/* =========================================================
   SKYFANG DEFENCE — global stylesheet
   Premium defence-tech theme. Charcoal / graphite / steel.
   Bilingual-safe layouts (EN + UA).
   ========================================================= */

:root {
  /* Core palette (per brief) */
  --bg:            #0F1113;
  --bg-2:          #171A1E;
  --surface:       #23282E;
  --border:        #3A424B;
  --text:          #E8EAEC;
  --text-high:     #FFFFFF;
  --text-muted:    #AEB5BC;

  /* Restrained accents */
  --accent:        #C8CCD0;   /* metallic silver */
  --accent-cold:   #7F8C99;   /* cold blue-grey  */
  --accent-line:   #5B6470;

  /* Spacing scale */
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  /* Type scale */
  --fs-display: clamp(2.4rem, 5.2vw, 4.6rem);
  --fs-h1:      clamp(2rem, 3.6vw, 3rem);
  --fs-h2:      clamp(1.5rem, 2.4vw, 2.1rem);
  --fs-h3:      clamp(1.15rem, 1.6vw, 1.35rem);
  --fs-body:    1rem;
  --fs-small:   .875rem;
  --fs-xs:      .75rem;

  --radius-sm: 2px;
  --radius:    4px;
  --radius-lg: 6px;

  --container: 1280px;
  --container-narrow: 960px;

  --transition: 220ms cubic-bezier(.2,.7,.2,1);

  --header-h: 76px;
}

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

html, body { margin: 0; padding: 0; }

html {
  background: var(--bg);
  color: var(--text);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--fs-body);
  line-height: 1.6;
  font-weight: 400;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1.15;
  margin: 0 0 var(--space-4);
  color: var(--text-high);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

.display {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: var(--fs-display);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -.02em;
  text-transform: uppercase;
  color: var(--text-high);
}

.eyebrow {
  font-size: var(--fs-xs);
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: var(--space-4);
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--accent-line);
}

p { margin: 0 0 var(--space-4); color: var(--text); }
.lead { font-size: 1.125rem; color: var(--text); max-width: 62ch; }
.muted { color: var(--text-muted); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

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

.section { padding: var(--space-9) 0; }
.section--tight { padding: var(--space-7) 0; }
.section--alt   { background: var(--bg-2); }

.section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-7);
  max-width: 820px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 17, 19, .82);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid rgba(58, 66, 75, .55);
  height: var(--header-h);
  display: flex;
  align-items: center;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  letter-spacing: .22em;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: .92rem;
  text-transform: uppercase;
  color: var(--text-high);
  white-space: nowrap;
  flex-shrink: 0;
  order: 1;
}

.brand__mark {
  display: inline-block;
  width: 22px; height: 22px;
  background: linear-gradient(135deg, #E8EAEC 0%, #7F8C99 100%);
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M12 2 L22 22 L12 17 L2 22 Z' fill='black'/></svg>") center/contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M12 2 L22 22 L12 17 L2 22 Z' fill='black'/></svg>") center/contain no-repeat;
  flex-shrink: 0;
}

.brand__text { display: inline-flex; align-items: center; gap: .55rem; }
.brand__tag {
  opacity: .55;
  letter-spacing: .2em;
  font-weight: 500;
  font-size: .72rem;
  padding-left: .55rem;
  border-left: 1px solid rgba(232,234,236,.18);
}

.brand small { color: var(--text-muted); font-weight: 500; letter-spacing: .28em; }

/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex: 1;
  justify-content: center;
  order: 2;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0; padding: 0;
}

.nav__link {
  position: relative;
  font-size: .88rem;
  letter-spacing: .04em;
  color: var(--text);
  padding: .35rem 0;
  transition: color var(--transition);
  white-space: nowrap;
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav__link:hover,
.nav__link[aria-current="page"] { color: var(--text-high); }
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* In-panel language switcher (mobile only — hidden on desktop) */
.nav__lang { display: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  order: 3;
}

/* Language switcher */
.lang {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(35, 40, 46, .55);
  padding: 2px;
  gap: 2px;
}

.lang__btn {
  background: transparent;
  border: 0;
  color: var(--text-muted);
  padding: .42rem .6rem;
  font-size: .72rem;
  letter-spacing: .14em;
  font-weight: 600;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  border-radius: 2px;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
}

.lang__btn:hover { color: var(--text-high); }
.lang__btn[aria-pressed="true"] {
  background: var(--surface);
  color: var(--text-high);
}

/* SVG flag icons — render identically everywhere */
.lang__flag {
  display: inline-block;
  width: 20px;
  height: 14px;
  border-radius: 1px;
  box-shadow: 0 0 0 1px rgba(0,0,0,.35), 0 1px 2px rgba(0,0,0,.4);
  flex-shrink: 0;
  vertical-align: middle;
  background: #0F1113;
  overflow: hidden;
}

.lang__code { line-height: 1; }

/* Mobile toggle (hidden on desktop) */
.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--text);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.menu-toggle:hover { border-color: var(--accent); color: var(--text-high); }
.menu-toggle:active { background: rgba(232,234,236,.04); }

.menu-toggle__bars {
  position: relative;
  width: 20px; height: 14px;
  display: inline-block;
}
.menu-toggle__bars span {
  position: absolute;
  left: 0; right: 0;
  height: 1.5px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 280ms cubic-bezier(.2,.7,.2,1), opacity 200ms ease, top 280ms cubic-bezier(.2,.7,.2,1);
}
.menu-toggle__bars span:nth-child(1) { top: 0; }
.menu-toggle__bars span:nth-child(2) { top: 6px; }
.menu-toggle__bars span:nth-child(3) { top: 12px; }

/* Animated to X when nav is open */
.menu-toggle[aria-expanded="true"] .menu-toggle__bars span:nth-child(1) { top: 6px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars span:nth-child(3) { top: 6px; transform: rotate(-45deg); }

/* Mobile nav backdrop */
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 10, 12, .6);
  z-index: 48;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  backdrop-filter: blur(4px);
}
.nav-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ---------- Buttons ---------- */
.btn {
  --bg-btn: transparent;
  --fg-btn: var(--text-high);
  --bd-btn: var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .85rem 1.4rem;
  font-size: .82rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-weight: 600;
  background: var(--bg-btn);
  color: var(--fg-btn);
  border: 1px solid var(--bd-btn);
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
}

.btn:hover {
  border-color: var(--accent);
  background: rgba(232, 234, 236, .04);
  transform: translateY(-1px);
}

.btn--primary {
  --bg-btn: var(--text-high);
  --fg-btn: #0B0D0F;
  --bd-btn: var(--text-high);
}
.btn--primary:hover {
  --bg-btn: transparent;
  --fg-btn: var(--text-high);
  --bd-btn: var(--text-high);
  background: transparent;
}

.btn--ghost { --bg-btn: transparent; --fg-btn: var(--text); --bd-btn: var(--border); }

.btn .arrow {
  width: 14px; height: 14px;
  display: inline-block;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M5 12h14M13 6l6 6-6 6' fill='none' stroke='black' stroke-width='2' stroke-linecap='square'/></svg>") center/contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M5 12h14M13 6l6 6-6 6' fill='none' stroke='black' stroke-width='2' stroke-linecap='square'/></svg>") center/contain no-repeat;
  transition: transform var(--transition);
}
.btn:hover .arrow { transform: translateX(3px); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  padding: var(--space-8) 0;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(60% 50% at 80% 20%, rgba(127,140,153,.18), transparent 60%),
    radial-gradient(50% 60% at 10% 90%, rgba(35,40,46,.5), transparent 70%),
    linear-gradient(180deg, #0B0D0F 0%, #0F1113 100%);
}

.hero::before {
  /* subtle grid */
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(58,66,75,.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(58,66,75,.18) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  z-index: -1;
  opacity: .55;
}

.hero__content {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: var(--space-8);
  align-items: center;
}

.hero__brandline {
  font-size: .78rem;
  letter-spacing: .42em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: var(--space-5);
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.hero__brandline::before {
  content: '';
  width: 38px; height: 1px;
  background: var(--accent-line);
}

.hero__title {
  font-size: clamp(2.6rem, 6.5vw, 5.5rem);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: .98;
  letter-spacing: -.02em;
  text-transform: uppercase;
  color: var(--text-high);
  margin: 0 0 var(--space-5);
}

.hero__title .accent-bar {
  display: inline-block;
  width: 56px; height: 4px;
  background: var(--text-high);
  margin-right: .8rem;
  vertical-align: .55rem;
}

.hero__lede {
  font-size: 1.15rem;
  max-width: 52ch;
  color: var(--text);
  margin-bottom: var(--space-3);
}

.hero__sub {
  color: var(--text-muted);
  max-width: 52ch;
  font-size: .98rem;
}

.hero__visual {
  position: relative;
  aspect-ratio: 4 / 5;
  background: linear-gradient(160deg, #1A1E23 0%, #0D0F11 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__visual::after {
  /* corner targeting marks */
  content: '';
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(232,234,236,.08);
  pointer-events: none;
  background:
    linear-gradient(white, white) 0 0 / 14px 1px no-repeat,
    linear-gradient(white, white) 0 0 / 1px 14px no-repeat,
    linear-gradient(white, white) 100% 0 / 14px 1px no-repeat,
    linear-gradient(white, white) 100% 0 / 1px 14px no-repeat,
    linear-gradient(white, white) 0 100% / 14px 1px no-repeat,
    linear-gradient(white, white) 0 100% / 1px 14px no-repeat,
    linear-gradient(white, white) 100% 100% / 14px 1px no-repeat,
    linear-gradient(white, white) 100% 100% / 1px 14px no-repeat;
  opacity: .35;
}

.hero__visual img,
.hero__visual svg {
  width: 88%; height: 88%; object-fit: contain;
}

.hero__meta {
  position: absolute;
  left: 24px; bottom: 22px;
  font-size: .68rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--text-muted);
  z-index: 2;
}

/* ---------- Page header (non-home) ---------- */
.page-hero {
  padding: calc(var(--header-h) + var(--space-7)) 0 var(--space-8);
  background:
    radial-gradient(50% 60% at 90% 0%, rgba(127,140,153,.12), transparent 70%),
    linear-gradient(180deg, #0B0D0F 0%, #0F1113 100%);
  border-bottom: 1px solid var(--border);
}

.page-hero .eyebrow { margin-bottom: var(--space-3); }
.page-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  text-transform: uppercase;
  letter-spacing: -.01em;
  font-family: 'Space Grotesk', sans-serif;
  margin-bottom: var(--space-4);
}

.page-hero p { max-width: 60ch; color: var(--text-muted); }

/* ---------- Cards ---------- */
.grid {
  display: grid;
  gap: var(--space-5);
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-6);
  position: relative;
  transition: border-color var(--transition), transform var(--transition), background var(--transition);
}

.card:hover {
  border-color: var(--accent-cold);
  transform: translateY(-2px);
}

.card__num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: .85rem;
  letter-spacing: .2em;
  color: var(--accent);
  margin-bottom: var(--space-5);
  display: inline-block;
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.card__body { color: var(--text-muted); font-size: .95rem; margin: 0; }

/* Capability cards (with icon strip) */
.cap-card { padding: var(--space-6); }
.cap-card .cap-icon {
  width: 36px; height: 36px;
  border: 1px solid var(--accent-line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--accent);
  border-radius: 2px;
}
.cap-card .cap-icon svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.5; }

/* Product cards */
.product-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), border-color var(--transition);
}
.product-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-cold);
}

.product-card__media {
  aspect-ratio: 4 / 3;
  background: #0E1114;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.product-card__media img,
.product-card__media svg {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 700ms cubic-bezier(.2,.7,.2,1);
}
.product-card:hover .product-card__media img,
.product-card:hover .product-card__media svg { transform: scale(1.03); }

.product-card__body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

.product-card__tag {
  font-size: .7rem;
  letter-spacing: .24em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.product-card__title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: -.005em;
  text-transform: uppercase;
  margin: 0;
  color: var(--text-high);
}

.product-card__desc { color: var(--text-muted); font-size: .95rem; margin: 0; flex: 1; }

.product-card__cta {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  color: var(--text-high);
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-weight: 600;
  margin-top: var(--space-3);
}

.product-card__cta .arrow {
  width: 14px; height: 14px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M5 12h14M13 6l6 6-6 6' fill='none' stroke='black' stroke-width='2' stroke-linecap='square'/></svg>") center/contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M5 12h14M13 6l6 6-6 6' fill='none' stroke='black' stroke-width='2' stroke-linecap='square'/></svg>") center/contain no-repeat;
  transition: transform var(--transition);
}
.product-card:hover .product-card__cta .arrow { transform: translateX(4px); }

.product-card__status {
  position: absolute;
  top: var(--space-4); left: var(--space-4);
  font-size: .65rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  background: rgba(11,13,15,.7);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: .35rem .55rem;
  border-radius: 2px;
  backdrop-filter: blur(6px);
}

/* Featured row: 3-up product showcase */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }

/* Application list */
.applications {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.app-item {
  background: var(--bg-2);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-height: 180px;
  transition: background var(--transition);
}
.app-item:hover { background: var(--surface); }
.app-item__index {
  font-family: 'Space Grotesk', sans-serif;
  color: var(--accent);
  font-size: .8rem;
  letter-spacing: .2em;
}
.app-item__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  text-transform: uppercase;
  color: var(--text-high);
  margin: 0;
}
.app-item__text { color: var(--text-muted); font-size: .92rem; margin: 0; }

/* Evidence / media */
.evidence-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-auto-rows: 220px;
  gap: var(--space-3);
}
.evidence-tile {
  background: var(--bg-2);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.evidence-tile--tall { grid-row: span 2; }
.evidence-tile img, .evidence-tile svg {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 700ms ease, filter var(--transition);
  filter: grayscale(20%) contrast(1.05);
}
.evidence-tile:hover img, .evidence-tile:hover svg {
  transform: scale(1.04);
  filter: grayscale(0%) contrast(1.05);
}
.evidence-tile__caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: var(--space-4);
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-high);
  background: linear-gradient(180deg, transparent, rgba(11,13,15,.75));
}

/* CTA banner */
.cta-banner {
  background: linear-gradient(135deg, #14181C 0%, #0B0D0F 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-8);
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--space-6);
  align-items: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::after {
  content: '';
  position: absolute;
  right: -10%; top: -40%;
  width: 60%; aspect-ratio: 1;
  background: radial-gradient(circle, rgba(127,140,153,.18), transparent 60%);
  pointer-events: none;
}
.cta-banner h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  text-transform: uppercase;
  margin: 0 0 var(--space-3);
}
.cta-banner p { color: var(--text-muted); margin: 0; max-width: 50ch; }
.cta-banner .btn-row { justify-content: flex-end; margin-top: 0; }

/* ---------- Footer ---------- */
.site-footer {
  background: #0A0C0E;
  border-top: 1px solid var(--border);
  padding: var(--space-8) 0 var(--space-5);
  margin-top: var(--space-9);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid var(--border);
}

.footer-col h4 {
  font-size: .72rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-2); }
.footer-col a { font-size: .92rem; color: var(--text-muted); transition: color var(--transition); }
.footer-col a:hover { color: var(--text-high); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-5);
  gap: var(--space-4);
  color: var(--text-muted);
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 380px;
}
.footer-brand p { color: var(--text-muted); font-size: .92rem; margin: 0; }

/* ---------- Product detail page ---------- */
.product-detail {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: var(--space-8);
  align-items: start;
}

.product-detail__media {
  background: #0E1114;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-detail__media svg, .product-detail__media img { width: 100%; height: 100%; object-fit: contain; padding: 24px; }

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-5) 0 var(--space-3);
}
.spec-table th, .spec-table td {
  text-align: left;
  padding: .9rem 0;
  border-bottom: 1px solid var(--border);
  font-size: .92rem;
}
.spec-table th {
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: .75rem;
  width: 42%;
}
.spec-table td { color: var(--text-high); }

.tba {
  display: inline-block;
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px dashed var(--border);
  padding: .25rem .5rem;
  border-radius: 2px;
}

/* ---------- Media gallery (Media page) ---------- */
.media-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}
.media-filter button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: .5rem .9rem;
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all var(--transition);
}
.media-filter button:hover { color: var(--text-high); border-color: var(--accent-cold); }
.media-filter button[aria-pressed="true"] {
  background: var(--surface);
  color: var(--text-high);
  border-color: var(--accent);
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.media-tile {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 4/3;
  position: relative;
  cursor: pointer;
}
.media-tile svg, .media-tile img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 700ms ease;
}
.media-tile:hover svg, .media-tile:hover img { transform: scale(1.04); }
.media-tile__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-3) var(--space-4);
  background: linear-gradient(180deg, transparent, rgba(11,13,15,.85));
  color: var(--text-high);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(8,10,12,.94);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  backdrop-filter: blur(8px);
}
.lightbox.is-open { display: flex; }
.lightbox__inner {
  max-width: 1100px; width: 100%;
  max-height: 90vh;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  position: relative;
}
.lightbox__inner svg, .lightbox__inner img {
  width: 100%; height: 75vh; object-fit: contain;
}
.lightbox__close {
  position: absolute;
  top: 12px; right: 12px;
  width: 40px; height: 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 2px;
  display: inline-flex;
  align-items: center; justify-content: center;
}
.lightbox__caption {
  text-align: center;
  margin-top: var(--space-3);
  color: var(--text-muted);
  font-size: .85rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ---------- Contact form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}
.contact-info { display: flex; flex-direction: column; gap: var(--space-5); }
.contact-info dl { margin: 0; display: grid; gap: var(--space-4); }
.contact-info dt {
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: .25rem;
}
.contact-info dd { margin: 0; color: var(--text-high); font-size: 1rem; }

.contact-form {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-6);
}
.field { display: grid; gap: .35rem; margin-bottom: var(--space-4); }
.field label {
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.field input, .field select, .field textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-high);
  padding: .75rem .9rem;
  font: inherit;
  font-size: .95rem;
  border-radius: var(--radius);
  transition: border-color var(--transition);
  width: 100%;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 0;
  border-color: var(--accent);
}

.form-note {
  font-size: .75rem;
  color: var(--text-muted);
  margin-top: var(--space-3);
}

/* ---------- About / mission ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}
.split--image-right > :nth-child(2) {
  background: var(--bg-2);
  border: 1px solid var(--border);
  aspect-ratio: 5/4;
  border-radius: var(--radius);
  overflow: hidden;
}

.mission-list {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.mission-list li {
  background: var(--bg-2);
  padding: var(--space-5) var(--space-6);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-5);
  align-items: baseline;
}
.mission-list li span:first-child {
  font-family: 'Space Grotesk', sans-serif;
  color: var(--accent);
  letter-spacing: .2em;
  font-size: .85rem;
}
.mission-list li strong {
  color: var(--text-high);
  letter-spacing: .04em;
  font-weight: 600;
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms cubic-bezier(.2,.7,.2,1), transform 700ms cubic-bezier(.2,.7,.2,1);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Mobile ---------- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .hero__content { grid-template-columns: 1fr; }
  .hero__visual { max-width: 520px; aspect-ratio: 4/3; }
  .product-detail { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .evidence-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 200px; }
  .evidence-tile--tall { grid-row: span 1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .media-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-banner { grid-template-columns: 1fr; }
  .cta-banner .btn-row { justify-content: flex-start; }
}

/* Burger appears at ≤ 960px (tablets + phones) */
@media (max-width: 960px) {
  .menu-toggle { display: inline-flex; }
  .brand__tag { display: none; }

  /* Hide the desktop language switcher in header — moved into the panel */
  .site-header .header-actions > .lang { display: none; }

  /* Convert nav into a slide-down full-width panel */
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: var(--space-5) var(--space-5) var(--space-6);
    gap: var(--space-5);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 320ms cubic-bezier(.2,.7,.2,1), opacity 220ms ease, visibility 0s linear 220ms;
    z-index: 49;
    box-shadow: 0 24px 48px rgba(0,0,0,.45);
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    transition: transform 320ms cubic-bezier(.2,.7,.2,1), opacity 220ms ease, visibility 0s linear 0s;
  }
  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav__link {
    padding: var(--space-4) 0;
    font-size: 1rem;
    letter-spacing: .06em;
    text-transform: uppercase;
    border-bottom: 1px solid rgba(58,66,75,.4);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .nav__link::after { display: none; }
  .nav__link[aria-current="page"] {
    color: var(--text-high);
  }
  .nav__link[aria-current="page"]::before {
    content: '';
    display: inline-block;
    width: 18px; height: 1px;
    background: var(--accent);
    margin-right: var(--space-3);
  }

  /* Language switcher inside mobile panel */
  .nav__lang {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
    padding-top: var(--space-3);
    border-top: 1px solid rgba(58,66,75,.4);
  }
  .nav__lang .lang__btn {
    width: 100%;
    justify-content: center;
    padding: .85rem 1rem;
    font-size: .82rem;
    border: 1px solid var(--border);
    background: var(--bg-2);
    color: var(--text);
  }
  .nav__lang .lang__btn[aria-pressed="true"] {
    background: var(--surface);
    color: var(--text-high);
    border-color: var(--accent);
  }
  .nav__lang .lang__flag { width: 22px; height: 16px; }

  /* Lock scroll when menu is open */
  body.menu-open { overflow: hidden; }
}

@media (max-width: 720px) {
  :root { --header-h: 64px; }
  .container { padding: 0 var(--space-4); }
  .section { padding: var(--space-7) 0; }
  .grid--2, .grid--3, .grid--4, .product-grid,
  .applications, .footer-grid, .media-grid, .evidence-grid {
    grid-template-columns: 1fr;
  }
  .hero { min-height: auto; padding: var(--space-7) 0 var(--space-8); }
  .hero__visual { max-width: 100%; }
  .cta-banner { padding: var(--space-6); }
  .product-detail__media { aspect-ratio: 4/3; }
  .brand { font-size: .82rem; gap: .5rem; }
  .brand__mark { width: 20px; height: 20px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* Selection */
::selection { background: var(--accent); color: #0B0D0F; }

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