/*
 * NEXUS PLATFORMS — main stylesheet
 * Theming on top of Bootstrap 5 (grid/utilities only). All values come from css/tokens.css.
 */

/* ---------- base ---------- */

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--nx-bg-void);
  color: var(--nx-text-steel);
  font-family: var(--nx-font-body);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--nx-font-display);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--nx-text-titanium);
  letter-spacing: 0.06em;
}

a {
  color: var(--nx-accent);
  text-decoration: none;
  transition: color var(--nx-dur-fast) var(--nx-ease);
}

a:hover {
  color: var(--nx-accent-bright);
}

::selection {
  background: var(--nx-accent-deep);
  color: var(--nx-text-titanium);
}

.container {
  max-width: var(--nx-container-max);
}

/* blueprint grid laid over the whole page */
.nx-grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--nx-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--nx-grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, black 30%, transparent 80%);
}

main, footer, .nx-navbar {
  position: relative;
  z-index: 1;
}

/* mono utility labels — coolgray, not gunmetal: 4.5:1+ on void black (WCAG AA) */
.nx-mono {
  font-family: var(--nx-font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--nx-tracking-wide);
  text-transform: uppercase;
  color: var(--nx-sec-coolgray);
}

.nx-eyebrow {
  font-family: var(--nx-font-mono);
  font-size: 0.72rem;
  letter-spacing: var(--nx-tracking-ultra);
  text-transform: uppercase;
  color: var(--nx-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.nx-eyebrow::before {
  content: "";
  display: inline-block;
  width: 2.25rem;
  height: 1px;
  background: var(--nx-accent-deep);
}

.nx-section {
  padding-block: var(--nx-section-y);
  position: relative;
}

.nx-section-title {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  margin-bottom: 1rem;
}

/* section intro line — unlike .nx-hero__sub no max-width, so it stays on one line */
.nx-section-sub {
  color: var(--nx-sec-coolgray);
  font-size: 1.05rem;
}

/* ---------- boot overlay ---------- */

.nx-boot {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: var(--nx-bg-void);
  display: flex;
  align-items: center;
  justify-content: center;
  /* visibility flips only after the opacity fade completes, so the overlay never becomes click-through early */
  transition: opacity var(--nx-dur-base) var(--nx-ease), visibility 0ms linear var(--nx-dur-base);
}

.nx-boot.is-done {
  opacity: 0;
  visibility: hidden;
}

.nx-boot__log {
  font-family: var(--nx-font-mono);
  font-size: 0.8rem;
  color: var(--nx-sec-coolgray);
  letter-spacing: 0.1em;
  min-width: min(26rem, 80vw);
}

.nx-boot__log .ok {
  color: var(--nx-accent-bright);
}

/* ---------- navbar ---------- */

.nx-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding-block: 1.25rem;
  border-bottom: 1px solid transparent;
  transition:
    padding var(--nx-dur-base) var(--nx-ease),
    background-color var(--nx-dur-base) var(--nx-ease),
    border-color var(--nx-dur-base) var(--nx-ease);
}

.nx-navbar.is-condensed {
  padding-block: 0.6rem;
  background: var(--nx-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--nx-line);
}

.nx-navbar .navbar-brand {
  font-family: var(--nx-font-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.32em;
  color: var(--nx-text-titanium);
}

.nx-navbar .navbar-brand small {
  display: block;
  font-family: var(--nx-font-mono);
  font-size: 0.55rem;
  letter-spacing: var(--nx-tracking-ultra);
  color: var(--nx-accent);
  margin-top: 0.1rem;
}

.nx-navbar .nav-link {
  font-family: var(--nx-font-display);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: var(--nx-tracking-wide);
  text-transform: uppercase;
  color: var(--nx-text-steel);
  padding-inline: 1rem;
}

.nx-navbar .nav-link:hover,
.nx-navbar .nav-link:focus-visible {
  color: var(--nx-accent-bright);
}

.nx-navbar .navbar-toggler {
  border: 1px solid var(--nx-line-strong);
  border-radius: 0;
  color: var(--nx-text-titanium);
}

.nx-navbar .navbar-toggler:focus-visible {
  box-shadow: var(--nx-glow-accent);
}

@media (max-width: 991.98px) {
  .nx-navbar .navbar-collapse {
    background: var(--nx-glass-strong);
    border: 1px solid var(--nx-line);
    margin-top: 0.75rem;
    padding: 1rem;
  }
}

/* ---------- buttons ---------- */

.nx-btn {
  --bs-btn-border-radius: 0;
  font-family: var(--nx-font-display);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: var(--nx-tracking-wide);
  border-radius: 0;
  padding: 0.85rem 2.2rem;
  position: relative;
  transition: all var(--nx-dur-fast) var(--nx-ease);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

/* clip-path clips outset outlines/shadows — keep the focus ring inside the polygon */
.nx-btn:focus-visible {
  outline: 2px solid var(--nx-accent-bright);
  outline-offset: -6px;
}

.nx-btn-primary {
  background: var(--nx-accent-deep);
  border: 1px solid var(--nx-accent);
  color: var(--nx-text-titanium);
}

.nx-btn-primary:hover,
.nx-btn-primary:focus-visible {
  background: var(--nx-accent);
  border-color: var(--nx-accent-bright);
  color: var(--nx-text-titanium);
  box-shadow: var(--nx-glow-accent);
}

.nx-btn-ghost {
  background: transparent;
  border: 1px solid var(--nx-line-strong);
  color: var(--nx-text-steel);
}

.nx-btn-ghost:hover,
.nx-btn-ghost:focus-visible {
  border-color: var(--nx-accent);
  color: var(--nx-accent-bright);
  background: rgba(91, 121, 181, 0.08);
}

/* ---------- hero ---------- */

.nx-hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  position: relative;
  isolation: isolate;
  background:
    linear-gradient(180deg, rgba(10, 12, 16, 0.78) 0%, rgba(10, 12, 16, 0.88) 60%, var(--nx-bg-void) 100%),
    url("../assets/img/hero-tower.jpg?v=1781152384") center 30% / cover no-repeat,
    radial-gradient(ellipse 120% 70% at 50% -10%, #16202f 0%, var(--nx-bg-void) 65%);
}

/* scanlines */
.nx-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: repeating-linear-gradient(
    0deg,
    transparent 0 2px,
    rgba(199, 203, 210, var(--nx-scanline-opacity)) 2px 3px
  );
  pointer-events: none;
}

.nx-hero__designator {
  font-family: var(--nx-font-mono);
  font-size: 0.72rem;
  letter-spacing: var(--nx-tracking-ultra);
  color: var(--nx-sec-coolgray);
  margin-bottom: 2rem;
}

.nx-hero__designator .sep {
  color: var(--nx-accent);
  margin-inline: 0.6rem;
}

.nx-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  line-height: 1.04;
  letter-spacing: 0.04em;
  margin-bottom: 1.75rem;
  color: var(--nx-text-titanium);
  text-wrap: balance;
}

.nx-hero h1 .accent {
  color: var(--nx-accent-bright);
}

.nx-hero__sub {
  max-width: 38rem;
  color: var(--nx-sec-coolgray);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
}

.nx-hero__logo {
  display: block;
  width: min(560px, 100%);
  height: auto;
  margin-bottom: 2.25rem;
  filter: drop-shadow(0 0 32px rgba(106, 143, 214, 0.18));
}

.nx-hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--nx-font-mono);
  font-size: 0.65rem;
  letter-spacing: var(--nx-tracking-ultra);
  color: var(--nx-text-gunmetal);
  writing-mode: vertical-rl;
}

.nx-hero__scroll::after {
  content: "";
  display: block;
  width: 1px;
  height: 3rem;
  margin: 0.75rem auto 0;
  background: linear-gradient(180deg, var(--nx-accent), transparent);
  animation: nx-drop 2.2s var(--nx-ease) infinite;
}

@keyframes nx-drop {
  0%   { transform: scaleY(0); transform-origin: top; }
  60%  { transform: scaleY(1); transform-origin: top; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- ticker ---------- */

.nx-ticker {
  border-block: 1px solid var(--nx-line);
  background: var(--nx-bg-graphite);
  overflow: hidden;
  padding-block: 0.7rem;
}

.nx-ticker__track {
  display: flex;
  gap: 4rem;
  width: max-content;
  animation: nx-ticker 36s linear infinite;
}

.nx-ticker__track span {
  font-family: var(--nx-font-mono);
  font-size: 0.72rem;
  letter-spacing: var(--nx-tracking-wide);
  color: var(--nx-text-gunmetal);
  white-space: nowrap;
}

.nx-ticker__track span b {
  color: var(--nx-accent);
  font-weight: 400;
}

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

/* ---------- stats ---------- */

.nx-stat {
  border-left: 1px solid var(--nx-line);
  padding-left: 1.5rem;
}

.nx-stat__value {
  font-family: var(--nx-font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  color: var(--nx-text-titanium);
  line-height: 1;
}

.nx-stat__value .suffix {
  color: var(--nx-accent-bright);
}

.nx-stat__label {
  font-family: var(--nx-font-mono);
  font-size: 0.7rem;
  letter-spacing: var(--nx-tracking-wide);
  text-transform: uppercase;
  color: var(--nx-sec-coolgray);
  margin-top: 0.6rem;
}

/* ---------- division cards ---------- */

.nx-card {
  background: var(--nx-bg-graphite);
  border: 1px solid var(--nx-line);
  height: 100%;
  position: relative;
  transition:
    border-color var(--nx-dur-base) var(--nx-ease),
    transform var(--nx-dur-base) var(--nx-ease),
    box-shadow var(--nx-dur-base) var(--nx-ease);
}

.nx-card:hover {
  border-color: var(--nx-accent-deep);
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.5), var(--nx-glow-accent);
}

.nx-card__media {
  aspect-ratio: 4 / 3;
  background-color: var(--nx-bg-charcoal);
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--nx-line);
  position: relative;
  filter: saturate(0.7) contrast(1.05);
}

.nx-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10, 12, 16, 0.65));
}

.nx-card__index {
  position: absolute;
  top: 0.9rem;
  left: 1.1rem;
  z-index: 1;
  font-family: var(--nx-font-mono);
  font-size: 0.7rem;
  letter-spacing: var(--nx-tracking-wide);
  color: var(--nx-accent-bright);
}

.nx-card__body {
  padding: 1.6rem 1.6rem 1.8rem;
}

.nx-card__body h3 {
  font-size: 1.15rem;
  letter-spacing: var(--nx-tracking-wide);
  margin-bottom: 0.75rem;
}

.nx-card__body p {
  font-size: 0.92rem;
  color: var(--nx-sec-coolgray);
  margin-bottom: 0;
}

.nx-card__link {
  display: inline-block;
  margin-top: 1.1rem;
  font-family: var(--nx-font-mono);
  font-size: 0.72rem;
  letter-spacing: var(--nx-tracking-wide);
  color: var(--nx-accent);
}

/* fallback art per division until real images exist —
   gradient hexes intentionally off-token: temporary placeholder art with
   per-division variation, removed once assets/img/division-*.jpg ship */
.nx-media--architecture { background-image: url("../assets/img/division-architecture.jpg?v=1781152384"), linear-gradient(135deg, #141a23, #0c1018); }
.nx-media--platforms    { background-image: url("../assets/img/division-platforms.jpg?v=1781152384"),    linear-gradient(225deg, #121a28, #0b0e14); }
.nx-media--intelligence { background-image: url("../assets/img/division-intelligence.jpg?v=1781152384"), linear-gradient(160deg, #101722, #0a0d12); }
.nx-media--governance   { background-image: url("../assets/img/division-governance.jpg?v=1781152384"),   linear-gradient(200deg, #131b27, #0b0f15); }

/* ---------- platform split ---------- */

.nx-platform__media {
  min-height: 420px;
  border: 1px solid var(--nx-line);
  background:
    linear-gradient(180deg, rgba(10, 12, 16, 0.15), rgba(10, 12, 16, 0.55)),
    url("../assets/img/platform-blueprint.jpg?v=1781152384") center / cover no-repeat,
    radial-gradient(ellipse at 30% 40%, #18222f 0%, #0c0f15 70%);
  position: relative;
}

.nx-platform__media::before {
  content: "NX-//-CORE.MAP.01";
  position: absolute;
  top: 1rem;
  right: 1.1rem;
  font-family: var(--nx-font-mono);
  font-size: 0.65rem;
  letter-spacing: var(--nx-tracking-wide);
  color: var(--nx-sec-coolgray);
}

.nx-checklist {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
}

.nx-checklist li {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding-block: 0.85rem;
  border-bottom: 1px solid var(--nx-line);
  color: var(--nx-text-steel);
  font-size: 0.95rem;
}

.nx-checklist li::before {
  content: "▸";
  color: var(--nx-accent-bright);
  font-size: 0.8rem;
  flex-shrink: 0;
}

.nx-checklist li code {
  font-family: var(--nx-font-mono);
  font-size: 0.75rem;
  color: var(--nx-accent);
  background: none;
}

/* ---------- manifesto ---------- */

.nx-manifesto {
  position: relative;
  isolation: isolate;
  text-align: center;
  padding-block: clamp(7rem, 14vw, 12rem);
  background:
    linear-gradient(180deg, var(--nx-bg-void) 0%, rgba(10, 12, 16, 0.72) 25%, rgba(10, 12, 16, 0.72) 75%, var(--nx-bg-void) 100%),
    url("../assets/img/manifesto-bg.jpg?v=1781152384") center / cover no-repeat,
    radial-gradient(ellipse 100% 100% at 50% 50%, #131a26 0%, var(--nx-bg-void) 75%);
}

.nx-manifesto blockquote {
  font-family: var(--nx-font-display);
  font-weight: 600;
  font-size: clamp(1.6rem, 4vw, 3rem);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1.25;
  color: var(--nx-text-titanium);
  max-width: 56rem;
  margin: 0 auto;
  text-wrap: balance;
}

.nx-manifesto blockquote .accent {
  color: var(--nx-accent-bright);
}

.nx-manifesto figcaption {
  margin-top: 2rem;
}

/* ---------- intel ---------- */

.nx-intel-card {
  background: var(--nx-bg-graphite);
  border: 1px solid var(--nx-line);
  height: 100%;
  transition: border-color var(--nx-dur-base) var(--nx-ease);
}

.nx-intel-card:hover {
  border-color: var(--nx-accent-deep);
}

.nx-intel-card__media {
  aspect-ratio: 16 / 9;
  background-color: var(--nx-bg-charcoal);
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--nx-line);
  filter: saturate(0.65);
}

.nx-media--intel1 { background-image: url("../assets/img/intel-01.jpg?v=1781152384"), linear-gradient(140deg, #131927, #0b0e13); }
.nx-media--intel2 { background-image: url("../assets/img/intel-02.jpg?v=1781152384"), linear-gradient(220deg, #111826, #0a0d12); }
.nx-media--intel3 { background-image: url("../assets/img/intel-03.jpg?v=1781152384"), linear-gradient(180deg, #121a24, #0b0f16); }

.nx-intel-card__body {
  padding: 1.4rem 1.5rem 1.6rem;
}

.nx-intel-card__body time {
  font-family: var(--nx-font-mono);
  font-size: 0.68rem;
  letter-spacing: var(--nx-tracking-wide);
  color: var(--nx-sec-coolgray);
}

.nx-intel-card__body h3 {
  font-size: 1.05rem;
  margin-block: 0.6rem 0.7rem;
}

.nx-intel-card__body p {
  font-size: 0.9rem;
  color: var(--nx-sec-coolgray);
  margin: 0;
}

/* ---------- contact ---------- */

.nx-contact {
  background: var(--nx-bg-graphite);
  border-block: 1px solid var(--nx-line);
}

.nx-form .form-label {
  font-family: var(--nx-font-mono);
  font-size: 0.7rem;
  letter-spacing: var(--nx-tracking-wide);
  text-transform: uppercase;
  color: var(--nx-sec-coolgray);
}

.nx-form .form-control {
  background: var(--nx-bg-void);
  border: 1px solid var(--nx-line);
  border-radius: 0;
  color: var(--nx-text-titanium);
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
}

.nx-form .form-control::placeholder {
  color: var(--nx-sec-slate-blue);
}

.nx-form .form-control:focus {
  background: var(--nx-bg-void);
  border-color: var(--nx-accent);
  color: var(--nx-text-titanium);
  box-shadow: var(--nx-glow-accent);
}

.nx-form .form-control.is-invalid {
  border-color: var(--nx-error);
  box-shadow: none;
}

.nx-form__status {
  font-family: var(--nx-font-mono);
  font-size: 0.78rem;
  letter-spacing: var(--nx-tracking-wide);
  color: var(--nx-accent-bright);
  min-height: 1.4rem;
}

/* ---------- footer ---------- */

.nx-footer {
  padding-block: 4.5rem 2rem;
  border-top: 1px solid var(--nx-line);
  background: var(--nx-bg-void);
}

.nx-footer h3 {
  font-size: 0.82rem;
  letter-spacing: var(--nx-tracking-wide);
  color: var(--nx-text-titanium);
  margin-bottom: 1.2rem;
}

.nx-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nx-footer ul li {
  margin-bottom: 0.55rem;
}

.nx-footer ul a {
  color: var(--nx-sec-coolgray);
  font-size: 0.88rem;
}

.nx-footer ul a:hover {
  color: var(--nx-accent-bright);
}

.nx-footer__legal {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--nx-line);
  font-family: var(--nx-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--nx-sec-coolgray);
}

.nx-footer__logo {
  width: min(280px, 100%);
  height: auto;
}

.nx-footer__address {
  font-style: normal;
  line-height: 1.9;
}

/* ---------- reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--nx-dur-slow) var(--nx-ease),
    transform var(--nx-dur-slow) var(--nx-ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* stagger helper for card grids */
.reveal[data-delay="1"] { transition-delay: 120ms; }
.reveal[data-delay="2"] { transition-delay: 240ms; }
.reveal[data-delay="3"] { transition-delay: 360ms; }

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .nx-ticker__track,
  .nx-hero__scroll::after {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}