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

html {
  scroll-behavior: smooth;
}

html,
body {
  background: #0a0a0f;
  color: #e0e0e0;
  font-family: 'Share Tech Mono', Menlo, Consolas, monospace;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100dvh;
  overflow-x: hidden;
}

/* Faint tactical grid behind everything */
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(82, 182, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(82, 182, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 90%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 90%);
}

/* ─── Hero ─────────────────────────────────────── */

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  text-align: center;
  z-index: 2;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.logo {
  font-family: 'Orbitron', 'Share Tech Mono', monospace;
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 4.2rem);
  letter-spacing: 0.18em;
  color: #52b6ff;
  text-shadow:
    0 0 24px rgba(82, 182, 255, 0.6),
    0 0 48px rgba(82, 182, 255, 0.3);
  animation: logo-pulse 4.5s ease-in-out infinite;
}

.tagline {
  font-size: clamp(0.72rem, 2vw, 0.88rem);
  letter-spacing: 0.22em;
  color: #9db2c8;
  margin-top: 0.6rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 2.75rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid rgba(82, 182, 255, 0.35);
  border-radius: 2px;
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  color: #c4d8ec;
  background: rgba(82, 182, 255, 0.05);
  backdrop-filter: blur(2px);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #52b6ff;
  box-shadow: 0 0 12px #52b6ff, 0 0 4px #52b6ff;
  animation: blink 1.6s ease-in-out infinite;
}

.scroll-hint {
  position: absolute;
  bottom: 1.75rem;
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: rgba(157, 178, 200, 0.55);
  text-decoration: none;
  animation: bob 2.4s ease-in-out infinite;
  transition: color 0.2s ease;
}

.scroll-hint:hover {
  color: #52b6ff;
}

/* ─── Sections ─────────────────────────────────── */

.section {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
  z-index: 2;
}

.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: rgba(82, 182, 255, 0.75);
  margin-bottom: 1rem;
}

.section-title {
  font-family: 'Orbitron', monospace;
  font-weight: 700;
  font-size: clamp(1.4rem, 4vw, 2.6rem);
  letter-spacing: 0.05em;
  line-height: 1.18;
  color: #f0f5fa;
  margin-bottom: 1.5rem;
}

.section-body {
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  color: #b6c5d4;
  max-width: 60ch;
  letter-spacing: 0.02em;
}

/* ─── Briefing ─────────────────────────────────── */

.briefing {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
}

.briefing > .section-label {
  margin-bottom: 0;
}

.briefing-video {
  margin-top: 1.5rem;
}

@media (min-width: 860px) {
  .briefing {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 3.5rem;
    row-gap: 1rem;
  }

  .briefing > .section-label {
    grid-column: 1;
    grid-row: 1;
  }

  .briefing-content {
    grid-column: 1;
    grid-row: 2;
  }

  .briefing-video {
    grid-column: 2;
    grid-row: 2;
    margin-top: 0;
  }
}

.briefing-content {
  min-width: 0;
}

.briefing-video {
  position: relative;
  width: 100%;
  align-self: center;
  aspect-ratio: 1015 / 720;
  border: 1px solid rgba(82, 182, 255, 0.22);
  border-radius: 2px;
  overflow: hidden;
  background: rgba(82, 182, 255, 0.04);
  box-shadow:
    0 0 0 1px rgba(82, 182, 255, 0.05),
    0 24px 60px -20px rgba(0, 0, 0, 0.6),
    0 0 80px -30px rgba(82, 182, 255, 0.35);
}

.briefing-video::before,
.briefing-video::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  z-index: 2;
  pointer-events: none;
}

.briefing-video::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid #52b6ff;
  border-left: 2px solid #52b6ff;
}

.briefing-video::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid #52b6ff;
  border-right: 2px solid #52b6ff;
}

.briefing-video video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ─── Capabilities ─────────────────────────────── */

.capability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.capability {
  position: relative;
  padding: 2rem 1.5rem;
  background: rgba(82, 182, 255, 0.03);
  border: 1px solid rgba(82, 182, 255, 0.18);
  border-radius: 2px;
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
}

.capability:hover {
  border-color: rgba(82, 182, 255, 0.5);
  background: rgba(82, 182, 255, 0.06);
  transform: translateY(-2px);
}

.capability::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  width: 16px;
  height: 16px;
  border-top: 2px solid #52b6ff;
  border-left: 2px solid #52b6ff;
  opacity: 0.7;
}

.capability::after {
  content: '';
  position: absolute;
  bottom: -1px;
  right: -1px;
  width: 16px;
  height: 16px;
  border-bottom: 2px solid #52b6ff;
  border-right: 2px solid #52b6ff;
  opacity: 0.7;
}

.capability-num {
  font-family: 'Orbitron', monospace;
  font-weight: 700;
  font-size: 0.78rem;
  color: #52b6ff;
  letter-spacing: 0.22em;
  margin-bottom: 0.85rem;
}

.capability-title {
  font-family: 'Orbitron', monospace;
  font-weight: 900;
  font-size: 1.02rem;
  letter-spacing: 0.1em;
  color: #f0f5fa;
  margin-bottom: 0.85rem;
}

.capability p {
  font-size: 0.9rem;
  color: #97a8ba;
  line-height: 1.65;
}

/* ─── Footer ───────────────────────────────────── */

.footer {
  padding: 3rem 1.5rem 4rem;
  text-align: center;
  border-top: 1px solid rgba(82, 182, 255, 0.12);
  position: relative;
  z-index: 2;
}

.footer-status {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: #ffaa00;
  text-shadow: 0 0 12px rgba(255, 170, 0, 0.35);
  margin-bottom: 1.25rem;
}

.footer-meta {
  font-size: 0.62rem;
  letter-spacing: 0.28em;
  color: #66758a;
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
}

.sep {
  color: rgba(82, 182, 255, 0.35);
}

/* ─── Animations ───────────────────────────────── */

@keyframes logo-pulse {
  0%, 100% {
    text-shadow: 0 0 24px rgba(82, 182, 255, 0.6), 0 0 48px rgba(82, 182, 255, 0.3);
  }
  50% {
    text-shadow: 0 0 32px rgba(82, 182, 255, 0.85), 0 0 64px rgba(82, 182, 255, 0.42);
  }
}

@keyframes blink {
  0%, 70% { opacity: 1; }
  85% { opacity: 0.35; }
  100% { opacity: 1; }
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

@media (prefers-reduced-motion: reduce) {
  .logo, .status-dot, .scroll-hint { animation: none; }
}