/* ===== Design tokens ===== */
:root {
  --bg: #0a0a0a;
  --bg-elev: #1a1a1a;
  --bg-elev-2: #252525;
  --border: #333;
  --text: #e0e0e0;
  --text-dim: #9a9aa8;
  --accent: #00ff41;
  --accent-glow: rgba(0, 255, 65, 0.5);
  --accent-blue: #4a9eff;
  --accent-cyan: #00ffff;
  --accent-purple: #8a2be2;
  --accent-pink: #ff69b4;
  --accent-orange: #ff8c42;
  --btn-bg: #1c5fb8;
  --btn-bg-hover: #144484;
  --success: #4caf50;
  --radius: 8px;
  --max-width: 1120px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  --font-body: 'Chakra Petch', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Orbitron', 'Monaco', 'Menlo', monospace;
  --font-hero: 'Audiowide', 'Orbitron', 'Monaco', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
}

img { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ===== Header / Nav ===== */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  white-space: nowrap;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--text);
}
.brand span { color: var(--accent); text-shadow: 0 0 8px var(--accent-glow); }
.brand img {
  height: 44px;
  width: auto;
  display: block;
}

nav.main-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 2px;
  margin: 0;
  padding: 0;
}

nav.main-nav a {
  position: relative;
  display: inline-block;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid transparent;
  overflow: hidden;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
nav.main-nav a::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(135deg,
    rgba(138, 43, 226, 0.20) 0%,
    rgba(255, 105, 180, 0.16) 50%,
    rgba(0, 255, 255, 0.16) 100%);
  opacity: 0;
  transition: opacity 0.25s ease;
}
nav.main-nav a:hover,
nav.main-nav a:focus-visible {
  color: var(--accent);
  text-decoration: none;
  border-color: rgba(0, 255, 65, 0.4);
  text-shadow: 0 0 6px var(--accent-glow), 0 0 12px var(--accent-glow);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0, 255, 65, 0.18);
}
nav.main-nav a:hover::before,
nav.main-nav a:focus-visible::before { opacity: 1; }
nav.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
  transform: translateX(-50%);
}
nav.main-nav a:hover::after,
nav.main-nav a:focus-visible::after { width: 100%; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 1rem;
}

@media (max-width: 780px) {
  nav.main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    display: none;
  }
  nav.main-nav.open { display: block; }
  nav.main-nav ul {
    flex-direction: column;
    padding: 16px 24px 20px;
    gap: 16px;
  }
  .nav-toggle { display: inline-block; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  padding: 90px 0 70px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse at top,
      rgba(138, 43, 226, 0.10) 0%,
      rgba(255, 105, 180, 0.06) 30%,
      rgba(0, 255, 255, 0.04) 55%,
      transparent 75%);
}
.hero .container { position: relative; z-index: 1; }

.firework-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.firework {
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-display), monospace;
  font-weight: 700;
  font-size: 15px;
}
.firework .spark {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  animation: sparkBurst 1.4s ease-out forwards;
}
@keyframes sparkBurst {
  0% { transform: translate(0, 0) scale(1); opacity: 1; }
  70% { opacity: 0.9; }
  100% { transform: translate(var(--dx), var(--dy)) scale(0.5); opacity: 0; }
}

.hero-photo {
  position: relative;
  background:
    linear-gradient(180deg, rgba(10,10,10,0.55) 0%, rgba(10,10,10,0.88) 75%, var(--bg) 100%),
    url("images/logo.png") center 20% / cover no-repeat;
}

.hero-lab {
  position: relative;
  overflow: hidden;
}
.hero-lab::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("images/logo.png");
  background-size: cover;
  background-position: center;
  opacity: 0.22;
  filter: brightness(1.3) contrast(1.4) saturate(1.3) hue-rotate(280deg);
  animation: heroLabMove 90s ease-in-out infinite;
  z-index: 0;
}
.hero-lab::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,10,10,0.65) 0%, rgba(10,10,10,0.92) 80%, var(--bg) 100%);
  z-index: 1;
}
.hero-lab .container { position: relative; z-index: 2; }
@keyframes heroLabMove {
  0% { transform: scale(1.1); background-position: center center; }
  50% { transform: scale(1.3); background-position: 30% 70%; }
  100% { transform: scale(1.1); background-position: center center; }
}

.hero h1 {
  font-family: var(--font-hero);
  font-weight: 400;
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin: 0 0 18px;
  line-height: 1.2;
  letter-spacing: 0.02em;
}
.hero h1 .accent { color: var(--accent); text-shadow: 0 0 10px var(--accent-glow); }

.hero h1.glitch-title {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: linear-gradient(90deg, var(--accent-pink) 0%, var(--accent-purple) 45%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent);
  paint-order: stroke fill;
  filter: drop-shadow(0 0 6px var(--accent-glow));
}
.hero p.lead {
  color: var(--text-dim);
  font-size: 1.15rem;
  max-width: 640px;
  margin: 0 auto 32px;
}

.hero-ctas { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.placeholder-banner {
  background: var(--accent);
  color: #04170a;
  font-weight: 700;
  font-size: 0.85rem;
  text-align: center;
  padding: 8px 16px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
}
.btn-primary { background: linear-gradient(135deg, var(--btn-bg), var(--accent-purple)); color: #fff; }
.btn-primary:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(74, 158, 255, 0.3);
}
.btn-secondary { background: transparent; color: var(--text); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--accent-blue); color: var(--accent-blue); text-decoration: none; }
.btn-block { width: 100%; text-align: center; }

/* ===== Trust bar ===== */
.trust-bar {
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
}
.trust-bar ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 36px;
  margin: 0;
  padding: 22px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.trust-bar li {
  color: var(--text-dim);
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.trust-bar li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}

/* ===== Sections ===== */
section { padding: 72px 0; }
section.tight { padding: 48px 0; }
section.alt { background: var(--bg-elev); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent-glow);
  margin: 0 0 12px;
}
.section-head h2::before {
  content: "[";
  margin-right: 0.5rem;
  text-shadow: 0 0 5px var(--accent-glow);
}
.section-head h2::after {
  content: "]";
  margin-left: 0.5rem;
  text-shadow: 0 0 5px var(--accent-glow);
}
.section-head p { color: var(--text-dim); margin: 0; }
.eyebrow {
  color: var(--accent-cyan);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}

/* ===== Cards / grid ===== */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(138, 43, 226, 0.2), 0 0 20px rgba(255, 105, 180, 0.1);
}
.card h3 { font-family: var(--font-display); font-weight: 600; margin: 0 0 10px; font-size: 1.05rem; color: var(--accent-blue); }
.card p { color: var(--text-dim); margin: 0; font-size: 0.95rem; }
a.card {
  display: block;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}
a.card:hover { text-decoration: none; }
.card-link-cta {
  display: inline-block;
  margin-top: 14px;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-shadow: 0 0 6px var(--accent-glow);
}
.card-photo-wrap {
  margin: -28px -28px 20px;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--bg);
}
.card-downloads {
  position: relative;
  overflow: visible;
}
.download-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  width: min(680px, 92vw);
  max-height: 80vh;
  overflow-y: auto;
  background: var(--bg-elev-2);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, -45%);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 500;
  box-shadow: var(--shadow);
}
.card-downloads:hover .download-panel,
.card-downloads:focus-within .download-panel {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%);
}
.download-group + .download-group { margin-top: 16px; }
.download-group h4 {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 8px;
  text-shadow: 0 0 6px var(--accent-glow);
}
.download-group ul { list-style: none; margin: 0; padding: 0; }
.download-group a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 0;
  color: var(--text);
  font-size: 0.9rem;
}
.download-group a:hover { color: var(--accent-blue); text-decoration: none; }
.card-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.card .icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(74, 158, 255, 0.15);
  color: var(--accent-blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
}

/* ===== Stats ===== */
.stats { display: flex; justify-content: center; gap: 60px; flex-wrap: wrap; text-align: center; }
.stat .num { font-family: var(--font-display); font-size: 2.4rem; font-weight: 700; color: var(--accent); text-shadow: 0 0 10px var(--accent-glow); }
.stat .label { color: var(--text-dim); font-size: 0.9rem; }

/* ===== Estimator ===== */
.estimator {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  max-width: 720px;
  margin: 0 auto;
}
.estimator .field { margin-bottom: 20px; }
.estimator label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 0.92rem; }
.estimator select,
.estimator input[type="number"],
.estimator input[type="text"],
.estimator input[type="email"],
.estimator input[type="tel"],
.estimator textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-body);
}
.estimator select:focus,
.estimator input:focus,
.estimator textarea:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.35);
}

/* ===== FAQ ===== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 24px;
}
.faq-item summary {
  cursor: pointer;
  padding: 18px 0;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--accent);
  text-shadow: 0 0 6px var(--accent-glow);
  font-size: 1.3rem;
  flex-shrink: 0;
  transition: transform 0.15s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  color: var(--text-dim);
  margin: 0 0 20px;
  font-size: 0.95rem;
}


/* ===== Slideshow ===== */
.slideshow {
  position: relative;
  width: 100%;
  max-width: 460px;
  margin: 20px auto 0;
  aspect-ratio: 898 / 643;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg);
}
.slideshow img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 1s ease;
}
.slideshow img.active {
  opacity: 1;
}
.slideshow-photos {
  max-width: 760px;
  aspect-ratio: 4 / 3;
}
.slideshow-photos img {
  object-fit: cover;
}
.slideshow-device {
  max-width: 760px;
  aspect-ratio: 921 / 656;
  background: url("../images/lab/pager-theme/frame.png") center / 100% 100% no-repeat;
  border: none;
  border-radius: 8.14% / 11.43%;
}
.slideshow-device img {
  left: 17.05%;
  top: 12.2%;
  right: auto;
  bottom: auto;
  width: 65.04%;
  height: 42.23%;
  object-fit: cover;
}

/* ===== Matrix Rain (Lab section only) ===== */
#matrix-rain {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.45;
}

/* ===== Forms ===== */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.form-grid .full { grid-column: 1 / -1; }

/* ===== Map ===== */
.map-frame {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.map-frame iframe { width: 100%; height: 420px; border: 0; display: block; }

/* ===== Video Embed ===== */
.video-embed {
  position: relative;
  display: block;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--bg-elev-2);
  background-size: cover;
  background-position: center;
}
.video-embed-play {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 68px;
  height: 68px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.video-embed-play::after {
  content: "";
  margin-left: 4px;
  border-style: solid;
  border-width: 12px 0 12px 20px;
  border-color: transparent transparent transparent var(--accent);
}
.video-embed:hover .video-embed-play,
.video-embed:focus-visible .video-embed-play {
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 0 20px var(--accent-glow);
}

/* ===== Footer ===== */
footer.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
  padding: 48px 0 28px;
  color: var(--text-dim);
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 {
  font-family: var(--font-display);
  color: var(--accent);
  text-shadow: 0 0 6px var(--accent-glow);
  margin: 0 0 14px;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.footer-grid a { color: var(--text-dim); }
.footer-grid a:hover { color: var(--accent-blue); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  text-align: center;
  font-size: 0.82rem;
}

/* ===== Skip link ===== */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--bg-elev);
  color: var(--text);
  padding: 12px 20px;
  border: 1px solid var(--accent);
  border-radius: 0 0 8px 0;
  z-index: 100;
}
.skip-link:focus {
  left: 0;
}

/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-32 { margin-top: 32px; }