/* ==========================================================================
   Murmex — site styles
   Design: "Kill Chain" direction. Dark ground, condensed display type,
   one signal colour, and a hero canvas that runs the detect/confirm/defeat
   chain. Mobile-first; the desktop layout starts at 1024px.
   ========================================================================== */

:root {
  --bg:        #06070a;
  --panel:     #0c0e13;
  --ink:       #e9ecf0;
  --muted:     #a5abb6;
  --dim:       #7d838e;
  --faint:     #5d636e;
  --accent:    #ff6b2c;

  --line:      rgba(233, 236, 240, 0.10);
  --line-firm: rgba(233, 236, 240, 0.14);
  --line-loud: rgba(233, 236, 240, 0.24);

  --display: 'Saira Condensed', 'Helvetica Neue Condensed', 'Arial Narrow', sans-serif;
  --body:    'Saira', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --mono:    'Azeret Mono', 'SF Mono', Menlo, Consolas, monospace;

  --gutter: clamp(20px, 4vw, 56px);
  --measure: 68ch;
}

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

html {
  scroll-behavior: smooth;
  /* the sticky-free header sits over the hero, so anchors need breathing room */
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: var(--display); font-weight: 600; margin: 0; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
img, svg, canvas { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; transition: color 140ms ease; }
a:hover { color: var(--accent); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.accent { color: var(--accent); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 14px 20px;
}
.skip-link:focus {
  left: 0;
  color: var(--bg);
}

/* --------------------------------------------------------------------------
   Shared type
   -------------------------------------------------------------------------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0;
}
.eyebrow--accent { color: var(--accent); }

.display {
  font-size: clamp(3.25rem, 11vw, 7.5rem);
  line-height: 0.86;
  letter-spacing: 0.005em;
  font-weight: 700;
  text-transform: uppercase;
}

.lede {
  font-size: clamp(1rem, 0.94rem + 0.3vw, 1.25rem);
  line-height: 1.55;
  color: var(--muted);
  max-width: 38ch;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header {
  position: absolute;
  inset-inline: 0;
  top: 0;
  z-index: 10;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 14px;
}

.wordmark {
  font-family: var(--display);
  font-size: clamp(1.4rem, 1.2rem + 0.6vw, 1.65rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.wordmark:hover { color: var(--ink); }

.nav { display: none; }

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 34px);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.nav__list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}
.nav__cta { color: var(--accent); }

.nav-toggle {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: -10px;
  padding: 0;
  background: none;
  border: 0;
  color: var(--ink);
  cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle__top,
.nav-toggle__mid,
.nav-toggle__bot { transition: transform 200ms ease, opacity 160ms ease; transform-origin: center; }

.nav-toggle[aria-expanded="true"] .nav-toggle__top { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__mid { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bot { transform: translateY(-5px) rotate(-45deg); }

.mobile-nav {
  background: var(--panel);
  border-block: 1px solid var(--line);
}
.mobile-nav ul {
  display: flex;
  flex-direction: column;
  padding-inline: var(--gutter);
}
.mobile-nav a {
  display: flex;
  align-items: center;
  min-height: 60px;
  border-bottom: 1px solid var(--line);
  font-family: var(--display);
  font-size: 1.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}
.mobile-nav li:last-child a { border-bottom: 0; }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: clamp(620px, 96svh, 900px);
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__veil {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(6, 7, 10, 0.88) 0%,
    rgba(6, 7, 10, 0.10) 16%,
    rgba(6, 7, 10, 0.34) 46%,
    rgba(6, 7, 10, 0.97) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  display: grid;
  gap: clamp(28px, 4vw, 64px);
  padding-block: clamp(28px, 5vw, 64px);
}

.hero__lede > * + * { margin-top: 18px; }

/* Chain control */

.chain > * + * { margin-top: 14px; }

.chain__buttons {
  display: flex;
  gap: 6px;
}

.chain__btn {
  flex: 1 1 0;
  min-height: 46px;
  padding: 13px 10px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line-loud);
  border-radius: 0;
  cursor: pointer;
  transition: color 140ms ease, background-color 140ms ease, border-color 140ms ease;
}
.chain__btn:hover { color: var(--ink); border-color: var(--ink); }
.chain__btn.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.chain__caption {
  font-size: 1rem;
  line-height: 1.55;
  color: #c3c8d0;
  min-height: 5.5em;
  max-width: 44ch;
}

.chain__note {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */

.section { padding-block: clamp(48px, 7vw, 88px); }

.section--panel {
  background: var(--panel);
  border-top: 1px solid var(--line);
}

.section--split { border-bottom: 1px solid var(--line); }

.section__grid { display: grid; gap: clamp(18px, 3vw, 64px); }

.section__label { margin-bottom: clamp(26px, 3vw, 40px); }

.prose { max-width: var(--measure); }
.prose > * + * { margin-top: 16px; }
.prose p { color: var(--muted); font-size: clamp(1rem, 0.97rem + 0.15vw, 1.125rem); line-height: 1.7; }
.prose__lead {
  color: var(--ink) !important;
  font-size: clamp(1.25rem, 1.1rem + 0.7vw, 1.5625rem) !important;
  line-height: 1.42 !important;
}

/* Systems */

.system {
  display: grid;
  gap: 14px;
  padding-block: clamp(24px, 3vw, 40px);
  border-top: 1px solid var(--line);
}

.system__code {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.system__name {
  font-size: clamp(2rem, 1.4rem + 2.4vw, 2.75rem);
  line-height: 0.98;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.system__status {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
}

.system__body {
  color: var(--muted);
  font-size: clamp(1rem, 0.97rem + 0.15vw, 1.125rem);
  line-height: 1.7;
  max-width: var(--measure);
}

/* Commitments */

.commitments { display: grid; gap: clamp(28px, 4vw, 64px); }
.commitments > div > * + * { margin-top: 12px; }
.commitments p { color: var(--muted); line-height: 1.7; max-width: 56ch; }

.commitment__title {
  font-size: clamp(1.75rem, 1.3rem + 1.8vw, 2.5rem);
  line-height: 1;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

/* Contact */

.contact { display: grid; gap: clamp(26px, 4vw, 64px); }

.contact__title {
  font-size: clamp(3rem, 2rem + 5vw, 4.5rem);
  line-height: 0.92;
  letter-spacing: 0.005em;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.contact__lede { color: var(--muted); max-width: 40ch; }

.contact__list {
  margin: 0;
  border-top: 1px solid var(--line-firm);
  font-family: var(--mono);
  font-size: 12px;
}

.contact__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 52px;
  border-bottom: 1px solid var(--line-firm);
}
.contact__row dt { color: var(--dim); text-transform: uppercase; letter-spacing: 0.1em; }
.contact__row dd { margin: 0; text-align: right; }

/* Footer */

.site-footer {
  background: var(--panel);
  border-top: 1px solid var(--line);
}
.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-block: 28px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

/* --------------------------------------------------------------------------
   Below the desktop breakpoint the hero is a single column, so the field
   reads as a band ABOVE the copy rather than behind it. There is no second
   column here to keep the headline clear of the track.
   -------------------------------------------------------------------------- */

@media (max-width: 1023px) {
  .hero {
    --hero-band: clamp(480px, 56vw, 580px);
    display: block;
    min-height: 0;
  }

  .hero__canvas,
  .hero__veil {
    height: var(--hero-band);
    bottom: auto;
  }

  .hero__veil {
    background: linear-gradient(
      180deg,
      rgba(6, 7, 10, 0.92) 0%,
      rgba(6, 7, 10, 0.10) 26%,
      rgba(6, 7, 10, 0.34) 60%,
      rgba(6, 7, 10, 0.94) 86%,
      var(--bg) 100%
    );
  }

  .hero__content {
    padding-top: calc(var(--hero-band) - 76px);
    padding-bottom: 40px;
  }
}

/* --------------------------------------------------------------------------
   Tablet and up
   -------------------------------------------------------------------------- */

@media (min-width: 720px) {
  .site-header__inner { padding-block: 20px; }
  .contact__list { font-size: 13px; }
  .site-footer__inner { flex-direction: row; justify-content: space-between; font-size: 10px; }
  .commitments { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chain__buttons { justify-content: flex-start; }
  .chain__btn { flex: 0 0 auto; padding-inline: 20px; font-size: 11px; letter-spacing: 0.16em; }
}

/* --------------------------------------------------------------------------
   Desktop
   -------------------------------------------------------------------------- */

@media (min-width: 1024px) {
  .nav { display: block; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none !important; }

  .hero__content {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: end;
  }

  .section__grid { grid-template-columns: minmax(0, 300px) minmax(0, 1fr); }

  .system {
    grid-template-columns: minmax(0, 460px) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }
  .system__body { padding-top: 6px; }
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}