/* Phase 36A: shared Oxide site shell and design tokens. */
:root {
  --site-bg: #020604;
  --site-bg-deep: #050b08;
  --site-bg-soft: #07110d;
  --site-panel: #0b1210;
  --site-panel-strong: #101814;
  --site-ink: #f2f7f4;
  --site-muted: #a7b9b1;
  --site-dim: #71857c;
  --site-accent: #00d892;
  --site-accent-strong: #1dffb2;
  --site-mint: #8cffdf;
  --site-border: rgba(140, 255, 223, 0.16);
  --site-border-strong: rgba(140, 255, 223, 0.34);
  --site-content-width: 94vw;
  --site-content-max: 2200px;
  --site-header-height: clamp(74px, 4.2vw, 88px);
  --site-section-space: clamp(72px, 8vw, 148px);
  --site-radius: 4px;
  --site-focus: 0 0 0 3px rgba(29, 255, 178, 0.32);
  --site-display: "Tektur", "Onest", system-ui, sans-serif;
  --site-body: "Onest", system-ui, sans-serif;
}

html {
  background: var(--site-bg);
}

body.oxide-production {
  --accent: var(--site-accent);
  --accent-primary: var(--site-accent);
  --color-accent: var(--site-accent);
  --color-terminal-green: var(--site-accent);
  --phase9-cyan: var(--site-accent);
  --phase9-blue: var(--site-accent);
  --phase10-blue: var(--site-accent);
  --phase13-blue: rgba(140, 255, 223, 0.2);
  --phase16c-cyan: var(--site-accent);
  --phase16c-blue: rgba(140, 255, 223, 0.22);
  min-width: 320px;
  overflow-x: clip;
  background: var(--site-bg);
  color: var(--site-ink);
  font-family: var(--site-body);
}

body.oxide-production .site-wrapper {
  display: flex;
  min-height: 100svh;
  flex-direction: column;
  overflow: clip;
  background: var(--site-bg);
}

body.oxide-production .site-wrapper > main {
  flex: 1 0 auto;
}

body.oxide-production .container,
body.oxide-production .site-wide-inner {
  width: var(--site-content-width);
  max-width: var(--site-content-max);
  margin-inline: auto;
  padding-inline: 0;
}

body.oxide-production a {
  color: inherit;
}

body.oxide-production :where(a, button, input, textarea, select):focus-visible {
  outline: none;
  box-shadow: var(--site-focus);
}

body.oxide-production .skip-link {
  z-index: 1100;
  border: 1px solid var(--site-border-strong);
  background: var(--site-panel-strong);
  color: var(--site-mint);
  font-family: var(--site-body);
}

/* Shared header */
body.oxide-production .header {
  position: sticky;
  z-index: 100;
  top: 0;
  width: 100%;
  min-height: var(--site-header-height);
  padding: 0;
  border-bottom: 1px solid var(--site-border);
  background: rgba(2, 6, 4, 0.9);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

body.oxide-production .header.scrolled {
  border-bottom-color: var(--site-border-strong);
  background: rgba(2, 6, 4, 0.97);
}

body.oxide-production .header .container {
  width: var(--site-content-width);
  max-width: var(--site-content-max);
  margin-inline: auto;
  padding: 0;
}

body.oxide-production .header-content {
  display: flex;
  width: 100%;
  max-width: none;
  margin-inline: 0;
  padding: 0;
  min-height: var(--site-header-height);
  align-items: center;
  gap: clamp(22px, 2.4vw, 56px);
}

body.oxide-production .logo,
body.oxide-production .footer-logo {
  flex: 0 0 auto;
  color: var(--site-ink);
}

body.oxide-production .logo {
  gap: 10px;
}

body.oxide-production .logo-icon {
  width: clamp(30px, 1.8vw, 34px);
  height: clamp(30px, 1.8vw, 34px);
}

body.oxide-production .logo-text,
body.oxide-production .footer-logo .logo-text {
  color: var(--site-ink);
  font-family: var(--site-body);
  font-size: clamp(17px, 1.05vw, 21px);
  font-weight: 750;
  letter-spacing: 0.025em;
}

body.oxide-production .logo-line {
  width: 100%;
  background: var(--site-accent);
}

body.oxide-production .nav {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  justify-content: flex-end;
  gap: clamp(24px, 1.65vw, 38px);
}

body.oxide-production .nav-link {
  position: relative;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: rgba(242, 247, 244, 0.78);
  font-family: var(--site-body);
  font-size: clamp(15px, 0.78vw, 17px);
  font-weight: 560;
  line-height: 1.2;
  white-space: nowrap;
  transition: color 180ms ease;
}

body.oxide-production .nav-link::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 1px;
  background: var(--site-accent);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

body.oxide-production .nav-link:hover,
body.oxide-production .nav-link.active {
  color: var(--site-mint);
}

body.oxide-production .nav-link:hover::after,
body.oxide-production .nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

body.oxide-production .header-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
}

body.oxide-production .header-actions .btn,
body.oxide-production .btn.btn-primary {
  min-height: clamp(44px, 2.4vw, 50px);
  padding: 0 clamp(18px, 1.35vw, 30px);
  border: 1px solid var(--site-accent);
  border-radius: var(--site-radius);
  background: var(--site-accent);
  color: #03100a;
  font-family: var(--site-body);
  font-size: clamp(14px, 0.78vw, 17px);
  font-weight: 750;
  letter-spacing: 0.01em;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

body.oxide-production .header-actions .btn:hover,
body.oxide-production .btn.btn-primary:hover {
  border-color: var(--site-accent-strong);
  background: var(--site-accent-strong);
  color: #020604;
  transform: translateY(-1px);
}

body.oxide-production .btn.btn-secondary {
  min-height: clamp(44px, 2.4vw, 50px);
  border: 1px solid var(--site-border-strong);
  border-radius: var(--site-radius);
  background: rgba(7, 17, 13, 0.68);
  color: var(--site-ink);
  font-family: var(--site-body);
  font-size: clamp(14px, 0.78vw, 17px);
  font-weight: 650;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

body.oxide-production .btn.btn-secondary:hover {
  border-color: var(--site-accent);
  background: rgba(0, 216, 146, 0.1);
  color: var(--site-mint);
  transform: translateY(-1px);
}

body.oxide-production .mobile-menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid var(--site-border-strong);
  border-radius: var(--site-radius);
  background: rgba(7, 17, 13, 0.84);
}

body.oxide-production .mobile-menu-toggle span {
  display: block;
  width: 19px;
  height: 1px;
  background: var(--site-mint);
  transition: transform 180ms ease, opacity 180ms ease;
}

body.oxide-production .mobile-menu-toggle.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

body.oxide-production .mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

body.oxide-production .mobile-menu-toggle.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

body.oxide-production .mobile-menu {
  display: none;
}

/* Shared footer */
body.oxide-production .footer {
  position: relative;
  z-index: 2;
  margin-top: auto;
  border-top: 1px solid var(--site-border-strong);
  background: var(--site-bg-deep);
}

body.oxide-production .footer::before {
  display: none;
}

body.oxide-production .footer .container {
  width: var(--site-content-width);
  max-width: var(--site-content-max);
  margin-inline: auto;
  padding: clamp(48px, 5.5vw, 92px) 0 24px;
}

body.oxide-production .footer-content {
  display: grid;
  grid-template-columns: minmax(240px, 1.35fr) repeat(3, minmax(150px, 1fr));
  gap: clamp(28px, 4vw, 86px);
  align-items: start;
}

body.oxide-production .footer-col {
  min-width: 0;
}

body.oxide-production .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

body.oxide-production .footer-description {
  max-width: 320px;
  margin: 20px 0 0;
  color: var(--site-muted);
  font-family: var(--site-body);
  font-size: 15px;
  line-height: 1.65;
}

body.oxide-production .footer-title {
  margin: 3px 0 17px;
  color: var(--site-mint);
  font-family: var(--site-body);
  font-size: 15px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

body.oxide-production .footer-links {
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 0;
  list-style: none;
}

body.oxide-production .footer-links a,
body.oxide-production .footer-legal a {
  color: var(--site-muted);
  font-family: var(--site-body);
  font-size: 15px;
  line-height: 1.45;
  transition: color 180ms ease;
}

body.oxide-production .footer-links a::after {
  display: none;
}

body.oxide-production .footer-links a:hover,
body.oxide-production .footer-legal a:hover {
  color: var(--site-mint);
}

body.oxide-production .footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: clamp(44px, 6vw, 88px);
  padding-top: 20px;
  border-top: 1px solid var(--site-border);
}

body.oxide-production .footer-copyright,
body.oxide-production .footer-legal {
  margin: 0;
  color: var(--site-dim);
  font-family: var(--site-body);
  font-size: 13px;
  line-height: 1.5;
}

body.oxide-production .footer-legal {
  display: flex;
  gap: 18px;
}

@media (max-width: 1040px) {
  body.oxide-production .header-content {
    gap: 18px;
  }

  body.oxide-production .nav {
    gap: 18px;
  }

  body.oxide-production .nav-link {
    font-size: 14px;
  }

  body.oxide-production .header-actions .btn {
    padding-inline: 16px;
  }
}

@media (max-width: 860px) {
  body.oxide-production .header-content {
    justify-content: space-between;
  }

  body.oxide-production .nav,
  body.oxide-production .header-actions {
    display: none;
  }

  /* The shared shell owns the closed mobile header. Some legacy pages carry
     phase16c mobile action rules later in the cascade; keep their CTA in the
     shared mobile menu instead of showing a desktop action in the header. */
  body.oxide-production.phase16c-unified .header-actions,
  body.oxide-production.phase16c-unified .header-actions .btn-primary {
    display: none !important;
  }

  body.oxide-production .mobile-menu-toggle {
    display: inline-flex;
  }

  body.oxide-production .mobile-menu {
    position: fixed;
    z-index: 90;
    top: var(--site-header-height);
    right: 3vw;
    left: 3vw;
    display: block;
    max-height: calc(100svh - var(--site-header-height) - 24px);
    overflow: auto;
    padding: 10px;
    border: 1px solid var(--site-border-strong);
    background: rgba(5, 11, 8, 0.98);
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.46);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
    visibility: hidden;
  }

  body.oxide-production .mobile-menu.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    visibility: visible;
  }

  body.oxide-production .mobile-nav {
    display: grid;
    gap: 2px;
  }

  body.oxide-production .mobile-nav .nav-link {
    min-height: 48px;
    padding: 12px 13px;
    border-bottom: 1px solid var(--site-border);
    font-size: 16px;
  }

  body.oxide-production .mobile-nav .nav-link::after {
    display: none;
  }

  body.oxide-production .mobile-nav .mobile-nav-cta {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
  }

  body.oxide-production.nav-open {
    overflow: hidden;
  }

  body.oxide-production .footer-content {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  :root {
    --site-content-width: 88vw;
    --site-section-space: 72px;
  }

  body.oxide-production .header .container,
  body.oxide-production .container,
  body.oxide-production .site-wide-inner,
  body.oxide-production .footer .container {
    width: 88vw;
  }

  body.oxide-production .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  body.oxide-production .footer-bottom {
    flex-direction: column;
    gap: 12px;
  }

  body.oxide-production .footer-legal {
    display: block;
  }
}

@media (min-width: 2800px) {
  :root {
    --site-header-height: clamp(88px, 4vw, 108px);
  }

  body.oxide-production .container,
  body.oxide-production .site-wide-inner,
  body.oxide-production .header .container,
  body.oxide-production .footer .container {
    width: 94vw;
    max-width: none;
  }

  body.oxide-production .header-content {
    gap: clamp(38px, 2.4vw, 88px);
  }

  body.oxide-production .header-content {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  body.oxide-production .logo-icon {
    width: clamp(34px, 1.8vw, 42px);
    height: clamp(34px, 1.8vw, 42px);
  }

  body.oxide-production .logo-text,
  body.oxide-production .footer-logo .logo-text {
    font-size: clamp(19px, 1.05vw, 26px);
  }

  body.oxide-production .nav {
    gap: clamp(32px, 2vw, 58px);
  }

  body.oxide-production .nav-link {
    min-height: 50px;
    font-size: clamp(17px, 0.86vw, 21px);
  }

  body.oxide-production .header-actions .btn,
  body.oxide-production .btn.btn-primary,
  body.oxide-production .btn.btn-secondary {
    min-height: clamp(50px, 2.4vw, 58px);
    padding-inline: clamp(22px, 1.35vw, 38px);
    font-size: clamp(16px, 0.82vw, 20px);
  }
}

@media (prefers-reduced-motion: reduce) {
  body.oxide-production * {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}
/* === PHASE 39H: SHARED MOBILE MENU POLISH === */

@media (max-width: 760px) {
  .mobile-menu {
    --ns-mobile-menu-pad: 18px;
  }

  .mobile-menu[aria-hidden="false"],
  .mobile-menu.is-open,
  .mobile-menu.open,
  body.menu-open .mobile-menu {
    background:
      radial-gradient(circle at 82% 10%, rgba(0, 216, 146, 0.09), transparent 32%),
      linear-gradient(180deg, rgba(3, 12, 8, 0.985), rgba(2, 8, 5, 0.99));
    backdrop-filter: blur(22px) saturate(118%);
  }

  .mobile-menu nav,
  .mobile-menu ul,
  .mobile-menu [class*="nav"],
  .mobile-menu [class*="links"] {
    gap: 10px;
  }

  .mobile-menu a:not([class*="logo"]),
  .mobile-menu button:not([class*="toggle"]):not([class*="close"]) {
    min-height: 54px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(140, 255, 223, 0.14);
    border-radius: 10px;
    background: rgba(7, 20, 14, 0.62);
    color: rgba(244, 249, 246, 0.94);
    font-size: 16px;
    font-weight: 650;
    letter-spacing: -0.01em;
    text-align: center;
    text-decoration: none;
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,0.035),
      0 10px 34px rgba(0,0,0,0.12);
  }

  .mobile-menu a:not([class*="logo"]):hover,
  .mobile-menu a:not([class*="logo"]):focus-visible {
    border-color: rgba(140, 255, 223, 0.34);
    background: rgba(10, 31, 21, 0.78);
    color: #8cffdf;
  }

  .mobile-menu a[class*="cta"],
  .mobile-menu [class*="consult"],
  .mobile-menu [class*="action"] a {
    min-height: 56px;
    border-color: rgba(140, 255, 223, 0.7);
    background: #73f4cf;
    color: #02110b;
    font-weight: 760;
    box-shadow: 0 12px 34px rgba(0, 216, 146, 0.16);
  }
}

/* === /PHASE 39H SHARED MOBILE MENU === */