/* ==========================================================================
   LGEN — Lean & Grow Engineering — Design System
   ========================================================================== */

@layer reset, tokens, base, layout, components, utilities;

/* ---------------------------------- reset ---------------------------------- */
@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  * { margin: 0; }
  html { -webkit-text-size-adjust: 100%; scrollbar-gutter: stable; }
  body { line-height: 1.5; -webkit-font-smoothing: antialiased; }
  img, picture, video, svg { display: block; max-width: 100%; }
  input, button, textarea, select { font: inherit; color: inherit; }
  button { cursor: pointer; background: none; border: none; }
  a { color: inherit; text-decoration: none; }
  ul, ol { list-style: none; padding: 0; }
  table { border-collapse: collapse; }

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

/* ---------------------------------- tokens ---------------------------------- */
@layer tokens {
  :root {
    /* dark (default) */
    --bg-primary: #0A0A0A;
    --bg-surface: #161616;
    --bg-surface-2: #1E1E1E;
    --text-primary: #FFFFFF;
    --text-secondary: #B8B8B8;
    --accent-primary: #F5871F;
    --accent-secondary: #FFC72C;
    --accent-gradient: linear-gradient(135deg, #F5871F, #FFC72C);
    --logo-gradient: linear-gradient(135deg, #F5871F, #FFC72C);
    --logo-blue: #1B4F91;
    --border: #2A2A2A;
    --focus-ring: #FFC72C;
    --shadow-color: 0 0% 0%;
    --overlay: rgba(10,10,10,.72);

    --font-display: "Space Grotesk", "Poppins", system-ui, sans-serif;
    --font-body: "Inter", "Public Sans", system-ui, sans-serif;

    --fs-12: .75rem; --fs-14: .875rem; --fs-16: 1rem; --fs-18: 1.125rem;
    --fs-24: 1.5rem; --fs-32: 2rem; --fs-48: 3rem; --fs-64: 4rem;

    --space-1: .25rem; --space-2: .5rem; --space-3: .75rem; --space-4: 1rem;
    --space-6: 1.5rem; --space-8: 2rem; --space-12: 3rem; --space-16: 4rem;
    --space-24: 6rem;

    --radius-sm: 6px; --radius-md: 12px; --radius-lg: 20px;
    --ease-out: cubic-bezier(.16,1,.3,1);
    --ease-in: cubic-bezier(.7,0,.84,0);
    --dur-micro: 180ms;
    --dur-base: 320ms;

    --container-max: 1280px;
    color-scheme: dark;
  }

  :root[data-theme="light"] {
    --bg-primary: #FFFFFF;
    --bg-surface: #F5F5F3;
    --bg-surface-2: #ECECE8;
    --text-primary: #111111;
    --text-secondary: #4A4A4A;
    --accent-primary: #E5720F;
    --accent-secondary: #C98F00;
    --accent-gradient: linear-gradient(135deg, #E5720F, #C98F00);
    --border: #E2E2E0;
    --focus-ring: #E5720F;
    --overlay: rgba(255,255,255,.72);
    color-scheme: light;
  }

  @media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) {
      --bg-primary: #FFFFFF;
      --bg-surface: #F5F5F3;
      --bg-surface-2: #ECECE8;
      --text-primary: #111111;
      --text-secondary: #4A4A4A;
      --accent-primary: #E5720F;
      --accent-secondary: #C98F00;
      --accent-gradient: linear-gradient(135deg, #E5720F, #C98F00);
      --border: #E2E2E0;
      --focus-ring: #E5720F;
      --overlay: rgba(255,255,255,.72);
      color-scheme: light;
    }
  }
}

/* ---------------------------------- base ---------------------------------- */
@layer base {
  html { font-family: var(--font-body); background: var(--bg-primary); }
  body {
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: background var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
  }

  h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -.01em;
    text-wrap: balance;
  }
  h1 { font-size: clamp(var(--fs-32), 5vw + 1rem, var(--fs-64)); }
  h2 { font-size: clamp(var(--fs-24), 3vw + 1rem, var(--fs-48)); }
  h3 { font-size: var(--fs-24); }
  h4 { font-size: var(--fs-18); }
  p { color: var(--text-secondary); max-width: 65ch; }

  :focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
  }

  ::selection { background: var(--accent-primary); color: #0A0A0A; }

  .skip-link {
    position: absolute; left: 1rem; top: -3rem;
    background: var(--accent-primary); color: #0A0A0A;
    padding: .75rem 1.25rem; border-radius: var(--radius-sm);
    font-weight: 700; z-index: 200;
    transition: top var(--dur-micro) var(--ease-out);
  }
  .skip-link:focus { top: 1rem; }
}

/* ---------------------------------- layout ---------------------------------- */
@layer layout {
  .container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-4);
  }
  @media (min-width: 768px) { .container { padding-inline: var(--space-8); } }

  section { padding-block: var(--space-16); }
  .section-tight { padding-block: var(--space-8); }

  .stack { display: flex; flex-direction: column; gap: var(--space-4); }
  .cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4); }

  .grid-auto {
    display: grid;
    gap: var(--space-6);
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  }

  .grid-4 {
    display: grid;
    gap: var(--space-6);
    grid-template-columns: repeat(4, 1fr);
  }
  @media (max-width: 1023px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 560px) { .grid-4 { grid-template-columns: 1fr; } }
}

/* ---------------------------------- components ---------------------------------- */
@layer components {

  /* ---- header ---- */
  .site-header {
    position: sticky; top: 0; z-index: 100;
    background: color-mix(in srgb, var(--bg-primary) 88%, transparent);
    backdrop-filter: blur(10px) saturate(140%);
    border-bottom: 1px solid var(--border);
  }
  .site-header__bar {
    display: flex; align-items: center; justify-content: space-between;
    gap: var(--space-4);
    padding-block: var(--space-3);
    min-height: 72px;
  }

  .logo { display: flex; align-items: center; gap: var(--space-3); }
  .logo__img {
    height: 52px; width: auto;
    display: block;
    /* PNG logo ships on a white card — keep it legible in dark mode too */
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 4px 8px;
  }
  @media (min-width: 1024px) { .logo__img { height: 64px; } }
  .logo__mark {
    position: relative;
    width: 42px; height: 42px;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background: var(--logo-gradient);
    display: grid; place-items: center;
    flex-shrink: 0;
    padding: 3px;
  }
  .logo__mark::before {
    content: "";
    position: absolute; inset: 3px;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background: #FFFFFF;
  }
  .logo__mark-text {
    position: relative; z-index: 1;
    font-family: var(--font-display); font-weight: 800;
    font-size: .95rem; letter-spacing: -.03em;
    color: var(--accent-primary);
  }
  .logo__mark-text em { font-style: normal; color: var(--logo-blue); }
  .logo__text { display: flex; flex-direction: column; line-height: 1.05; }
  .logo__text strong {
    font-family: var(--font-display); font-weight: 800;
    font-size: 1.05rem; letter-spacing: -.01em;
  }
  .logo__text small {
    font-size: .58rem; letter-spacing: .12em; color: var(--text-secondary);
    font-weight: 600;
  }

  .nav { display: none; }
  @media (min-width: 1024px) {
    .nav { display: flex; align-items: center; gap: var(--space-6); }
    .nav__list { display: flex; gap: var(--space-6); }
    .nav__link {
      font-size: var(--fs-14); font-weight: 600; color: var(--text-secondary);
      padding-block: var(--space-2);
      position: relative;
      transition: color var(--dur-micro) var(--ease-out);
    }
    .nav__link::after {
      content: ""; position: absolute; left: 0; right: 100%; bottom: -2px;
      height: 2px; background: var(--accent-gradient);
      transition: right var(--dur-base) var(--ease-out);
    }
    .nav__link:hover, .nav__link[aria-current="page"] { color: var(--text-primary); }
    .nav__link:hover::after, .nav__link[aria-current="page"]::after { right: 0; }
  }

  /* ---- nav dropdown (Produits) ---- */
  .nav__item--dropdown { position: relative; }
  .nav__item--dropdown > .nav__link::after {
    content: ""; display: inline-block; margin-left: 6px;
    width: 6px; height: 6px;
    border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
    transform: translateY(-2px) rotate(45deg);
    transition: transform var(--dur-micro) var(--ease-out);
  }
  .nav__item--dropdown:hover > .nav__link::after,
  .nav__item--dropdown:focus-within > .nav__link::after { transform: translateY(1px) rotate(225deg); }

  .nav__dropdown {
    position: absolute; top: calc(100% + 14px); left: 0;
    min-width: 300px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-2);
    box-shadow: 0 20px 40px -16px rgba(0,0,0,.45);
    display: grid; gap: 2px;
    opacity: 0; visibility: hidden; pointer-events: none;
    transform: translateY(8px);
    transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base);
    z-index: 110;
  }
  .nav__item--dropdown:hover .nav__dropdown,
  .nav__item--dropdown:focus-within .nav__dropdown {
    opacity: 1; visibility: visible; pointer-events: auto; transform: none;
  }
  .nav__dropdown li a {
    display: flex; align-items: center; min-height: 42px;
    padding: .5rem .75rem; border-radius: var(--radius-sm);
    font-size: var(--fs-14); font-weight: 600; color: var(--text-secondary);
    transition: background var(--dur-micro) var(--ease-out), color var(--dur-micro) var(--ease-out);
  }
  .nav__dropdown li a:hover, .nav__dropdown li a:focus-visible {
    background: var(--bg-surface-2); color: var(--accent-primary);
  }

  /* ---- mobile nav submenu (Produits) ---- */
  .mobile-nav__sublist {
    padding-left: var(--space-4);
    border-left: 2px solid var(--accent-primary);
    margin: 0 0 var(--space-2) var(--space-2);
  }
  .mobile-nav__sublink {
    display: flex; align-items: center; min-height: 44px;
    padding-block: var(--space-2);
    font-size: var(--fs-16); font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
  }
  .mobile-nav__sublink:hover, .mobile-nav__sublink:focus-visible { color: var(--accent-primary); }

  .header__actions { display: flex; align-items: center; gap: var(--space-3); }
  .header__actions .btn-primary { display: none; }
  @media (min-width: 1024px) { .header__actions .btn-primary { display: inline-flex; } }

  .mobile-nav__cta { margin-top: var(--space-6); }

  .lang-switch {
    display: flex; align-items: center; gap: 2px;
    border: 1px solid var(--border); border-radius: 999px;
    padding: 4px; font-size: var(--fs-12); font-weight: 700;
  }
  .lang-switch__link, .lang-switch__current {
    padding: 4px 9px; border-radius: 999px; line-height: 1;
    min-width: 30px; text-align: center;
  }
  .lang-switch__link { color: var(--text-secondary); }
  .lang-switch__link:hover { color: var(--text-primary); }
  .lang-switch__current { background: var(--accent-gradient); color: #0A0A0A; }

  .mobile-nav__lang {
    display: flex; align-items: center; gap: var(--space-2);
    margin-top: var(--space-4);
  }
  .mobile-nav__lang .lang-switch { padding: 5px; }
  .mobile-nav__lang .lang-switch__link, .mobile-nav__lang .lang-switch__current { padding: 6px 14px; font-size: var(--fs-14); }

  .theme-toggle {
    width: 44px; height: 44px; display: grid; place-items: center;
    border: 1px solid var(--border); border-radius: 999px;
    color: var(--text-primary);
    transition: border-color var(--dur-micro) var(--ease-out), transform var(--dur-micro) var(--ease-out);
  }
  .theme-toggle:hover { border-color: var(--accent-primary); }
  .theme-toggle:active { transform: scale(.92); }
  .theme-toggle svg { width: 20px; height: 20px; }
  [data-theme="dark"] .theme-toggle .icon-sun,
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: none; }
  [data-theme="light"] .theme-toggle .icon-moon { display: none; }
  @media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]):not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
    :root:not([data-theme="dark"]):not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  }

  .nav-toggle {
    width: 44px; height: 44px; display: grid; place-items: center;
    border: 1px solid var(--border); border-radius: var(--radius-sm);
  }
  .nav-toggle svg { width: 22px; height: 22px; }
  @media (min-width: 1024px) { .nav-toggle { display: none; } }

  .mobile-nav {
    position: fixed; inset: 0; z-index: 150;
    background: var(--bg-primary);
    display: flex; flex-direction: column;
    padding: var(--space-6) var(--space-4);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transform: translateX(100%);
    transition: transform var(--dur-base) var(--ease-out);
  }
  .mobile-nav[data-open="true"] { transform: translateX(0); }

  .mobile-nav__row { display: flex; align-items: stretch; border-bottom: 1px solid var(--border); }
  .mobile-nav__row .mobile-nav__link { flex: 1; border-bottom: none; }
  .mobile-nav__caret {
    width: 44px; flex-shrink: 0;
    display: grid; place-items: center;
    color: var(--text-secondary);
  }
  .mobile-nav__caret svg { width: 20px; height: 20px; transition: transform var(--dur-micro) var(--ease-out); }
  .mobile-nav__item--dropdown[data-submenu-open="true"] .mobile-nav__caret svg { transform: rotate(180deg); }
  .mobile-nav__sublist { display: none; }
  .mobile-nav__item--dropdown[data-submenu-open="true"] .mobile-nav__sublist { display: block; }
  .mobile-nav__top { display: flex; justify-content: flex-end; margin-bottom: var(--space-8); }
  .mobile-nav__list { display: flex; flex-direction: column; gap: var(--space-2); }
  .mobile-nav__link {
    font-family: var(--font-display); font-size: var(--fs-24); font-weight: 700;
    padding-block: var(--space-3); border-bottom: 1px solid var(--border);
    min-height: 44px; display: flex; align-items: center;
  }
  @media (min-width: 1024px) { .mobile-nav, .nav-toggle { display: none; } }

  /* ---- buttons ---- */
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
    min-height: 44px; padding: .75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 700; font-size: var(--fs-14);
    white-space: nowrap;
    transition: transform var(--dur-micro) var(--ease-out), box-shadow var(--dur-micro) var(--ease-out), filter var(--dur-micro) var(--ease-out);
  }
  .btn-primary {
    background: var(--accent-gradient); color: #0A0A0A;
  }
  .btn-primary:hover { filter: brightness(1.08); box-shadow: 0 8px 24px -8px hsl(30 90% 50% / .55); transform: translateY(-1px); }
  .btn-outline {
    border: 1.5px solid var(--border); color: var(--text-primary);
  }
  .btn-outline:hover { border-color: var(--accent-primary); }
  .btn-chevron::after { content: "\00BB"; }

  /* ---- chevron decoration ---- */
  .chevrons {
    display: flex; gap: 2px; color: var(--accent-primary);
    font-family: var(--font-display); font-weight: 800;
    letter-spacing: -.1em;
    user-select: none;
  }
  .chevrons--sep { margin-block: var(--space-8); justify-content: center; opacity: .8; }

  /* ---- diagonal gradient band ---- */
  .diag-band {
    position: relative;
    height: clamp(60px, 10vw, 140px);
    background: var(--accent-gradient);
    clip-path: polygon(0 40%, 100% 0%, 100% 100%, 0% 100%);
  }

  /* ---- hero ---- */
  .hero {
    position: relative;
    min-height: min(92vh, 900px);
    display: flex; align-items: center;
    overflow: clip;
    background: var(--bg-primary);
  }
  .hero__media {
    position: absolute; inset: 0;
    width: 100%; height: 100%; object-fit: cover;
    filter: brightness(.55) saturate(1.05);
  }
  .hero__scrim {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(10,10,10,.35) 0%, rgba(10,10,10,.55) 55%, var(--bg-primary) 100%);
  }
  .hero__content { position: relative; z-index: 2; padding-block: var(--space-24); }
  .hero__eyebrow {
    display: inline-flex; align-items: center; gap: var(--space-2);
    color: var(--accent-secondary); font-weight: 700; font-size: var(--fs-14);
    letter-spacing: .08em; text-transform: uppercase; margin-bottom: var(--space-4);
  }
  .hero__title { color: #fff; max-width: 18ch; }
  .hero__title em { font-style: normal; color: var(--accent-primary); }
  .hero__lead { color: #E4E4E4; font-size: var(--fs-18); max-width: 55ch; margin-top: var(--space-4); }
  .hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-8); }
  .hero__band { position: absolute; bottom: 0; left: 0; right: 0; z-index: 2; }

  /* ---- page hero (interior pages) ---- */
  .page-hero {
    position: relative;
    padding-block: calc(var(--space-24) + var(--space-8)) var(--space-16);
    background: var(--bg-surface);
    overflow: clip;
  }
  .page-hero__media { position: absolute; inset: 0; z-index: 0; }
  .page-hero__media img { width: 100%; height: 100%; object-fit: cover; opacity: .28; }
  .page-hero__media::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, transparent 30%, var(--bg-primary) 100%);
  }
  .page-hero__content { position: relative; z-index: 2; }
  .breadcrumbs {
    display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center;
    font-size: var(--fs-12); color: var(--text-secondary); margin-bottom: var(--space-4);
  }
  .breadcrumbs a:hover { color: var(--accent-primary); }
  .breadcrumbs .sep { color: var(--accent-primary); }

  /* ---- bento grid ---- */
  .bento {
    display: grid; gap: var(--space-4);
    grid-template-columns: repeat(2, 1fr);
  }
  @media (min-width: 768px) { .bento { grid-template-columns: repeat(4, 1fr); } }

  .bento-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: clip;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    aspect-ratio: 4/5;
    display: flex; flex-direction: column; justify-content: flex-end;
    transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
  }
  .bento-card img {
    position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
    transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
    opacity: .8;
  }
  .bento-card::before {
    content: ""; position: absolute; inset: 0; z-index: 1;
    background: linear-gradient(180deg, transparent 20%, rgba(10,10,10,.92) 100%);
  }
  .bento-card__body { position: relative; z-index: 2; padding: var(--space-4); }
  .bento-card__icon {
    width: 44px; height: 44px; border-radius: 999px;
    background: var(--accent-gradient);
    display: grid; place-items: center; margin-bottom: var(--space-3);
  }
  .bento-card__icon svg { width: 22px; height: 22px; color: #0A0A0A; }
  .bento-card__title { color: #fff; font-size: var(--fs-16); font-weight: 700; line-height: 1.2; }
  .bento-card:hover { transform: scale(1.03); border-color: var(--accent-primary); box-shadow: 0 12px 32px -12px hsl(30 90% 50% / .45); }
  .bento-card:hover img { transform: scale(1.08); opacity: 1; }
  .bento-card:focus-visible { transform: scale(1.03); }

  /* ---- bento cards as a 4-col carousel (produits hub) ---- */
  .bento-track {
    display: flex; gap: var(--space-4);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--space-4);
    padding-block: var(--space-4);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .bento-track::-webkit-scrollbar { display: none; }
  .bento-track .bento-card {
    flex: 0 0 calc(25% - var(--space-4) * 3 / 4);
    scroll-snap-align: start;
  }
  @media (max-width: 1023px) { .bento-track .bento-card { flex-basis: calc(50% - var(--space-4) / 2); } }
  @media (max-width: 640px) { .bento-track .bento-card { flex-basis: min(240px, 78vw); } }

  /* ---- hex photo frame carousel ---- */
  .carousel { position: relative; padding-inline: var(--space-12); }
  .hex-gallery {
    display: flex; gap: var(--space-6);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--space-4);
    padding-block: var(--space-8);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .hex-gallery::-webkit-scrollbar { display: none; }
  .hex-frame {
    position: relative;
    flex: 0 0 min(260px, 72vw);
    aspect-ratio: 1/1.05;
    scroll-snap-align: start;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background: var(--bg-surface-2);
    overflow: clip;
    transition: transform var(--dur-base) var(--ease-out);
  }
  .hex-frame img { width: 100%; height: 100%; object-fit: cover; }
  .hex-frame:hover { transform: translateY(-6px); }

  /* hex-frame is a <button> when it acts as a lightbox trigger */
  button.hex-frame {
    display: block; width: 100%; padding: 0; border: none;
    font: inherit; text-align: left; cursor: zoom-in;
  }
  button.hex-frame::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(0deg, rgba(10,10,10,.45), transparent 40%);
    opacity: 0; transition: opacity var(--dur-micro) var(--ease-out);
  }
  button.hex-frame:hover::after, button.hex-frame:focus-visible::after { opacity: 1; }

  /* ---- lightbox ---- */
  .lightbox {
    position: fixed; inset: 0; z-index: 300;
    display: none;
    align-items: center; justify-content: center;
    padding: var(--space-8);
  }
  .lightbox[data-open="true"] { display: flex; }
  .lightbox__backdrop {
    position: absolute; inset: 0;
    background: rgba(6,6,6,.92);
  }
  .lightbox__figure {
    position: relative; z-index: 1;
    max-width: min(1000px, 92vw); max-height: 88vh;
    display: flex; flex-direction: column; gap: var(--space-3);
  }
  .lightbox__img {
    max-width: 100%; max-height: 74vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    background: var(--bg-surface);
  }
  .lightbox__caption { color: #E4E4E4; font-size: var(--fs-14); text-align: center; }
  .lightbox__close, .lightbox__nav {
    position: absolute; z-index: 2;
    width: 44px; height: 44px; display: grid; place-items: center;
    border-radius: 999px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.25);
    color: #fff;
    transition: background var(--dur-micro) var(--ease-out), transform var(--dur-micro) var(--ease-out);
  }
  .lightbox__close:hover, .lightbox__nav:hover { background: rgba(255,255,255,.18); }
  .lightbox__close { top: -56px; right: 0; }
  .lightbox__nav--prev { left: -56px; top: 50%; translate: 0 -50%; }
  .lightbox__nav--next { right: -56px; top: 50%; translate: 0 -50%; }
  @media (max-width: 720px) {
    .lightbox__close { top: auto; bottom: calc(100% - 8px); right: 0; }
    .lightbox__nav--prev { left: 0; top: auto; bottom: -56px; translate: 0; }
    .lightbox__nav--next { right: 0; top: auto; bottom: -56px; translate: 0; }
  }

  /* ---- whatsapp floating action button ---- */
  .whatsapp-fab {
    position: fixed; right: var(--space-6); bottom: var(--space-6);
    z-index: 90;
    width: 56px; height: 56px;
    display: grid; place-items: center;
    border-radius: 999px;
    background: #25D366;
    color: #fff;
    box-shadow: 0 10px 28px -8px rgba(0,0,0,.5);
    transition: transform var(--dur-micro) var(--ease-out);
  }
  .whatsapp-fab:hover { transform: scale(1.08); }
  .whatsapp-fab svg { width: 28px; height: 28px; }
  @media (max-width: 640px) {
    .whatsapp-fab { right: var(--space-4); bottom: var(--space-4); width: 50px; height: 50px; }
  }

  /* ---- galaxy ambient canvas ---- */
  .galaxy-canvas { position: absolute; inset: 0; z-index: 1; pointer-events: none; }

  .carousel-btn {
    position: absolute; top: 50%; translate: 0 -50%;
    z-index: 3;
    width: 44px; height: 44px;
    display: grid; place-items: center;
    border-radius: 999px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    font-size: 1.5rem; line-height: 1;
    color: var(--text-primary);
    transition: border-color var(--dur-micro) var(--ease-out), transform var(--dur-micro) var(--ease-out);
  }
  .carousel-btn:hover { border-color: var(--accent-primary); transform: translateY(-50%) scale(1.06); }
  .carousel-btn--prev { left: 0; }
  .carousel-btn--next { right: 0; }
  @media (max-width: 640px) {
    .carousel { padding-inline: var(--space-8); }
    .carousel-btn { width: 36px; height: 36px; }
  }

  /* ---- industry detail row (industries page) ---- */
  .industry-row {
    display: grid; gap: var(--space-6);
    grid-template-columns: 1fr;
    align-items: center;
  }
  @media (min-width: 768px) { .industry-row { grid-template-columns: 1fr 2fr; } }

  /* ---- industries cards ---- */
  .industry-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-6);
    transition: border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
  }
  .industry-card:hover { border-color: var(--accent-primary); transform: translateY(-4px); }
  .industry-card__icon {
    width: 56px; height: 56px;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background: var(--bg-surface-2);
    display: grid; place-items: center; margin-bottom: var(--space-4);
    border: 1px solid var(--border);
  }
  .industry-card__icon svg { width: 26px; height: 26px; color: var(--accent-primary); }

  /* ---- timeline ---- */
  .timeline {
    display: grid; gap: var(--space-8);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    position: relative;
  }
  .timeline-item { position: relative; padding-top: var(--space-8); }
  .timeline-item::before {
    content: ""; position: absolute; top: 0; left: 0;
    width: 44px; height: 3px; background: var(--accent-gradient); border-radius: 2px;
  }
  .timeline-item__year {
    font-family: var(--font-display); font-weight: 800; font-size: var(--fs-32);
    color: var(--accent-primary); display: block; margin-bottom: var(--space-2);
  }

  /* ---- team ---- */
  .team-card {
    background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: var(--space-6); text-align: center;
  }
  .team-card__avatar {
    width: 96px; height: 96px; margin-inline: auto var(--space-4);
    border-radius: 999px; background: var(--accent-gradient);
    display: grid; place-items: center;
  }
  .team-card__avatar span { font-family: var(--font-display); font-size: var(--fs-24); font-weight: 800; color: #0A0A0A; }
  .team-card__role { color: var(--accent-primary); font-size: var(--fs-14); font-weight: 700; margin-top: var(--space-1); }

  /* ---- clients strip ---- */
  .clients-strip {
    display: grid; gap: var(--space-6);
    grid-template-columns: repeat(2, 1fr);
    align-items: center;
  }
  @media (min-width: 768px) { .clients-strip { grid-template-columns: repeat(4, 1fr); } }
  @media (min-width: 1024px) { .clients-strip { grid-template-columns: repeat(6, 1fr); } }
  .clients-strip__logo {
    display: flex; align-items: center; justify-content: center;
    padding: var(--space-4);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    min-height: 88px;
  }
  .clients-strip__logo img {
    max-height: 40px; width: auto;
    filter: grayscale(1) opacity(.55);
    transition: filter var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
  }
  .clients-strip__logo:hover img { filter: grayscale(0) opacity(1); transform: scale(1.06); }
  .clients-strip__badge {
    font-weight: 700; font-size: var(--fs-14); color: var(--text-secondary);
    text-align: center; letter-spacing: .02em;
  }

  /* ---- datasheet card (title + intro paragraph, product pages) ---- */
  .datasheet-card {
    max-width: 760px;
    margin-inline: auto;
    text-align: center;
  }
  .datasheet-card p { max-width: none; margin-inline: auto; text-align: left; }
  .datasheet-card p:only-of-type { text-align: center; }

  /* ---- use-case stat card (product pages) ---- */
  .usecase-card {
    max-width: 720px;
    margin-inline: auto;
    text-align: center;
  }
  .usecase-card__counter {
    display: block;
    font-family: var(--font-display); font-weight: 800;
    font-size: clamp(3rem, 6vw + 1rem, 5rem);
    line-height: 1;
    background: var(--accent-gradient);
    -webkit-background-clip: text; background-clip: text; color: transparent;
  }
  .usecase-card__label {
    display: block;
    font-size: var(--fs-14); font-weight: 700;
    letter-spacing: .04em; text-transform: uppercase;
    color: var(--text-secondary);
    margin-top: var(--space-2);
  }
  .usecase-list {
    display: grid; gap: var(--space-4);
    grid-template-columns: repeat(2, 1fr);
    text-align: left;
  }
  @media (max-width: 640px) { .usecase-list { grid-template-columns: 1fr; } }
  .usecase-list li {
    display: flex; align-items: flex-start; gap: var(--space-2);
    color: var(--text-secondary);
  }
  .usecase-list__icon {
    width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px;
    color: var(--accent-primary);
  }

  /* ---- process steps ---- */
  .process-step {
    display: grid; grid-template-columns: auto 1fr; gap: var(--space-4);
    padding-block: var(--space-6);
    border-bottom: 1px solid var(--border);
  }
  .process-step__num {
    font-family: var(--font-display); font-weight: 800; font-size: var(--fs-32);
    color: var(--accent-primary); line-height: 1;
  }

  /* ---- cards generic ---- */
  .card {
    background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: var(--space-6);
  }

  .notice-card {
    text-align: center; padding: var(--space-10) var(--space-8);
    border: 2px solid transparent; border-radius: var(--radius-lg);
    background:
      linear-gradient(var(--bg-surface), var(--bg-surface)) padding-box,
      var(--accent-gradient) border-box;
  }
  .notice-card__icon {
    width: 56px; height: 56px; margin-inline: auto; margin-bottom: var(--space-4);
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%; background: var(--accent-gradient);
  }
  .notice-card__icon svg { width: 30px; height: 30px; color: #0A0A0A; }
  .notice-card h3 {
    font-size: var(--fs-24); margin-bottom: var(--space-3);
  }
  .notice-card p {
    font-size: var(--fs-18); color: var(--text-secondary);
    max-width: 68ch; margin-inline: auto;
  }
  .notice-card p + p { margin-top: var(--space-3); }

  .data-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-md); }
  .data-table { width: 100%; border-collapse: collapse; min-width: 640px; font-size: var(--fs-14); }
  .data-table th, .data-table td { padding: var(--space-3) var(--space-4); text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
  .data-table thead th { background: var(--bg-surface); font-weight: 700; color: var(--text-primary); }
  .data-table tbody tr:last-child td { border-bottom: none; }
  .data-table tbody tr:hover { background: var(--bg-surface); }
  .data-table td:first-child, .data-table th:first-child { font-weight: 700; color: var(--accent-primary); width: 40px; }

  .field--honeypot {
    position: absolute; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; left: -9999px;
  }

  /* ---- footer ---- */
  .site-footer { background: var(--bg-surface); border-top: 1px solid var(--border); }
  .footer-grid {
    display: grid; gap: var(--space-8);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    padding-block: var(--space-16);
  }
  .footer-heading { font-size: var(--fs-14); font-weight: 700; margin-bottom: var(--space-4); color: var(--text-primary); }
  .footer-link { color: var(--text-secondary); display: block; padding-block: var(--space-1); min-height: 32px; }
  .footer-link:hover { color: var(--accent-primary); }
  .footer-bottom {
    border-top: 1px solid var(--border);
    padding-block: var(--space-6);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2);
    align-items: center;
    text-align: center;
    font-size: var(--fs-12); color: var(--text-secondary);
  }
  @media (min-width: 640px) {
    .footer-bottom {
      grid-template-columns: 1fr auto 1fr;
      gap: var(--space-4);
    }
    .footer-bottom span:first-child { text-align: left; }
    .footer-bottom span:last-child { text-align: right; }
  }
  .social-links { display: flex; gap: var(--space-3); }
  .social-links a {
    width: 40px; height: 40px; display: grid; place-items: center;
    border: 1px solid var(--border); border-radius: 999px;
  }
  .social-links a:hover { border-color: var(--accent-primary); color: var(--accent-primary); }
  .social-links svg { width: 18px; height: 18px; }

  /* ---- reveal on scroll ---- */
  [data-reveal] {
    opacity: 0; transform: translateY(24px);
    transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
  }
  [data-reveal].is-visible { opacity: 1; transform: none; }
  @media (prefers-reduced-motion: reduce) {
    [data-reveal] { opacity: 1; transform: none; transition: none; }
  }

  /* ---- forms ---- */
  .field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
  .field label { font-size: var(--fs-14); font-weight: 600; }
  .field input, .field textarea, .field select {
    background: var(--bg-surface); border: 1.5px solid var(--border);
    border-radius: var(--radius-sm); padding: .75rem 1rem; min-height: 44px;
    color: var(--text-primary);
    transition: border-color var(--dur-micro) var(--ease-out);
  }
  .field textarea { min-height: 140px; resize: vertical; }
  .field input:focus, .field textarea:focus, .field select:focus { border-color: var(--accent-primary); }
  .field-error { color: var(--accent-primary); font-size: var(--fs-12); display: none; }
  .field[data-invalid="true"] input,
  .field[data-invalid="true"] textarea { border-color: #e5484d; }
  .field[data-invalid="true"] .field-error { display: block; }
  .form-status { padding: var(--space-4); border-radius: var(--radius-sm); margin-bottom: var(--space-4); display: none; }
  .form-status[data-visible="true"] { display: block; }
  .form-status--ok { background: color-mix(in srgb, #2ecc71 20%, transparent); border: 1px solid #2ecc71; }

  /* ---- badges / tags ---- */
  .badge {
    display: inline-flex; align-items: center; gap: var(--space-1);
    padding: .35rem .75rem; border-radius: 999px; font-size: var(--fs-12); font-weight: 700;
    background: var(--bg-surface-2); border: 1px solid var(--border); color: var(--text-secondary);
  }

  .eyebrow {
    color: var(--accent-primary); font-weight: 700; font-size: var(--fs-14);
    letter-spacing: .08em; text-transform: uppercase; display: block; margin-bottom: var(--space-2);
  }
}

/* ---------------------------------- utilities ---------------------------------- */
@layer utilities {
  .text-center { text-align: center; }
  .mx-auto { margin-inline: auto; }
  .mt-2 { margin-top: var(--space-2); }
  .mt-4 { margin-top: var(--space-4); }
  .mt-8 { margin-top: var(--space-8); }
  .mt-12 { margin-top: var(--space-12); }
  .mb-4 { margin-bottom: var(--space-4); }
  .mb-8 { margin-bottom: var(--space-8); }
  .max-w-prose { max-width: 65ch; }
  .max-w-content { max-width: 900px; }
  .text-secondary { color: var(--text-secondary); }
  .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;
  }
  .flow-gap-2 > * + * { margin-top: var(--space-2); }
  .flow-gap-4 > * + * { margin-top: var(--space-4); }
}