/* ============================================================
   redLUX Guitar — Site Stylesheet
   Premium dark / black-red / glassmorphic, high-tech aesthetic
   ============================================================ */

:root {
  /* Palette */
  --black: #040404;
  --black-soft: #0a0a0c;
  --black-elevated: #101013;
  --surface: rgba(22, 22, 26, 0.55);
  --surface-strong: rgba(22, 22, 26, 0.78);
  --surface-border: rgba(255, 45, 65, 0.22);
  --surface-border-strong: rgba(255, 45, 65, 0.45);

  --red: #ff1f3d;
  --red-2: #ff4f63;
  --red-deep: #b3001f;
  --red-glow-soft: 0 0 24px rgba(255, 31, 61, 0.35);
  --red-glow: 0 0 40px rgba(255, 31, 61, 0.55);
  --red-glow-strong: 0 0 70px rgba(255, 31, 61, 0.65);

  --text: #f4f4f6;
  --text-dim: #a6a6b0;
  --text-faint: #6f6f78;

  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 28px;

  --font-display: 'Orbitron', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --max-width: 1180px;
  --header-h: 76px;
}

@media (prefers-color-scheme: light) {
  :root { color-scheme: dark; }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  background: radial-gradient(circle at 50% -10%, #150509 0%, var(--black) 55%) fixed;
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: 0.02em;
  margin: 0 0 0.5em;
  line-height: 1.15;
}

h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
p { color: var(--text-dim); margin: 0 0 1em; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Background FX (decorative, non-interactive) ---------- */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}
.bg-glow span {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  background: radial-gradient(circle, rgba(255, 31, 61, 0.55), transparent 70%);
}
.bg-glow .g1 { width: 520px; height: 520px; top: -180px; left: -120px; }
.bg-glow .g2 { width: 460px; height: 460px; top: 30%; right: -160px; opacity: 0.35; }
.bg-glow .g3 { width: 380px; height: 380px; bottom: -160px; left: 30%; opacity: 0.3; }

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  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: 42px 42px;
  mask-image: radial-gradient(circle at 50% 0%, black, transparent 75%);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(5, 5, 6, 0.55);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--surface-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.brand-mark {
  height: 36px;
  width: 36px;
  border-radius: 9px;
  display: block;
  filter: drop-shadow(0 0 14px rgba(255, 31, 61, 0.45));
}
.brand-wordmark {
  height: 25px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  font-size: 0.94rem;
  color: var(--text-dim);
  position: relative;
  padding: 6px 2px;
  transition: color 0.2s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--red);
  box-shadow: var(--red-glow-soft);
  border-radius: 2px;
}

.nav-cta {
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--red), var(--red-deep));
  box-shadow: var(--red-glow-soft);
  color: #fff !important;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: var(--red-glow); }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  align-items: center; justify-content: center;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  display: block;
  width: 18px; height: 2px;
  background: var(--text);
  position: relative;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }

@media (max-width: 880px) {
  .nav-links { position: fixed; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: rgba(6,6,8,0.96); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--surface-border);
    padding: 8px 24px 18px; transform: translateY(-110%); opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease; }
  .nav-links.open { transform: translateY(0); opacity: 1; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.04); }
  .nav-cta { display: inline-block; margin-top: 10px; }
  .nav-toggle { display: flex; }
}

/* ---------- Language Switcher ---------- */
.lang-switch { position: relative; margin-left: 14px; }
.lang-trigger {
  display: flex; align-items: center; gap: 7px;
  height: 38px; padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text-dim);
  font-size: 0.82rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.lang-trigger:hover { border-color: var(--surface-border-strong); color: var(--text); }
.lang-trigger .lang-flag { font-size: 1rem; line-height: 1; }
.lang-trigger .lang-chevron { font-size: 0.6rem; opacity: 0.6; transition: transform 0.2s ease; }
.lang-switch.open .lang-trigger .lang-chevron { transform: rotate(180deg); }
.lang-menu {
  position: absolute; top: calc(100% + 10px); right: 0;
  min-width: 190px;
  list-style: none; margin: 0; padding: 8px;
  background: rgba(10, 10, 12, 0.97);
  backdrop-filter: blur(20px);
  border: 1px solid var(--surface-border-strong);
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.55);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
  z-index: 200;
}
.lang-switch.open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: 8px;
  font-size: 0.86rem; color: var(--text-dim);
  transition: background 0.15s ease, color 0.15s ease;
}
.lang-menu a:hover { background: rgba(255,255,255,0.06); color: var(--text); }
.lang-menu a.active { color: var(--red-2); }
.lang-menu a .lang-flag { font-size: 1.05rem; }
@media (max-width: 880px) {
  .lang-switch { margin-left: auto; margin-right: 10px; }
}
@media (max-width: 480px) {
  .lang-trigger { padding: 0 9px; gap: 5px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--red), var(--red-deep));
  color: #fff;
  box-shadow: var(--red-glow-soft);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: var(--red-glow); }
.btn-ghost {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  color: var(--text);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { border-color: var(--surface-border-strong); transform: translateY(-3px); }
.btn-lg { padding: 16px 34px; font-size: 1.02rem; }

/* ---------- Hero ---------- */
.hero {
  padding: calc(var(--header-h) + 90px) 0 90px;
  position: relative;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red-2);
  background: rgba(255, 31, 61, 0.08);
  border: 1px solid var(--surface-border);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--red); box-shadow: var(--red-glow-soft); }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero h1 .accent { color: var(--red-2); text-shadow: 0 0 30px rgba(255,31,61,0.5); }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 30px; }
.hero-meta { display: flex; gap: 26px; margin-top: 36px; flex-wrap: wrap; }
.hero-meta div { display: flex; flex-direction: column; }
.hero-meta strong { font-family: var(--font-display); font-size: 1.4rem; color: var(--text); }
.hero-meta span { font-size: 0.82rem; color: var(--text-faint); }

.about-icon {
  display: block;
  width: 84px;
  height: 84px;
  border-radius: 22px;
  margin-bottom: 22px;
  filter: drop-shadow(0 0 30px rgba(255, 31, 61, 0.55));
}

.phone-frame {
  position: relative;
  margin: 0 auto;
  width: min(340px, 82vw);
  border-radius: 46px;
  background: linear-gradient(160deg, #15151a, #050505);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 0 0 1px rgba(255,31,61,0.15), var(--red-glow-strong);
  padding: 14px;
  display: flex;
  align-items: flex-start;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.phone-frame.is-floating { animation: phone-float 6s ease-in-out infinite; }
.phone-frame.is-compact { width: min(240px, 65vw); }
@keyframes phone-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
@media (prefers-reduced-motion: reduce) {
  .phone-frame.is-floating { animation: none; }
}
.phone-frame .screen {
  width: 100%;
  aspect-ratio: 1320 / 2868;
  border-radius: 34px;
  background: linear-gradient(160deg, #14060a 0%, #050405 70%);
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255,255,255,0.05);
}
.phone-frame .screen img { width: 100%; height: 100%; object-fit: cover; }
.phone-frame .screen .placeholder-label {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 20px;
  font-size: 0.78rem; color: var(--text-faint);
  background: repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0 10px, transparent 10px 20px);
}

/* ---------- Marquee ---------- */
.marquee {
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
  background: linear-gradient(90deg, rgba(255,31,61,0.05), rgba(255,31,61,0.01));
  overflow: hidden;
  padding: 18px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
.marquee-track {
  display: flex;
  width: max-content;
  gap: 0;
  animation: marquee-scroll 32s linear infinite;
}
.marquee-track span {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-size: 0.86rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0 22px;
  white-space: nowrap;
}
.marquee-track span::after {
  content: "◆";
  margin-left: 22px;
  color: var(--red);
  font-size: 0.6rem;
  vertical-align: middle;
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}

/* ---------- Sections ---------- */
section { padding: 90px 0; position: relative; }
.section-head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.section-head.left { margin: 0 0 48px; text-align: left; }

/* ---------- Cards / Glass panels ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  backdrop-filter: blur(16px) saturate(130%);
  -webkit-backdrop-filter: blur(16px) saturate(130%);
  padding: 32px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.card:hover { transform: translateY(-6px); border-color: var(--surface-border-strong); box-shadow: var(--red-glow-soft); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 960px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .feature-grid { grid-template-columns: 1fr; } }

.feature-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(255,31,61,0.18), rgba(255,31,61,0.04));
  border: 1px solid var(--surface-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
  box-shadow: inset 0 0 20px rgba(255,31,61,0.12);
}

.feature-grid .card h3 { color: var(--text); }
.feature-grid .card p { margin-bottom: 0; font-size: 0.93rem; }

/* ---------- Feature rows (zig-zag) ---------- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.feature-row + .feature-row { margin-top: 110px; }
.feature-row-content .eyebrow { margin-bottom: 18px; }
.feature-row-content h2 { margin-bottom: 0.5em; }
.feature-row-content p { font-size: 1.02rem; max-width: 520px; }
.feature-row-content ul {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.feature-row-content ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-dim);
  font-size: 0.95rem;
}
.feature-row-content ul li::before {
  content: "";
  flex-shrink: 0;
  width: 8px; height: 8px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: var(--red-glow-soft);
}
.feature-row-media { display: flex; justify-content: center; }
.feature-row-media .phone-frame { width: min(280px, 70vw); }
@media (max-width: 880px) {
  .feature-row { grid-template-columns: 1fr; gap: 36px; }
  .feature-row-media { order: -1; }
  .feature-row + .feature-row { margin-top: 70px; }
  .feature-row-content p { max-width: none; }
}

.trio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 56px;
  text-align: center;
}
.trio-grid .phone-frame { width: min(190px, 60vw); margin-bottom: 18px; }
.trio-grid h3 { font-size: 1.05rem; margin-bottom: 4px; }
.trio-grid p { font-size: 0.86rem; margin-bottom: 0; }
@media (max-width: 760px) { .trio-grid { grid-template-columns: 1fr; max-width: 280px; margin: 0 auto 40px; } }

/* ---------- Stats bar ---------- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
  padding: 40px 0;
}
@media (max-width: 760px) { .stats-bar { grid-template-columns: repeat(2, 1fr); } }
.stats-bar .stat { text-align: center; }
.stats-bar strong { display: block; font-family: var(--font-display); font-size: 2rem; color: var(--red-2); text-shadow: 0 0 22px rgba(255,31,61,0.4); }
.stats-bar span { font-size: 0.84rem; color: var(--text-faint); }

/* ---------- Gallery ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 940px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .gallery-grid { grid-template-columns: 1fr; } }

.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  position: relative;
  aspect-ratio: 1320 / 2868;
  display: block;
  width: 100%;
  padding: 0;
  margin: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.gallery-item:hover, .gallery-item:focus-visible {
  transform: translateY(-6px);
  border-color: var(--surface-border-strong);
  box-shadow: var(--red-glow-soft);
  outline: none;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; }
.gallery-item .tag {
  position: absolute; left: 14px; bottom: 14px;
  background: rgba(0,0,0,0.55);
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.76rem;
  backdrop-filter: blur(8px);
}
/* ---------- Timeline (About) ---------- */
.timeline {
  position: relative;
  padding-left: 28px;
  border-left: 1px solid var(--surface-border);
}
.timeline .item { position: relative; margin-bottom: 38px; }
.timeline .item::before {
  content: "";
  position: absolute; left: -34px; top: 4px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: var(--red-glow-soft);
}
.timeline h3 { margin-bottom: 6px; color: var(--text); }

/* ---------- Pull quote ---------- */
.pull-quote {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  color: var(--text);
  border-left: 3px solid var(--red);
  padding-left: 24px;
  margin: 40px 0;
  line-height: 1.4;
}

/* ---------- CTA band ---------- */
.cta-band {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(255,31,61,0.16), rgba(10,10,12,0.4));
  border: 1px solid var(--surface-border-strong);
  padding: 64px;
  text-align: center;
  box-shadow: var(--red-glow-soft);
}
@media (max-width: 700px) { .cta-band { padding: 40px 24px; } }

/* ---------- Legal pages ---------- */
.legal {
  max-width: 820px;
  margin: 0 auto;
}
.legal h2 { margin-top: 2em; color: var(--text); }
.legal h3 { color: var(--text); margin-top: 1.4em; }
.legal p, .legal li { color: var(--text-dim); }
.legal ul { padding-left: 22px; }
.legal .updated { color: var(--text-faint); font-size: 0.86rem; margin-bottom: 40px; }

/* ---------- Form (download/coming soon) ---------- */
.notify-form {
  display: flex;
  gap: 12px;
  max-width: 460px;
  margin: 28px auto 0;
  flex-wrap: wrap;
  justify-content: center;
}
.notify-form input[type="email"] {
  flex: 1;
  min-width: 220px;
  padding: 14px 18px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  font-size: 0.95rem;
}
.notify-form input::placeholder { color: var(--text-faint); }
.notify-form input:focus { outline: none; border-color: var(--red); box-shadow: var(--red-glow-soft); }
.form-note { font-size: 0.8rem; color: var(--text-faint); margin-top: 14px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--surface-border);
  padding: 60px 0 30px;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-faint); margin-bottom: 14px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-grid a { color: var(--text-dim); font-size: 0.92rem; transition: color 0.2s ease; }
.footer-grid a:hover { color: var(--red-2); }
.footer-bottom {
  margin-top: 50px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  font-size: 0.82rem;
  color: var(--text-faint);
}

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---------- Misc ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--red); color: #fff; padding: 10px 16px; border-radius: 8px; z-index: 200;
}
.skip-link:focus { left: 12px; top: 12px; }

::selection { background: rgba(255,31,61,0.35); }

.badge-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 24px; justify-content: center; }
.platform-badge {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 18px;
  border-radius: 12px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  font-size: 0.86rem;
}

body.lightbox-open { overflow: hidden; }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 4, 4, 0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.lightbox-stage {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 88vw;
  max-height: 100%;
  transform: scale(0.96);
  transition: transform 0.25s ease;
}
.lightbox.open .lightbox-stage { transform: scale(1); }
.lightbox-stage img {
  width: auto;
  height: auto;
  max-width: min(420px, 88vw);
  max-height: min(74vh, 820px);
  object-fit: contain;
  border-radius: var(--radius);
  border: 1px solid var(--surface-border-strong);
  box-shadow: var(--red-glow-strong);
}
.lightbox-caption {
  text-align: center;
  margin-top: 16px;
  color: var(--text-dim);
  font-size: 0.9rem;
}
.lightbox-close, .lightbox-prev, .lightbox-next {
  position: absolute;
  border: 1px solid var(--surface-border);
  background: var(--surface-strong);
  color: var(--text);
  border-radius: 50%;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  backdrop-filter: blur(10px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  z-index: 2;
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover {
  border-color: var(--surface-border-strong);
  box-shadow: var(--red-glow-soft);
  transform: translateY(-2px);
}
.lightbox-close { top: 0; right: 0; transform: translate(50%, -50%); }
.lightbox-prev, .lightbox-next {
  top: 50%;
  transform: translateY(-50%);
}
.lightbox-prev { left: -22px; }
.lightbox-next { right: -22px; }
@media (max-width: 600px) {
  .lightbox { padding: 20px; }
  .lightbox-prev { left: 4px; }
  .lightbox-next { right: 4px; }
}