/* ============================================================
   LUNARTUNE // STATIC SITE
   Rule: everything under #site is STATIC — no keyframe
   animations, no transitions, no scroll effects. The ONLY
   motion on this page is the one-shot boot sequence (#boot),
   the single reveal flash, and the scroll-driven screenshot
   cascade (transforms follow your finger like the app's pager —
   nothing moves on its own). Enforced by the kill-switch below.
   ============================================================ */
#site *,
#site *::before,
#site *::after {
  animation: none !important;
  transition: none !important;
}

:root {
  --bg: #05060a;
  --panel: #0b0d15;
  --line: #1d2333;
  --text: #e9ecf5;
  --muted: #8b91a7;
  --lime: #c6ff00;
  --violet: #8b2bff;
  --amber: #ffb300;
  --display: "Rajdhani", "Arial Narrow", system-ui, sans-serif;
  --mono: "Share Tech Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html { scroll-behavior: auto; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--display);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--lime); text-decoration: none; }
a:hover { color: #fff; }

::selection { background: var(--lime); color: #000; }

/* ================= BOOT (one-shot only) ================= */
#boot {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: #000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  cursor: pointer;
}

#boot-name {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(3rem, 12vw, 7rem);
  letter-spacing: 0.04em;
  color: #fff;
  text-shadow: 3px 0 0 var(--lime), -3px 0 0 var(--violet);
}

#boot-name.slice { animation: boot-slice 0.13s steps(2) 1; }

@keyframes boot-slice {
  0%   { transform: translate(0); clip-path: inset(0 0 0 0); filter: none; }
  25%  { transform: translate(-14px, 4px) skewX(-8deg); clip-path: inset(12% 0 62% 0); filter: hue-rotate(90deg) contrast(1.6); }
  50%  { transform: translate(12px, -6px) skewX(6deg); clip-path: inset(58% 0 8% 0); filter: invert(0.9); }
  75%  { transform: translate(-6px, 2px); clip-path: inset(30% 0 40% 0); filter: saturate(3); }
  100% { transform: translate(0); clip-path: inset(0 0 0 0); filter: none; }
}

#boot-sub {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.5em;
  color: var(--muted);
}

/* One-shot reveal flash, applied once then removed by JS */
#site.reveal { animation: reveal-glitch 0.38s steps(3) 1; }

@keyframes reveal-glitch {
  0%   { clip-path: inset(0 0 0 0); transform: translate(0); filter: none; }
  20%  { clip-path: inset(8% 0 74% 0); transform: translate(-18px, 6px); filter: invert(0.85) hue-rotate(60deg); }
  40%  { clip-path: inset(62% 0 6% 0); transform: translate(16px, -4px); filter: saturate(4) contrast(1.5); }
  60%  { clip-path: inset(28% 0 48% 0); transform: translate(-8px, 2px); filter: invert(0.4); }
  80%  { clip-path: inset(4% 0 88% 0); transform: translate(5px, 0); filter: hue-rotate(-40deg); }
  100% { clip-path: inset(0 0 0 0); transform: translate(0); filter: none; }
}

/* ================= TOP BAR ================= */
.topbar {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px clamp(16px, 4vw, 48px);
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.72), transparent);
}

.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-family: var(--mono); letter-spacing: 0.18em; font-size: 0.95rem; }
.brand img { display: block; }

.topbar nav { display: flex; align-items: center; gap: clamp(10px, 2.4vw, 28px); font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.12em; }
.topbar nav a { color: var(--muted); }
.topbar nav a:hover { color: var(--lime); }

.nav-cta {
  color: #000 !important;
  background: var(--lime);
  padding: 8px 16px;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}
.nav-cta:hover { background: #fff; }

/* ================= HERO ================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  background: #000 url("assets/icon-fg.png") center center / cover no-repeat;
  overflow: hidden;
}

/* scrims: legibility top + bottom fade into page */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(0, 0, 0, 0.55) 0%, transparent 26%),
    linear-gradient(to top, var(--bg) 4%, rgba(5, 6, 10, 0.55) 34%, transparent 62%),
    radial-gradient(120% 90% at 50% 40%, transparent 55%, rgba(0, 0, 0, 0.6) 100%);
}

/* static scanlines + glow: cyberpunk texture, zero motion */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(to bottom, rgba(255, 255, 255, 0.028) 0 1px, transparent 1px 4px);
  box-shadow: inset 0 0 180px rgba(139, 43, 255, 0.08), inset 0 0 180px rgba(198, 255, 0, 0.05);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 clamp(16px, 5vw, 72px) clamp(72px, 12vh, 120px);
  max-width: 900px;
}

.kicker {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.42em;
  color: var(--lime);
  margin-bottom: 10px;
}

.glitch {
  font-weight: 700;
  font-size: clamp(3.4rem, 11vw, 8rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: #fff;
  text-shadow: 3px 0 0 var(--lime), -3px 0 0 var(--violet), 0 0 42px rgba(139, 43, 255, 0.4);
}

.tagline { margin-top: 14px; font-size: clamp(1.05rem, 2.4vw, 1.35rem); font-weight: 500; color: #cfd4e6; }

/* NEW: Hero highlight chips */
.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.highlight-chip {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--lime);
  border: 1px solid rgba(198, 255, 0, 0.3);
  background: rgba(198, 255, 0, 0.06);
  padding: 5px 14px;
  text-transform: uppercase;
}

.substats {
  margin-top: 14px;
  display: inline-block;
  font-family: var(--mono);
  font-size: clamp(0.8rem, 2vw, 0.95rem);
  letter-spacing: 0.08em;
  color: var(--amber);
  border: 1px solid #3a3320;
  background: rgba(0, 0, 0, 0.62);
  padding: 10px 18px;
}

.scroll-hint {
  position: absolute;
  z-index: 2;
  right: clamp(16px, 4vw, 48px);
  bottom: 22px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--muted);
}

/* ================= STRIP ================= */
.strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-align: center;
  padding: 14px 16px;
}

/* ================= SECTIONS ================= */
.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(56px, 9vh, 104px) clamp(16px, 4vw, 40px) 0;
}

.sec-index { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.3em; color: var(--lime); margin-bottom: 6px; }

.section h2 { font-size: clamp(2.2rem, 5.4vw, 3.4rem); font-weight: 700; line-height: 1; letter-spacing: 0.01em; }
.section h2 .accent { color: var(--lime); }
.sec-sub { color: var(--muted); margin-top: 8px; font-size: 1.05rem; }

/* ================= FEATURE SHOWCASE CARDS ================= */
.feature-showcase {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
  align-items: start;
}

.showcase-card {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 24px;
  position: relative;
  overflow: hidden;
  height: 100%;
}

.showcase-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(to bottom, var(--lime), var(--violet));
}

.showcase-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: rgba(198, 255, 0, 0.04);
  color: var(--lime);
}

.showcase-icon svg {
  width: 22px;
  height: 22px;
}

.showcase-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.showcase-tags {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.stag {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid rgba(255, 179, 0, 0.25);
  background: rgba(255, 179, 0, 0.06);
  padding: 2px 10px;
}

.showcase-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 6px;
  line-height: 1.25;
}

.showcase-body p {
  color: #b9bfd4;
  font-size: 0.92rem;
  line-height: 1.5;
  flex: 1;
}

/* ================= SCREENSHOT FILTER TABS ================= */
.screen-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  margin-bottom: 16px;
}

.screen-tab {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 8px 18px;
  cursor: pointer;
}

.screen-tab.active {
  color: #000;
  background: var(--lime);
  border-color: var(--lime);
}

.screen-tab:hover:not(.active) {
  color: var(--text);
  border-color: var(--lime);
}

/* ================= SCREENSHOTS: cascade cards =================
   Same recipe as the app's experimental quick-picks pager: cards tuck
   under each other (-28px overlap), off-center cards shrink to 0.92,
   fade to 0.65 and tilt 6° toward the middle. Scroll-driven only —
   nothing moves unless your finger moves. Overlap + counter activate
   only when JS runs (.js on <html>); without JS it's a plain row. */
.shots {
  position: relative;
  margin-top: 16px;
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  padding: 14px 4px 14px;
  perspective: 1200px;
  scrollbar-width: thin;
  scrollbar-color: var(--lime) var(--panel);
}

.shots figure {
  position: relative;
  flex: 0 0 auto;
  scroll-snap-align: center;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 10px 10px 12px;
}

.shots figure.hidden {
  display: none;
}

.js .shots { gap: 0; }
.js .shots figure { margin-right: -28px; }
.js .shots figure.hidden { margin-right: 0; }
.js .shots figure:last-child { margin-right: 0; }

.shots img {
  display: block;
  height: clamp(300px, 52vh, 460px);
  width: auto;
  background: #000;
}

/* Labeled captions from the reference site */
.shots figcaption {
  margin-top: 10px;
  text-align: center;
}

.shots figcaption strong {
  display: block;
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text);
}

.shots figcaption span {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-top: 2px;
}

.shots-void { display: none; }

.js .shots-void {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
}

.js .shots-void span {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--muted);
  white-space: nowrap;
}

.shots-meta {
  display: none;
  align-items: center;
  gap: 14px;
  margin-top: 16px;
  padding: 0 4px;
}

.js .shots-meta { display: flex; }

.shots-meta span {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--lime);
  white-space: nowrap;
}

.shots-bar {
  flex: 1;
  height: 4px;
  background: #1a2030;
  border-radius: 999px;
  overflow: hidden;
}

.shots-bar div {
  height: 100%;
  width: 11%;
  background: var(--lime);
  border-radius: 999px;
}

/* ================= DOWNLOAD SECTION ================= */
.dl-cards {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.dl-card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
}

.dl-card-recommended {
  border-color: var(--lime);
  border-width: 2px;
}

.dl-card-badge {
  position: absolute;
  top: 0;
  right: 0;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #000;
  background: var(--lime);
  padding: 4px 14px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 12px 100%);
}

.dl-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.dl-card h3 small {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
}

.dl-card-desc {
  color: #b9bfd4;
  font-size: 0.92rem;
  flex: 1;
}

.dl-card .btn {
  align-self: flex-start;
  font-size: 0.9rem;
  padding: 12px 28px;
}

/* Legacy download box (kept for metadata) */
.dl-box {
  margin-top: 30px;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: clamp(24px, 4vw, 44px);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(20px, 4vw, 48px);
  align-items: center;
}

.dl-icon { border: 1px solid var(--line); }

.dl-title { font-size: 1.6rem; font-weight: 700; }
.dl-ver { margin: 6px 0 0; }
.dl-ver span {
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: var(--lime);
  border: 1px solid #2e3d0e;
  background: rgba(198, 255, 0, 0.06);
  padding: 6px 14px;
  display: inline-block;
}

.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.12em;
  color: #000 !important;
  background: var(--lime);
  padding: 16px 34px;
  font-weight: 700;
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
}
.btn:hover { background: #fff; }

.dl-meta {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.dl-meta > div { background: var(--bg); padding: 12px 16px; }
.dl-meta dt { color: var(--muted); font-size: 0.68rem; letter-spacing: 0.24em; }
.dl-meta dd { color: var(--text); margin-top: 2px; }

/* ================= FAQ ================= */
.faq { margin-top: 30px; border-top: 1px solid var(--line); }

.faq details { border-bottom: 1px solid var(--line); background: var(--panel); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 20px;
  font-weight: 600;
  font-size: 1.12rem;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 14px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+";
  font-family: var(--mono);
  color: var(--lime);
  font-size: 1.3rem;
  flex: 0 0 auto;
}
.faq details[open] summary::before { content: "–"; color: var(--amber); }
.faq details p { padding: 0 20px 20px 48px; color: #b9bfd4; }

/* ================= FOOTER ================= */
footer {
  margin-top: clamp(56px, 9vh, 104px);
  border-top: 1px solid var(--line);
  background: #030408;
  padding: 40px clamp(16px, 4vw, 48px) 48px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px 40px;
  align-items: center;
  justify-content: space-between;
}

.foot-brand { display: flex; align-items: center; gap: 10px; font-family: var(--mono); letter-spacing: 0.18em; font-size: 0.9rem; }

footer nav { display: flex; gap: 24px; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.12em; }
footer nav a { color: var(--muted); }
footer nav a:hover { color: var(--lime); }

footer p { flex-basis: 100%; font-family: var(--mono); font-size: 0.75rem; color: #565c74; letter-spacing: 0.06em; }

/* ================= SMALL SCREENS ================= */
@media (max-width: 640px) {
  .topbar nav a:not(.nav-cta) { display: none; }
  .dl-box { grid-template-columns: 1fr; }
  .dl-icon { width: 72px; height: 72px; }
  .scroll-hint { display: none; }
  .feature-showcase { grid-template-columns: 1fr; }
  .dl-cards { grid-template-columns: 1fr; }
  .screen-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}