var(--accent); }
.cursor { display: inline-block; width: 8px; height: 1em; background: var(--accent); vertical-align: -2px; margin-left: 3px; animation: blink 1.05s steps(1) infinite; box-shadow: 0 0 calc(8px*var(--glow)) var(--accent); }
@keyframes blink { 50% { opacity: 0; } }

/* ============================================================
   TELEMETRY PANEL (the star)
   ============================================================ */
.tele {
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--accent) 4%, transparent), transparent 40%),
    var(--panel);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--accent) 6%, transparent), 0 30px 80px -40px rgba(0,0,0,0.9), inset 0 0 60px -30px var(--accent-soft);
  position: relative;
}
.tele-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line-soft);
  background: color-mix(in oklab, var(--accent) 5%, transparent);
}
.tele-bar .dot { width: 9px; height: 9px; border-radius: 50%; border: 1px solid var(--line); }
.tele-bar .dot.live { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 calc(9px*var(--glow)) var(--accent); animation: pulse 1.6s infinite; }
.tele-bar .path { margin-left: 8px; font-size: 12px; color: var(--ink-dim); letter-spacing: 0.04em; }
.tele-bar .stat { margin-left: auto; font-size: 11px; letter-spacing: 0.18em; color: var(--accent); text-transform: uppercase; }

.tele-body { padding: 22px 22px 24px; }
.readout-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 26px; }
.readout { }
.readout .lab { font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-faint); }
.readout .val {
  font-size: clamp(30px, 4.4vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  margin-top: 7px;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 calc(22px * var(--glow)) color-mix(in oklab, var(--accent) 45%, transparent);
}
.readout .val .u { font-size: 0.4em; color: var(--ink-dim); letter-spacing: 0.06em; margin-left: 6px; text-shadow: none; font-weight: 500; }
.readout.muted .val { color: var(--ink-bright); text-shadow: none; }

/* sparkline */
.spark { margin-top: 22px; }
.spark .lab { display: flex; justify-content: space-between; font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 9px; }
.spark .lab span:last-child { color: var(--accent); }
.bars { display: flex; align-items: flex-end; gap: 3px; height: 64px; }
.bars .b {
  flex: 1;
  background: linear-gradient(180deg, var(--accent), var(--accent-dim));
  border-radius: 1px;
  min-height: 2px;
  opacity: 0.85;
  transition: height 0.18s linear;
  box-shadow: 0 0 calc(6px*var(--glow)) var(--accent-soft);
}

.tele-foot {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 22px;
  border-top: 1px solid var(--line-soft);
  font-size: 11.5px;
  color: var(--ink-faint);
  letter-spacing: 0.05em;
}
.tele-foot b { color: var(--ink-dim); font-weight: 500; }

/* ============================================================
   STATS BAND
   ============================================================ */
.band {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: color-mix(in oklab, var(--accent) 3%, transparent);
}
.band-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.band-cell { padding: 26px 24px; border-left: 1px solid var(--line-soft); }
.band-cell:first-child { border-left: none; }
.band-cell .n { font-size: clamp(24px, 3vw, 34px); font-weight: 700; color: var(--ink-bright); letter-spacing: -0.01em; }
.band-cell .n em { color: var(--accent); font-style: normal; text-shadow: 0 0 calc(16px*var(--glow)) var(--accent-soft); }
.band-cell .t { margin-top: 6px; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint); }

/* ============================================================
   FEATURES
   ============================================================ */
.section { padding: clamp(64px, 9vw, 110px) 0; }
.sec-head { max-width: 60ch; margin-bottom: clamp(34px, 5vw, 56px); }
.sec-head h2 {
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink-bright);
  margin-top: 16px;
  line-height: 1.1;
  text-wrap: balance;
}
.sec-head p { margin-top: 16px; color: var(--ink-dim); font-size: 15px; max-width: 52ch; }

.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.feat {
  background: var(--bg);
  padding: 30px 28px 34px;
  position: relative;
  transition: background 0.25s, transform 0.25s;
}
.feat:hover { background: color-mix(in oklab, var(--accent) 5%, var(--bg)); }
.feat .idx { font-size: 12px; color: var(--accent); letter-spacing: 0.16em; }
.feat .ico { margin: 18px 0 16px; color: var(--accent); filter: drop-shadow(0 0 calc(8px*var(--glow)) var(--accent-soft)); }
.feat h3 { font-size: 17px; font-weight: 700; color: var(--ink-bright); letter-spacing: 0.01em; }
.feat p { margin-top: 9px; font-size: 13.5px; color: var(--ink-dim); line-height: 1.65; }
/* corner brackets on hover */
.feat::before, .feat::after {
  content: "";
  position: absolute;
  width: 12px; height: 12px;
  border: 1px solid var(--accent);
  opacity: 0;
  transition: opacity 0.25s;
}
.feat::before { top: 12px; right: 12px; border-left: none; border-bottom: none; }
.feat::after { bottom: 12px; left: 12px; border-right: none; border-top: none; }
.feat:hover::before, .feat:hover::after { opacity: 0.8; }

/* reveal animation */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   CTA STRIP
   ============================================================ */
.cta {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: clamp(36px, 6vw, 64px);
  text-align: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 140% at 50% -20%, color-mix(in oklab, var(--accent) 12%, transparent), transparent 60%),
    var(--panel);
}
.cta h2 { font-size: clamp(26px, 4vw, 44px); font-weight: 800; letter-spacing: -0.02em; color: var(--ink-bright); line-height: 1.08; text-wrap: balance; }
.cta h2 .lit { color: var(--accent); text-shadow: 0 0 calc(24px*var(--glow)) var(--accent-soft); }
.cta p { margin: 18px auto 0; color: var(--ink-dim); max-width: 48ch; font-size: 15px; }
.cta .hero-actions { justify-content: center; }

/* ============================================================
   FOOTER
   ============================================================ */
.foot { border-top: 1px solid var(--line-soft); padding: 54px 0 40px; }
.foot-grid { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; align-items: flex-start; }
.foot .brand { margin-bottom: 14px; }
.foot-desc { color: var(--ink-faint); font-size: 13px; max-width: 34ch; line-height: 1.7; }
.foot-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.foot-col h4 { font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 14px; }
.foot-col a { display: block; color: var(--ink-dim); text-decoration: none; font-size: 13.5px; margin-bottom: 10px; transition: color 0.2s; }
.foot-col a:hover { color: var(--accent); }
.foot-bottom {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
}
.foot-prompt { color: var(--ink-dim); }
.foot-prompt .c { color: var(--accent); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .tele { order: -1; }
  .band-grid { grid-template-columns: repeat(2, 1fr); }
  .band-cell:nth-child(3) { border-left: none; }
  .band-cell:nth-child(n+3) { border-top: 1px solid var(--line-soft); }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .wrap { padding: 0 18px; }
  .nav-links { display: none; }
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; }
  .nav .btn.show-desktop { display: none; }
  .feat-grid { grid-template-columns: 1fr; }
  .band-grid { grid-template-columns: 1fr 1fr; }
  .readout-grid { gap: 16px 18px; }
  .foot-cols { gap: 36px; }
  .hero-actions .btn { flex: 1; justify-content: center; }
}
/* mobile menu drawer */
.drawer {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px 18px 18px;
  border-bottom: 1px solid var(--line-soft);
  background: color-mix(in oklab, var(--bg) 92%, transparent);
}
.drawer.open { display: flex; }
.drawer a { color: var(--ink-dim); text-decoration: none; padding: 12px 4px; font-size: 14px; letter-spacing: 0.06em; text-transform: uppercase; border-bottom: 1px solid var(--line-soft); }
.drawer a:last-of-type { border-bottom: none; }

@media (prefers-reduced-motion: reduce) {
  .flicker, .cursor, .eyebrow::before, .tele-bar .dot.live { animation: none !important; }
  html { scroll-behavior: auto; }
}