/* ═══════════════════════════════════════════════
   SLATE & SILICON — Global Design System
   v1.0 // All systems operational.
═══════════════════════════════════════════════ */

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

/* ── TOKENS ── */
:root {
  --bunker:      #0D0D0D;
  --slate:       #4A4E52;
  --white:       #E0E0E0;
  --cyan:        #B0D4DE;
  --cyan-dim:    rgba(176,212,222,0.10);
  --cyan-border: rgba(176,212,222,0.22);
  --grid:        rgba(176,212,222,0.055);
  --surface:     #131313;
  --surface2:    #1A1A1A;
  --muted:       #7A7F83;

  --mono:    'Space Mono', monospace;
  --display: 'Barlow Condensed', sans-serif;
  --body:    'Barlow', sans-serif;
}

/* ── BASE ── */
html { scroll-behavior: smooth; }

body {
  background: var(--bunker);
  color: var(--white);
  font-family: var(--body);
  font-weight: 300;
  line-height: 1.65;
  overflow-x: hidden;
}

/* Grid background — always on */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
  z-index: 0;
}

/* Every content element sits above the grid */
.z { position: relative; z-index: 1; }

/* ── TYPOGRAPHY UTILS ── */
.mono  { font-family: var(--mono); }
.cyan  { color: var(--cyan); }
.muted { color: var(--muted); }

h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  text-transform: uppercase;
  line-height: 1.03;
  letter-spacing: 0.02em;
  margin-bottom: 1.25rem;
}

.body-text {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 55ch;
  line-height: 1.8;
}

/* ── TAG (eyebrow label) ── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.25rem;
}
.tag::before {
  content: '';
  display: block;
  width: 28px;
  height: 1px;
  background: var(--cyan);
}

/* ── RULE ── */
.rule { border: none; border-top: 1px solid var(--cyan-border); margin: 0; }

/* ── BUTTONS ── */
.btn {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.9rem 1.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: all 0.2s;
}
.btn-fill {
  background: var(--cyan);
  color: var(--bunker);
  font-weight: 700;
}
.btn-fill:hover { opacity: 0.85; gap: 1rem; }

.btn-line {
  color: var(--muted);
  border-bottom: 1px solid var(--slate);
  padding: 0 0 2px;
}
.btn-line:hover { color: var(--white); border-color: var(--white); }

/* ── EMAIL FORM ── */
.form { display: flex; max-width: 400px; }

.form input {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--cyan-border);
  border-right: none;
  color: var(--white);
  font-family: var(--mono);
  font-size: 0.65rem;
  padding: 0.85rem 0.9rem;
  outline: none;
  letter-spacing: 0.04em;
  transition: border-color 0.2s;
}
.form input::placeholder { color: var(--slate); }
.form input:focus { border-color: rgba(176,212,222,0.5); }

.form button {
  background: var(--cyan);
  color: var(--bunker);
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.85rem 1.1rem;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.2s;
}
.form button:hover { opacity: 0.85; }

.form-note {
  font-family: var(--mono);
  font-size: 0.52rem;
  color: var(--slate);
  letter-spacing: 0.07em;
  margin-top: 0.85rem;
  line-height: 1.6;
}

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13,13,13,0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--cyan-border);
  padding: 1.1rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  text-decoration: none;
}
.logo em { color: var(--white); font-style: normal; }

/* Nav links (for multi-page nav) */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--cyan); }

.nav-cta {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--cyan);
  color: var(--bunker);
  padding: 0.5rem 1.1rem;
  text-decoration: none;
  font-weight: 700;
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.82; }

/* Mobile hamburger (JS-toggled) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 1px;
  background: var(--cyan);
  transition: all 0.25s;
}

/* ── TICKER ── */
.ticker {
  border-top: 1px solid var(--cyan-border);
  border-bottom: 1px solid var(--cyan-border);
  background: var(--surface);
  padding: 1rem 0;
  overflow: hidden;
}

.ticker-track {
  display: flex;
  gap: 3.5rem;
  animation: ticker 28s linear infinite;
  white-space: nowrap;
}

.ticker-item {
  font-family: var(--display);
  font-weight: 300;
  font-size: 0.82rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--slate);
  flex-shrink: 0;
}
.ticker-item b { color: var(--cyan); font-weight: 300; }

@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── SECTIONS ── */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem 2.5rem;
}

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--cyan-border);
  border-bottom: 1px solid var(--cyan-border);
}
.section-alt .section { padding: 6rem 2.5rem; }

/* ── TWO-COL ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

/* ── CARDS (experiment / feature style) ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--cyan-border);
  border: 1px solid var(--cyan-border);
  margin-top: 2.5rem;
}

.card {
  background: var(--bunker);
  padding: 1.75rem;
  transition: background 0.2s;
}
.card:hover { background: var(--surface); }

.card-code {
  font-family: var(--mono);
  font-size: 0.52rem;
  color: var(--cyan);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.card h3 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.6rem;
}

.card p {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.65;
}

/* ── STATUS DOT ── */
.status {
  font-family: var(--mono);
  font-size: 0.52rem;
  color: var(--cyan);
  letter-spacing: 0.09em;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.1rem;
}

.dot {
  width: 5px; height: 5px;
  background: var(--cyan);
  border-radius: 50%;
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.25; }
}

/* ── TAG CHIPS ── */
.chip-row { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1.1rem; }

.chip {
  font-family: var(--mono);
  font-size: 0.5rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid var(--cyan-border);
  padding: 3px 7px;
}

/* ── INCLUDE LIST ── */
.include-list { list-style: none; margin: 1.5rem 0 2rem; }

.include-list li {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(176,212,222,0.06);
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.include-list li::before { content: '→'; color: var(--cyan); }

/* ── HEAT LIST ── */
.heat-list { list-style: none; margin-top: 2rem; }

.heat-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(176,212,222,0.07);
  font-size: 0.875rem;
  color: var(--muted);
}
.heat-list li::before {
  content: attr(data-code);
  font-family: var(--mono);
  font-size: 0.5rem;
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid var(--cyan-border);
  padding: 3px 6px;
  flex-shrink: 0;
  margin-top: 1px;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* ── PAGE HERO (inner pages, not homepage) ── */
.page-hero {
  padding: 5rem 2.5rem 3rem;
  max-width: 1100px;
  margin: 0 auto;
  border-bottom: 1px solid var(--cyan-border);
}

.page-hero h1 {
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.95;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
  animation: up 0.6s ease both 0.1s;
}

.page-hero p {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 52ch;
  line-height: 1.75;
  animation: up 0.6s ease both 0.25s;
}

@keyframes up {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── REVEAL (scroll animation) ── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.on { opacity: 1; transform: none; }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--cyan-border);
  padding: 1.75rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  color: var(--slate);
  text-transform: uppercase;
  text-decoration: none;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  flex-wrap: wrap;
}
.footer-links a {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--slate);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--cyan); }

.footer-copy {
  font-family: var(--mono);
  font-size: 0.5rem;
  color: rgba(74,78,82,0.5);
  letter-spacing: 0.06em;
}

/* ── FOOTER CTA BLOCK ── */
.footer-cta {
  text-align: center;
  padding: 7rem 2.5rem;
  max-width: 1100px;
  margin: 0 auto;
}
.footer-cta h2 { font-size: clamp(2.5rem, 5.5vw, 5rem); max-width: 16ch; margin: 1rem auto 1.25rem; }
.footer-cta .body-text { margin: 0 auto 2.5rem; text-align: center; }
.footer-cta .form { margin: 0 auto; justify-content: center; }
.footer-cta .tag { justify-content: center; }
.footer-cta .tag::before { display: none; }

/* ── RESPONSIVE ── */
@media (max-width: 720px) {
  nav { padding: 1rem 1.25rem; }
  .nav-links { display: none; flex-direction: column; gap: 1rem; }
  .nav-links.open { display: flex; position: absolute; top: 100%; left: 0; right: 0; background: rgba(13,13,13,0.97); padding: 1.5rem; border-bottom: 1px solid var(--cyan-border); }
  .nav-toggle { display: flex; }
  .section { padding: 4rem 1.25rem; }
  .section-alt .section { padding: 4rem 1.25rem; }
  .two-col { grid-template-columns: 1fr; gap: 2.5rem; }
  .card-grid { grid-template-columns: 1fr; }
  .page-hero { padding: 3.5rem 1.25rem 2rem; }
  footer { padding: 1.5rem 1.25rem; flex-direction: column; align-items: flex-start; }
  .footer-cta { padding: 5rem 1.25rem; }
}