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

:root {
  --black: #000000;
  --white: #ffffff;
  --gray-900: #0a0a0a;
  --gray-800: #141414;
  --gray-700: #1f1f1f;
  --gray-600: #2a2a2a;
  --gray-400: #666666;
  --gray-200: #cccccc;
  --gray-100: #e8e8e8;
  --mono: 'Share Tech Mono', monospace;
  --sans: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.6;
  cursor: crosshair;
}

a { color: inherit; text-decoration: none; }

/* ── TOP BAR ── */
#topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background: var(--black);
  border-bottom: 1px solid var(--gray-700);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  z-index: 1000;
}

.logo {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-mark {
  width: 28px; height: 28px;
  border: 1px solid var(--white);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}

.logo-mark::before,
.logo-mark::after {
  content: '';
  position: absolute;
  background: var(--white);
}

.logo-mark::before { width: 1px; height: 60%; }
.logo-mark::after  { width: 60%; height: 1px; }

nav { display: flex; gap: 32px; }

nav a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
  transition: color 0.2s;
}

nav a:hover { color: var(--white); }

.topbar-right {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--gray-400);
  display: flex;
  align-items: center;
  gap: 20px;
}

.status-dot {
  width: 6px; height: 6px;
  background: var(--white);
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

/* ── LAYOUT ── */
#root {
  padding-top: 56px;
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

/* ── SIDEBAR ── */
#sidebar {
  position: sticky;
  top: 56px;
  height: calc(100vh - 56px);
  border-right: 1px solid var(--gray-700);
  padding: 40px 24px;
  display: flex;
  flex-direction: column;
  gap: 40px;
  overflow-y: auto;
}

.sidebar-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 10px;
}

.sidebar-value {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gray-200);
  line-height: 1.8;
}

.sidebar-nav { display: flex; flex-direction: column; gap: 4px; }

.sidebar-nav a {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gray-100);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-nav a::before {
  content: '//';
  font-size: 9px;
  color: var(--gray-600);
}

.sidebar-nav a:hover { color: var(--white); }

.sidebar-divider {
  height: 1px;
  background: var(--gray-700);
}

.clearance-badge {
  border: 1px solid var(--gray-600);
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--gray-400);
  line-height: 1.6;
}

.clearance-badge span {
  display: block;
  font-size: 9px;
  color: var(--gray-600);
  margin-top: 4px;
}

/* ── MAIN ── */
#main { overflow-x: hidden; }

/* ── HERO ── */
#hero {
  min-height: 75vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 64px 60px;
  border-bottom: 1px solid var(--gray-700);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--gray-800) 1px, transparent 1px),
    linear-gradient(90deg, var(--gray-800) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.5;
}

.hero-scanline {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--white);
  opacity: 0;
  animation: scanline 3s ease-out 0.3s forwards;
}

@keyframes scanline {
  0%   { top: 0;    opacity: 0.8; }
  90%  { top: 100%; opacity: 0.4; }
  100% { top: 100%; opacity: 0; }
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gray-200);
  margin-bottom: 20px;
  position: relative;
}

.hero-title {
  font-family: var(--mono);
  font-size: clamp(36px, 5vw, 72px);
  letter-spacing: -0.01em;
  line-height: 1.05;
  font-weight: 400;
  position: relative;
  max-width: 700px;
}

.hero-title em {
  font-style: normal;
  color: var(--gray-400);
}

.hero-sub {
  margin-top: 28px;
  font-size: 14px;
  color: var(--gray-200);
  max-width: 480px;
  line-height: 1.7;
  position: relative;
}

.hero-meta {
  margin-top: 48px;
  display: flex;
  gap: 48px;
  position: relative;
}

.hero-stat-num {
  font-family: var(--mono);
  font-size: 28px;
  letter-spacing: -0.02em;
  display: block;
}

.hero-stat-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-400);
}

/* ── SECTIONS ── */
.section {
  padding: 80px 60px;
  border-bottom: 1px solid var(--gray-700);
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 56px;
}

.section-tag {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray-400);
  flex-shrink: 0;
}

.section-title {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.section-rule {
  flex: 1;
  height: 1px;
  background: var(--gray-700);
  margin-left: 8px;
}

/* ── PRODUCT ── */
#product .product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.product-visual {
  border: 1px solid var(--gray-700);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--gray-900);
  margin-right: 48px;
}

.product-reticle {
  position: relative;
  width: 120px; height: 120px;
}

.product-reticle::before,
.product-reticle::after {
  content: '';
  position: absolute;
  background: var(--gray-600);
}

.product-reticle::before {
  width: 1px; height: 100%;
  left: 50%; top: 0;
}

.product-reticle::after {
  width: 100%; height: 1px;
  top: 50%; left: 0;
}

.product-reticle-ring {
  position: absolute;
  inset: 0;
  border: 1px solid var(--gray-700);
  border-radius: 50%;
}

.product-reticle-ring-inner {
  position: absolute;
  inset: 20%;
  border: 1px solid var(--gray-600);
  border-radius: 50%;
}

.product-visual-label {
  position: absolute;
  bottom: 12px; left: 16px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--gray-600);
  text-transform: uppercase;
}

.product-info { padding: 0; }

.product-name {
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 400;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.product-class {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 28px;
}

.product-desc {
  font-size: 14px;
  color: var(--gray-200);
  line-height: 1.8;
  margin-bottom: 36px;
}

.spec-table { width: 100%; border-collapse: collapse; }

.spec-table tr { border-top: 1px solid var(--gray-700); }

.spec-table td {
  padding: 10px 0;
  font-family: var(--mono);
  font-size: 13px;
}

.spec-table td:first-child {
  color: var(--gray-400);
  letter-spacing: 0.1em;
  width: 40%;
}

.spec-table td:last-child { color: var(--white); }

/* ── PEOPLE ── */
.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1px;
  background: var(--gray-700);
  border: 1px solid var(--gray-700);
}

.person-card {
  background: var(--black);
  padding: 28px 24px;
  transition: background 0.2s;
}

.person-card:hover { background: var(--gray-900); }

.person-avatar {
  width: 48px; height: 48px;
  border: 1px solid var(--gray-600);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono);
  font-size: 14px;
  margin-bottom: 16px;
  color: var(--gray-400);
}

.person-name {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.person-title {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 12px;
}

.person-bio {
  font-size: 12px;
  color: var(--gray-400);
  line-height: 1.6;
}

/* ── ADVISORS ── */
.advisor-list { display: flex; flex-direction: column; }

.advisor-row {
  display: grid;
  grid-template-columns: 2fr 2fr 3fr;
  gap: 24px;
  align-items: baseline;
  padding: 20px 0;
  border-top: 1px solid var(--gray-700);
}

.advisor-row:last-child { border-bottom: 1px solid var(--gray-700); }

.advisor-name {
  font-family: var(--mono);
  font-size: 13px;
}

.advisor-org {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--gray-400);
}

.advisor-focus {
  font-size: 12px;
  color: var(--gray-400);
}

/* ── CONTACT ── */
#contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-block-title {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 20px;
}

.contact-field {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}

.contact-field label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 6px;
}

.contact-field input,
.contact-field textarea {
  background: transparent;
  border: 1px solid var(--gray-700);
  color: var(--white);
  font-family: var(--mono);
  font-size: 12px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.2s;
  resize: none;
}

.contact-field input:focus,
.contact-field textarea:focus {
  border-color: var(--gray-200);
}

.contact-field textarea { height: 120px; }

.btn-submit {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: var(--white);
  color: var(--black);
  border: none;
  padding: 14px 32px;
  cursor: crosshair;
  transition: opacity 0.2s;
}

.btn-submit:hover { opacity: 0.8; }

.contact-info-block {
  border: 1px solid var(--gray-700);
  padding: 28px;
  font-family: var(--mono);
}

.contact-info-row {
  display: flex;
  flex-direction: column;
  margin-bottom: 24px;
}

.contact-info-row:last-child { margin-bottom: 0; }

.contact-info-row .lbl {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-200);
  margin-bottom: 5px;
}

.contact-info-row .val {
  font-size: 15px;
  color: var(--gray-200);
  line-height: 1.7;
}

/* ── FOOTER ── */
footer {
  padding: 32px 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-600);
}

.footer-copy {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--gray-600);
}

/* ── REVEAL ANIMATION ── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  #root { grid-template-columns: 1fr; }
  #sidebar { display: none; }
  #topbar { padding: 0 20px; }
  nav { gap: 16px; }
  .section { padding: 56px 24px; }
  #hero { padding: 48px 24px; }
  #product .product-layout { grid-template-columns: 1fr; }
  .product-visual { margin-right: 0; margin-bottom: 32px; }
  #contact .contact-grid { grid-template-columns: 1fr; }
  .advisor-row { grid-template-columns: 1fr 1fr; }
  .advisor-focus { display: none; }
  footer { padding: 24px; flex-direction: column; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-scanline, .status-dot { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
}