/* =========================================================
   NorthVale Orbital Technologies — styles.css
   Theme: deep orbital blue / ice cyan / cold whites
   Type: Chakra Petch (display) + IBM Plex Sans (body) + IBM Plex Mono (meta)
   ========================================================= */

:root {
  --nv-bg:        #05080d;       /* near-black space */
  --nv-bg-2:      #0a121d;       /* panel */
  --nv-bg-3:      #0f1a28;       /* card */
  --nv-line:      rgba(180, 210, 240, 0.10);
  --nv-line-2:    rgba(180, 210, 240, 0.18);
  --nv-text:      #e6eef7;       /* cold white */
  --nv-text-dim:  #8fa2b8;       /* steel */
  --nv-text-mute: #5b6c80;
  --nv-accent:    #5fd8ff;       /* ice cyan */
  --nv-accent-2:  #2a7fff;       /* deep electric */
  --nv-warn:      #ff6b6b;

  --nv-ff-display: 'Chakra Petch', 'Eurostile', 'Bahnschrift', sans-serif;
  --nv-ff-body:    'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --nv-ff-mono:    'IBM Plex Mono', ui-monospace, 'JetBrains Mono', monospace;

  --nv-maxw: 1240px;
  --nv-pad-x: clamp(20px, 4vw, 56px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--nv-ff-body);
  background: var(--nv-bg);
  color: var(--nv-text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--nv-accent); text-decoration: none; transition: color .2s ease; }
a:hover { color: #fff; }

::selection { background: var(--nv-accent); color: #02060c; }

/* ============ NAVBAR ============ */
.nv-nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(5, 8, 13, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--nv-line);
}
.nv-nav__inner {
  max-width: var(--nv-maxw);
  margin: 0 auto;
  padding: 14px var(--nv-pad-x);
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.nv-logo {
  display: flex; align-items: center; gap: 12px;
  color: var(--nv-text);
}
.nv-logo__mark {
  width: 32px; height: 32px;
  color: var(--nv-accent);
  flex-shrink: 0;
}
.nv-logo__text {
  display: flex; flex-direction: column;
  line-height: 1;
}
.nv-logo__name {
  font-family: var(--nv-ff-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.18em;
}
.nv-logo__sub {
  font-family: var(--nv-ff-mono);
  font-size: 9px;
  letter-spacing: 0.28em;
  color: var(--nv-text-mute);
  margin-top: 4px;
}

.nv-nav__links {
  display: flex; gap: 28px; align-items: center;
}
.nv-nav__links a {
  font-family: var(--nv-ff-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--nv-text-dim);
  position: relative; padding: 4px 0;
}
.nv-nav__links a:hover { color: var(--nv-text); }
.nv-nav__links a.is-active { color: var(--nv-text); }
.nv-nav__links a.is-active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1px; background: var(--nv-accent);
}

.nv-nav__toggle {
  display: none;
  background: transparent; border: 1px solid var(--nv-line-2);
  width: 38px; height: 38px;
  cursor: pointer; padding: 0;
  flex-direction: column; align-items: center; justify-content: center; gap: 4px;
}
.nv-nav__toggle span {
  display: block; width: 16px; height: 1px; background: var(--nv-text);
}

/* ============ HERO ============ */
.nv-hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px var(--nv-pad-x) 80px;
  overflow: hidden;
  border-bottom: 1px solid var(--nv-line);
}
.nv-hero__bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  filter: grayscale(30%) contrast(110%) brightness(55%);
  z-index: 0;
}
.nv-hero__scrim {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(42,127,255,0.18), transparent 60%),
    linear-gradient(180deg, rgba(5,8,13,0.5) 0%, rgba(5,8,13,0.85) 100%);
  z-index: 1;
}
.nv-hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(180,210,240,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(180,210,240,0.05) 1px, transparent 1px);
  background-size: 80px 80px;
  z-index: 1;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.nv-hero__content {
  position: relative; z-index: 2;
  max-width: var(--nv-maxw); margin: 0 auto;
  width: 100%;
}
.nv-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--nv-ff-mono); font-size: 11px;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--nv-accent);
  padding: 8px 14px;
  border: 1px solid rgba(95, 216, 255, 0.3);
  margin-bottom: 32px;
}
.nv-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--nv-accent);
  box-shadow: 0 0 12px var(--nv-accent);
  animation: nv-blink 2s ease-in-out infinite;
}
@keyframes nv-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.nv-hero__title {
  font-family: var(--nv-ff-display);
  font-weight: 600;
  font-size: clamp(40px, 7vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 0 0 32px;
  max-width: 14ch;
}
.nv-accent { color: var(--nv-accent); }

.nv-hero__lede {
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.6;
  color: var(--nv-text-dim);
  max-width: 56ch;
  margin: 0 0 56px;
}

.nv-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--nv-line);
  padding-top: 28px;
  max-width: 720px;
}
.nv-meta {
  display: flex; flex-direction: column; gap: 6px;
  padding-right: 24px;
}
.nv-meta + .nv-meta {
  border-left: 1px solid var(--nv-line);
  padding-left: 24px;
}
.nv-meta__k {
  font-family: var(--nv-ff-mono); font-size: 10px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--nv-text-mute);
}
.nv-meta__v {
  font-family: var(--nv-ff-display);
  font-size: 16px; font-weight: 500;
  color: var(--nv-text);
  display: flex; align-items: center; gap: 8px;
}
.nv-pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--nv-accent);
  box-shadow: 0 0 0 0 var(--nv-accent);
  animation: nv-pulse 2s infinite;
}
@keyframes nv-pulse {
  0% { box-shadow: 0 0 0 0 rgba(95, 216, 255, 0.6); }
  70% { box-shadow: 0 0 0 8px rgba(95, 216, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(95, 216, 255, 0); }
}

.nv-hero__scroll {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: var(--nv-text-mute);
  font-family: var(--nv-ff-mono); font-size: 10px; letter-spacing: 0.3em;
}
.nv-hero__scroll svg { width: 12px; height: 24px; animation: nv-bounce 2.4s ease-in-out infinite; }
@keyframes nv-bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(6px); } }

/* ============ SECTIONS ============ */
.nv-section {
  padding: clamp(80px, 12vw, 140px) var(--nv-pad-x);
  max-width: var(--nv-maxw);
  margin: 0 auto;
}
.nv-section--dark {
  max-width: none;
  background: var(--nv-bg-2);
  border-top: 1px solid var(--nv-line);
  border-bottom: 1px solid var(--nv-line);
}
.nv-section--dark > * {
  max-width: var(--nv-maxw); margin-left: auto; margin-right: auto;
}
.nv-section__head {
  margin-bottom: 64px;
  max-width: 880px;
}
.nv-sec-num {
  display: inline-block;
  font-family: var(--nv-ff-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--nv-accent);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(95, 216, 255, 0.25);
}
.nv-h2 {
  font-family: var(--nv-ff-display);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
}
.nv-sub {
  font-size: 17px;
  color: var(--nv-text-dim);
  max-width: 60ch;
  margin: 0;
}

/* Two-column */
.nv-twocol {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
.nv-twocol--reverse .nv-figure { order: -1; }

.nv-prose p { color: var(--nv-text-dim); margin: 0 0 18px; }
.nv-prose strong { color: var(--nv-text); font-weight: 500; }
.nv-prose em { color: var(--nv-accent); font-style: normal; }
.nv-lead {
  font-size: 18px !important;
  color: var(--nv-text) !important;
  line-height: 1.55 !important;
}

.nv-bullets {
  list-style: none; padding: 0; margin: 32px 0 0;
}
.nv-bullets li {
  display: flex; gap: 18px; align-items: baseline;
  padding: 16px 0;
  border-top: 1px solid var(--nv-line);
  color: var(--nv-text);
}
.nv-bullets li:last-child { border-bottom: 1px solid var(--nv-line); }
.nv-bullets span {
  font-family: var(--nv-ff-mono);
  color: var(--nv-accent);
  font-size: 12px;
  letter-spacing: 0.1em;
  flex-shrink: 0;
}

/* Figures */
.nv-figure {
  margin: 0;
  position: relative;
}
.nv-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--nv-line-2);
  filter: contrast(105%) saturate(85%);
}
.nv-figure--wide img {
  aspect-ratio: 21 / 9;
}
.nv-figure figcaption {
  font-family: var(--nv-ff-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--nv-text-mute);
  margin-top: 14px;
  padding-left: 14px;
  border-left: 1px solid var(--nv-accent);
}
.nv-figure--wide {
  margin-top: 64px;
}

/* Partnership stack */
.nv-stack {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: stretch;
}
.nv-card {
  background: var(--nv-bg-3);
  border: 1px solid var(--nv-line-2);
  padding: 36px;
  position: relative;
  transition: border-color .3s ease, transform .3s ease;
}
.nv-card:hover {
  border-color: var(--nv-accent);
  transform: translateY(-2px);
}
.nv-card::before {
  content: '';
  position: absolute; top: -1px; left: -1px;
  width: 24px; height: 24px;
  border-top: 1px solid var(--nv-accent);
  border-left: 1px solid var(--nv-accent);
}
.nv-card::after {
  content: '';
  position: absolute; bottom: -1px; right: -1px;
  width: 24px; height: 24px;
  border-bottom: 1px solid var(--nv-accent);
  border-right: 1px solid var(--nv-accent);
}
.nv-card__head { margin-bottom: 24px; }
.nv-card__num {
  font-family: var(--nv-ff-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--nv-accent);
  display: block; margin-bottom: 12px;
}
.nv-card h3 {
  font-family: var(--nv-ff-display);
  font-size: 26px;
  font-weight: 500;
  margin: 0 0 6px;
  letter-spacing: 0;
}
.nv-card__role {
  font-family: var(--nv-ff-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--nv-text-mute);
}
.nv-card__list {
  list-style: none; padding: 0; margin: 0;
}
.nv-card__list li {
  padding: 14px 0;
  border-top: 1px solid var(--nv-line);
  color: var(--nv-text-dim);
  font-size: 15px;
  position: relative;
  padding-left: 22px;
}
.nv-card__list li::before {
  content: '→';
  position: absolute; left: 0; top: 14px;
  color: var(--nv-accent);
  font-family: var(--nv-ff-mono);
}
.nv-card__list li:last-child { border-bottom: 1px solid var(--nv-line); }

.nv-link {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 10px;
  color: var(--nv-accent);
  font-family: var(--nv-ff-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
}
.nv-link svg { width: 100px; height: 40px; }

/* Specs */
.nv-specs {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.nv-spec {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-top: 1px solid var(--nv-line);
  align-items: baseline;
}
.nv-spec:last-child { border-bottom: 1px solid var(--nv-line); }
.nv-spec__k {
  font-family: var(--nv-ff-mono);
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--nv-accent);
}
.nv-spec__v {
  color: var(--nv-text-dim);
  font-size: 15px;
}

/* Mission strip */
.nv-strip {
  position: relative;
  padding: clamp(80px, 12vw, 140px) var(--nv-pad-x);
  overflow: hidden;
  border-top: 1px solid var(--nv-line);
  border-bottom: 1px solid var(--nv-line);
}
.nv-strip__bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  filter: grayscale(70%) brightness(35%);
}
.nv-strip__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(5,8,13,0.92) 0%, rgba(5,8,13,0.55) 100%);
}
.nv-strip__content {
  position: relative; z-index: 1;
  max-width: 880px;
  margin: 0 auto;
}
.nv-strip__quote {
  font-family: var(--nv-ff-display);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.25;
  color: var(--nv-text);
  margin: 0 0 24px;
  letter-spacing: -0.005em;
}
.nv-strip__attr {
  font-family: var(--nv-ff-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--nv-accent);
  margin: 0;
}

/* Close section */
.nv-section--close {
  text-align: left;
}
.nv-close__p {
  font-size: 18px;
  color: var(--nv-text-dim);
  max-width: 70ch;
  margin: 0 0 32px;
}

/* ============ FOOTER ============ */
.nv-foot {
  background: #02050a;
  border-top: 1px solid var(--nv-line);
  padding: 56px var(--nv-pad-x) 24px;
}
.nv-foot__inner {
  max-width: var(--nv-maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.nv-foot__brand {
  display: flex; gap: 16px; align-items: flex-start;
  color: var(--nv-text);
}
.nv-foot__brand .nv-logo__mark { color: var(--nv-accent); width: 36px; height: 36px; }
.nv-foot__name {
  font-family: var(--nv-ff-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.18em;
}
.nv-foot__legal {
  font-family: var(--nv-ff-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--nv-text-mute);
  margin-top: 6px;
}
.nv-foot__cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.nv-foot__col {
  display: flex; flex-direction: column; gap: 10px;
}
.nv-foot__h {
  font-family: var(--nv-ff-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--nv-text-mute);
  margin-bottom: 6px;
}
.nv-foot__col a {
  color: var(--nv-text-dim);
  font-size: 14px;
}
.nv-foot__col a:hover { color: var(--nv-accent); }

.nv-foot__bar {
  max-width: var(--nv-maxw);
  margin: 40px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--nv-line);
  display: flex; justify-content: space-between;
  font-family: var(--nv-ff-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--nv-text-mute);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 960px) {
  .nv-twocol { grid-template-columns: 1fr; }
  .nv-twocol--reverse .nv-figure { order: 0; }
  .nv-stack { grid-template-columns: 1fr; gap: 24px; }
  .nv-link { transform: rotate(90deg); padding: 12px 0; }
  .nv-link svg { width: 60px; }
  .nv-hero__meta { grid-template-columns: 1fr; gap: 16px; }
  .nv-meta + .nv-meta { border-left: none; padding-left: 0; border-top: 1px solid var(--nv-line); padding-top: 16px; }
  .nv-foot__inner { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  .nv-nav__toggle { display: flex; }
  .nv-nav__links {
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(5, 8, 13, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0;
    border-bottom: 1px solid var(--nv-line);
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .nv-nav__links.is-open {
    max-height: 400px;
  }
  .nv-nav__links a {
    width: 100%;
    padding: 18px var(--nv-pad-x);
    border-top: 1px solid var(--nv-line);
  }
  .nv-logo__sub { display: none; }
  .nv-foot__cols { grid-template-columns: 1fr; }
  .nv-foot__bar { flex-direction: column; gap: 10px; text-align: center; }
  .nv-spec { grid-template-columns: 1fr; gap: 6px; }
  .nv-hero { min-height: auto; padding-top: 140px; padding-bottom: 100px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}