/* ===== TOKENS ===== */
:root {
  --color-bg: #050506;
  --color-surface: #0D0D10;
  --color-text: #FFFFFF;
  --color-text-secondary: rgba(255, 255, 255, 0.6);
  --color-text-tertiary: rgba(255, 255, 255, 0.4);
  --color-border: rgba(255, 255, 255, 0.1);
  --color-accent: #217BFF;
  --color-accent-glow-start: #0A3B8F;
  --color-accent-glow-end: #29A1FF;

  --font-display: 'Anton', 'Arial Narrow', sans-serif;
  --font-body: 'Montserrat', 'Segoe UI', sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  --space-8: 128px;

  --container-width: 1280px;
  --border-radius: 0px;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; overflow-x: hidden; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul, ol { list-style: none; }
h1, h2, h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-weight: normal;
}
input { font: inherit; }

/* ===== LAYOUT ===== */
.container {
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
}
section { padding-block: var(--space-7); border-bottom: 1px solid var(--color-border); }

/* ===== UTILITIES ===== */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-bg);
  padding: var(--space-2);
  z-index: 100;
}
.skip-link:focus { left: var(--space-2); top: var(--space-2); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px 2px var(--color-accent-glow-end);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ===== HEADER & NAV ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 5, 6, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  padding-block: 0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
}
.logo-lockup { display: flex; align-items: center; position: relative; }
.logo-lockup-img {
  /* XP icon-only mark (Graphics/Master Logo/Misc Logos/xp-icon-only.png). */
  display: block;
  height: 32px;
  width: auto;
  transition: opacity 0.25s ease;
}
.logo-lockup-img--hover {
  /* Blue-accent variant (Misc Logos/xp-department-blue-accent-XP-only.png),
     cross-faded in on hover/focus over the base white mark. */
  position: absolute;
  top: 0;
  left: 0;
  height: 32px;
  opacity: 0;
}
.logo-lockup:hover .logo-lockup-img:not(.logo-lockup-img--hover),
.logo-lockup:focus-visible .logo-lockup-img:not(.logo-lockup-img--hover) {
  opacity: 0;
}
.logo-lockup:hover .logo-lockup-img--hover,
.logo-lockup:focus-visible .logo-lockup-img--hover {
  opacity: 1;
}

.site-nav ul { display: flex; gap: var(--space-4); }
.site-nav a {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  position: relative;
  padding-block: var(--space-1);
}
.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.25s ease;
}
.site-nav a:hover::after,
.site-nav a:focus-visible::after { width: 100%; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: var(--space-1); position: relative; }
.nav-toggle::after {
  content: '';
  position: absolute;
  inset: -6px;
}
.nav-toggle-bar { width: 22px; height: 2px; background: var(--color-text); }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    height: calc(100vh - 100%);
    overflow-y: auto;
    background: var(--color-bg);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.3s ease, visibility 0s linear 0.3s;
  }
  .site-nav.is-open {
    transform: translateX(0);
    visibility: visible;
    transition-delay: 0s;
  }
  .site-nav ul { flex-direction: column; gap: var(--space-3); padding: var(--space-5) var(--space-3); }
  .site-nav a { padding-block: var(--space-2); }
}

/* ===== HERO ===== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background-image:
    radial-gradient(circle at 50% 30%, rgba(33, 123, 255, 0.15), transparent 60%),
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(var(--color-bg) 0%, transparent 15%, transparent 85%, var(--color-bg) 100%);
  pointer-events: none;
}
.hero-inner { position: relative; text-align: center; }
.hero-title { margin-block: var(--space-3) var(--space-2); }
.hero-lockup-img {
  /* Real cutout from the brand's own transparent logo file
     (Graphics/Master Logo/xp-department-primary-logo-transparent.png),
     upscaled and re-exported at high resolution so it stays crisp on
     retina/HiDPI displays. The accent line + dot are cropped out here and
     rendered live below as .hero-divider so they can animate. */
  display: block;
  width: min(520px, 85vw);
  height: auto;
  margin-inline: auto;
}
.hero-divider {
  position: relative;
  width: min(468px, 76.5vw);
  height: 2px;
  margin: 0 auto var(--space-3);
}
.hero-divider-line {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg,
    transparent,
    var(--color-accent-glow-start) 20%,
    var(--color-accent-glow-end) 50%,
    var(--color-accent-glow-start) 80%,
    transparent);
  animation: accent-pulse 2.4s ease-in-out infinite;
}
.hero-divider-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px 2px var(--color-accent-glow-end);
  animation: accent-pulse 2.4s ease-in-out infinite;
}
.hero-tagline {
  font-size: 0.9rem;
  letter-spacing: 0.32em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}
.hero-tagline .dot {
  display: inline-block;
  width: 0.5em;
  height: 0.5em;
  border-radius: 50%;
  background: var(--color-accent);
  color: transparent;
  margin-inline: var(--space-2);
  vertical-align: middle;
}
.hero-subtext {
  max-width: 560px;
  margin-inline: auto;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}
.hero-actions { display: flex; gap: var(--space-2); justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--color-accent);
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.btn-primary { background: var(--color-accent); color: var(--color-bg); border-color: var(--color-accent); }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--color-bg); color: var(--color-accent); border-color: var(--color-accent); }
.btn-secondary { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover, .btn-secondary:focus-visible { border-color: var(--color-accent); color: var(--color-accent); }

/* ===== PILLARS ===== */
.pillars-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.pillar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-4);
  position: relative;
}
.pillar::before, .pillar::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid var(--color-accent);
}
.pillar::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.pillar::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }
.pillar-icon { width: 32px; height: 32px; color: var(--color-accent); margin-bottom: var(--space-3); }
.pillar h3 { font-size: 1.1rem; margin-bottom: var(--space-2); }
.pillar p { color: var(--color-text-secondary); font-size: 0.9rem; }

@media (max-width: 768px) {
  .pillars-grid { grid-template-columns: 1fr; }
}

/* ===== MISSIONS ===== */
.missions-inner { max-width: 720px; }
.status-badge {
  display: inline-block;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: var(--space-1) var(--space-2);
  margin-block: var(--space-2);
}
.missions-body, .missions-objective { color: var(--color-text-secondary); margin-top: var(--space-3); }
.missions-objective strong { color: var(--color-text); }

/* ===== RECORDS / STEPPER ===== */
.stepper { display: flex; border-top: 1px solid var(--color-border); margin-top: var(--space-4); }
.stepper-item {
  flex: 1;
  padding: var(--space-3) var(--space-2) 0;
  border-left: 1px solid var(--color-border);
  position: relative;
  opacity: 1;
}
.stepper-item:first-child { border-left: none; }
.stepper-item:not(.is-active) .stepper-name { color: var(--color-text-secondary); }
.stepper-item:not(.is-active) .stepper-index { color: var(--color-text-tertiary); }
.stepper-item.is-active::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent-glow-end);
}
.stepper-index { display: block; font-family: var(--font-display); font-size: 1.25rem; color: var(--color-text-tertiary); }
.stepper-item.is-active .stepper-index { color: var(--color-accent); }
.stepper-name { display: block; font-family: var(--font-display); letter-spacing: 0.05em; margin-block: var(--space-1); }
.stepper-desc { display: block; font-size: 0.8rem; color: var(--color-text-secondary); }
.stepper-footnote { margin-top: var(--space-3); font-size: 0.8rem; color: var(--color-text-secondary); }

@media (max-width: 768px) {
  .stepper { flex-direction: column; }
  .stepper-item { border-left: none; border-top: 1px solid var(--color-border); padding: var(--space-3) 0; }
  .stepper-item:first-child { border-top: none; }
  .stepper-item.is-active::before { top: 0; left: calc(-1 * var(--space-1)); width: 3px; height: 100%; }
}

/* ===== ARCHIVES ===== */
.archives-inner {
  max-width: 600px;
  text-align: center;
  margin-inline: auto;
  border: 1px dashed var(--color-border);
  padding: var(--space-6) var(--space-4);
}
.archives-inner p { color: var(--color-text-secondary); margin-top: var(--space-2); }
.archives-inner .archives-status {
  font-family: var(--font-display);
  color: var(--color-accent);
  letter-spacing: 0.05em;
  margin-top: var(--space-3);
}

/* ===== ABOUT ===== */
.about-inner { max-width: 640px; }
.about-inner p { color: var(--color-text-secondary); margin-top: var(--space-3); }
.about-est { font-family: var(--font-display); color: var(--color-text-secondary); letter-spacing: 0.1em; }

/* ===== CONTACT / FOOTER ===== */
.site-footer { padding-block: var(--space-7); }
.footer-top { max-width: 480px; margin-bottom: var(--space-6); }
.footer-top p { color: var(--color-text-secondary); margin-top: var(--space-2); margin-bottom: var(--space-3); }
.notify-form { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.notify-form[hidden] {
  /* Author CSS beats the browser's default [hidden]{display:none} rule
     regardless of specificity, so the unconditional display:flex above
     would otherwise keep the form (and its stuck "Sending…" button)
     visibly on-screen even after JS sets the hidden attribute. */
  display: none;
}
.notify-form input {
  flex: 1;
  min-width: 200px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: var(--space-2);
  font-family: var(--font-body);
}
.notify-confirm { color: var(--color-accent); margin-top: var(--space-2); font-size: 0.85rem; }
.notify-error { color: var(--color-text); margin-top: var(--space-2); font-size: 0.85rem; }

.social-links { display: flex; gap: var(--space-3); margin-bottom: var(--space-6); }
.social-links a, .social-links .social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.social-links a svg, .social-links .social-link svg { width: 18px; height: 18px; }
.social-links a:hover, .social-links a:focus-visible { border-color: var(--color-accent); color: var(--color-accent); }
.social-link.is-disabled { opacity: 0.35; cursor: default; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.08em;
}
.logo-word-sm { font-family: var(--font-display); color: var(--color-text-secondary); }

/* ===== MOTION ===== */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@keyframes accent-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.eyebrow::before { animation: accent-pulse 2.4s ease-in-out infinite; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .eyebrow::before { animation: none; }
  .hero-divider-line, .hero-divider-dot { animation: none; }
}