/* ==========================================================
       DESIGN TOKENS — Charte Triphase Énergie
       ========================================================== */
    :root {
      /* Palette */
      --c-navy:       #0a2c5c;
      --c-blue:       #045da3;
      --c-blue-hover: #035da2;
      --c-gold:       #c19a2f;
      --c-gold-hover: #a8851f;
      --c-teal:       #07a2a8;
      --c-teal-soft:  #e8f6f6;
      --c-gold-soft:  #faf3e2;
      --c-blue-soft:  #e6eff8;

      --c-text:       #333333;
      --c-text-mute:  #666666;
      --c-bg:         #ffffff;
      --c-bg-soft:    #f5f5f5;
      --c-error:      #d32f2f;

      /* Typographie */
      --ff-display: 'Montserrat', system-ui, -apple-system, sans-serif;
      --ff-body:    'Open Sans', system-ui, -apple-system, sans-serif;

      /* Espacements (grille 8pt) */
      --s-1: 4px; --s-2: 8px; --s-3: 16px; --s-4: 24px;
      --s-5: 32px; --s-6: 48px; --s-7: 64px; --s-8: 96px;

      /* Rayons */
      --r-sm: 4px; --r-md: 6px; --r-pill: 999px;

      /* Ombres (teintées navy pour cohérence) */
      --shadow-sm: 0 1px 3px rgba(10, 44, 92, 0.06);
      --shadow-md: 0 6px 20px rgba(10, 44, 92, 0.08);
      --shadow-lg: 0 16px 48px rgba(10, 44, 92, 0.12);

      /* Transitions */
      --ease: cubic-bezier(0.2, 0, 0, 1);

      /* Largeur de contenu */
      --w-max: 1180px;
    }

    /* ==========================================================
       RESET & BASE
       ========================================================== */
    *, *::before, *::after { box-sizing: border-box; }
    * { margin: 0; padding: 0; }

    html { scroll-behavior: smooth; }

    /* Focus clavier — accessibilité */
    :focus:not(:focus-visible) { outline: none; }
    :focus-visible {
      outline: 2px solid var(--c-blue);
      outline-offset: 3px;
      border-radius: var(--r-sm);
    }
    .hero :focus-visible,
    .arretsurwatt :focus-visible,
    .final-cta :focus-visible,
    .site-footer :focus-visible {
      outline-color: var(--c-gold);
    }

    body {
      font-family: var(--ff-body);
      font-size: 16px;
      line-height: 1.65;
      color: var(--c-text);
      background: var(--c-bg);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    img, svg { display: block; max-width: 100%; }

    a { color: var(--c-blue); text-decoration: none; transition: color .2s var(--ease); }
    a:hover { color: var(--c-blue-hover); }

    h1, h2, h3, h4 {
      font-family: var(--ff-display);
      color: var(--c-navy);
      line-height: 1.2;
      letter-spacing: -0.01em;
    }

    .container {
      max-width: var(--w-max);
      margin: 0 auto;
      padding: 0 var(--s-4);
    }

    /* ==========================================================
       LOGO TRIPHASE — placeholders
       Coller vos paths SVG dans les emplacements signalés.
       ========================================================== */
    .triphase-logo svg { display: block; width: 100%; height: auto; }

    @keyframes triphase-flow {
      from { transform: translateX(0); }
      to   { transform: translateX(-130px); }
    }
    .triphase-logo #wave-or   { animation: triphase-flow 12s linear infinite; }
    .triphase-logo #wave-bleu { animation: triphase-flow 15s linear infinite; }
    .triphase-logo #wave-vert { animation: triphase-flow 18s linear infinite; }

    @media (prefers-reduced-motion: reduce) {
      .triphase-logo #wave-or,
      .triphase-logo #wave-bleu,
      .triphase-logo #wave-vert { animation: none; }
    }

    /* Variante nav : logo masqué dans un cercle */
    .triphase-logo--nav {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      overflow: hidden;
      background: var(--c-navy);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .triphase-logo--nav svg {
	width: 200px;
	max-width: none;
	height: auto;
	flex-shrink: 0;
	transform: translateX(-35px);
    }
    /* Variante footer : logo étendu */
    .triphase-logo--footer {
      width: 100%;
      max-width: 360px;
    }

    /* ==========================================================
       HEADER
       ========================================================== */
    .site-header {
      position: fixed;
      top: 0; left: 0; right: 0;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(10, 44, 92, 0.08);
      z-index: 100;
      transition: box-shadow .3s var(--ease);
    }
    .site-header.scrolled { box-shadow: var(--shadow-sm); }

    .site-header__inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 0;
      gap: var(--s-5);
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .brand__name {
      font-family: var(--ff-display);
      font-weight: 700;
      font-size: 18px;
      color: var(--c-navy);
      letter-spacing: -0.01em;
      line-height: 1;
    }
    .brand__name span { color: var(--c-gold); font-weight: 600; }

    .site-nav ul {
      display: flex;
      gap: var(--s-5);
      list-style: none;
    }
    .site-nav a {
      font-family: var(--ff-display);
      font-weight: 500;
      font-size: 14.5px;
      color: var(--c-navy);
      position: relative;
      padding: 6px 0;
    }
    .site-nav a::after {
      content: '';
      position: absolute;
      left: 0; bottom: 0;
      width: 100%;
      height: 1.5px;
      background: var(--c-blue-hover);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .3s var(--ease);
    }
    .site-nav a:hover::after { transform: scaleX(1); }

    /* ==========================================================
       BUTTONS
       ========================================================== */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 26px;
      font-family: var(--ff-display);
      font-weight: 600;
      font-size: 15px;
      letter-spacing: 0.01em;
      border-radius: var(--r-sm);
      border: 1.5px solid transparent;
      cursor: pointer;
      transition: all .2s var(--ease);
      text-decoration: none;
      line-height: 1;
    }
    .btn--gold {
      background: var(--c-gold);
      color: #fff;
    }
    .btn--gold:hover {
      background: var(--c-gold-hover);
      color: #fff;
      transform: translateY(-1px);
      box-shadow: var(--shadow-md);
    }
    .btn--navy {
      background: var(--c-navy);
      color: #fff;
    }
    .btn--navy:hover {
      background: #061f43;
      color: #fff;
      transform: translateY(-1px);
    }
    .btn--ghost {
      background: transparent;
      color: var(--c-navy);
      border-color: var(--c-navy);
    }
    .btn--ghost:hover {
      background: var(--c-navy);
      color: #fff;
    }
    .btn--ghost-light {
      background: transparent;
      color: #fff;
      border-color: rgba(255, 255, 255, 0.6);
    }
    .btn--ghost-light:hover {
      background: #fff;
      color: var(--c-navy);
    }
    .btn--sm {
      padding: 10px 18px;
      font-size: 13.5px;
    }
    .btn .arrow { transition: transform .2s var(--ease); }
    .btn:hover .arrow { transform: translateX(3px); }

    /* ==========================================================
       HERO
       ========================================================== */
    .hero {
      position: relative;
      padding: 180px 0 var(--s-8);
      background:
        radial-gradient(ellipse at 78% 8%, rgba(10, 44, 92, 0.18) 0%, transparent 52%),
        linear-gradient(135deg, #9e7618 0%, var(--c-gold) 48%, #cda535 100%);
      color: #fff;
      overflow: hidden;
    }

    .hero__inner {
      position: relative;
      z-index: 2;
      max-width: 920px;
    }

    .hero__eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-family: var(--ff-display);
      font-weight: 600;
      font-size: 13px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--c-navy);
      margin-bottom: var(--s-4);
      opacity: 0;
      animation: fadeUp .6s var(--ease) .1s forwards;
    }
    .hero__eyebrow::before {
      content: '';
      width: 24px; height: 1.5px;
      background: var(--c-blue-hover);
    }

    .hero h1 {
      color: #fff;
      font-weight: 700;
      font-size: clamp(36px, 5vw, 56px);
      letter-spacing: -0.02em;
      line-height: 1.08;
      margin-bottom: var(--s-4);
      opacity: 0;
      animation: fadeUp .8s var(--ease) .2s forwards;
    }
    .hero h1 em {
      font-style: normal;
      color: var(--c-navy);
      position: relative;
    }

    .hero__lead {
      font-size: clamp(17px, 1.6vw, 19px);
      line-height: 1.55;
      max-width: 680px;
      color: rgb(255, 255, 255);
      margin-bottom: var(--s-6);
      opacity: 0;
      animation: fadeUp .8s var(--ease) .35s forwards;
    }

    .hero__cta {
      display: flex;
      gap: var(--s-3);
      flex-wrap: wrap;
      opacity: 0;
      animation: fadeUp .8s var(--ease) .5s forwards;
    }

    /* Onde décorative dans le hero — en bas */
    .hero__wave {
      position: absolute;
      left: 0; right: 0; bottom: -1px;
      width: 100%;
      height: 80px;
      pointer-events: none;
      z-index: 1;
    }

    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(20px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    /* ==========================================================
       SECTION HEADER (commun)
       ========================================================== */
    .section {
      padding: var(--s-8) 0;
    }
    .section--soft { background: var(--c-bg-soft); }

    .section__eyebrow {
      font-family: var(--ff-display);
      font-weight: 600;
      font-size: 12.5px;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--c-blue);
      margin-bottom: 12px;
    }
    .section__title {
      font-size: clamp(28px, 3vw, 36px);
      font-weight: 700;
      margin-bottom: var(--s-5);
      letter-spacing: -0.015em;
    }
    .section__intro {
      max-width: 720px;
      color: var(--c-text-mute);
      font-size: 17px;
      margin-bottom: var(--s-7);
    }

    /* ==========================================================
       LES 3 PILIERS
       ========================================================== */
    .pillars {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--s-4);
    }
    @media (max-width: 900px) {
      .pillars { grid-template-columns: 1fr; }
    }

    .pillar {
      background: #fff;
      border: 1px solid rgba(10, 44, 92, 0.08);
      border-radius: var(--r-md);
      padding: var(--s-5);
      position: relative;
      overflow: hidden;
      transition: all .3s var(--ease);
    }
    .pillar::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
      background: var(--pillar-color, var(--c-blue));
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .4s var(--ease);
    }
    .pillar:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: transparent;
    }
    .pillar:hover::before { transform: scaleX(1); }

    .pillar--gold { --pillar-color: var(--c-gold); }
    .pillar--blue { --pillar-color: var(--c-blue); }
    .pillar--teal { --pillar-color: var(--c-teal); }

    .pillar__icon {
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--pillar-bg, var(--c-blue-soft));
      border-radius: var(--r-sm);
      margin-bottom: var(--s-4);
    }
    .pillar__icon svg { width: 26px; height: 26px; }
    .pillar--gold .pillar__icon { background: var(--c-gold-soft); }
    .pillar--gold .pillar__icon svg { color: var(--c-gold); }
    .pillar--blue .pillar__icon { background: var(--c-blue-soft); }
    .pillar--blue .pillar__icon svg { color: var(--c-blue); }
    .pillar--teal .pillar__icon { background: var(--c-teal-soft); }
    .pillar--teal .pillar__icon svg { color: var(--c-teal); }

    .pillar__title {
      font-family: var(--ff-display);
      font-size: 22px;
      font-weight: 600;
      color: var(--c-navy);
      margin-bottom: var(--s-2);
    }
    .pillar__desc {
      color: var(--c-text);
      font-size: 15.5px;
      line-height: 1.6;
      margin-bottom: var(--s-4);
    }
    .pillar__link {
      font-family: var(--ff-display);
      font-weight: 600;
      font-size: 14px;
      color: var(--pillar-color, var(--c-blue));
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: gap .2s var(--ease);
    }
    .pillar__link:hover {
      color: var(--pillar-color, var(--c-blue));
      gap: 12px;
    }

    /* ==========================================================
       SECTIONS DÉTAILLÉES (alternées)
       ========================================================== */
    .detail {
      padding: var(--s-8) 0;
    }
    .detail__grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--s-8);
      align-items: center;
    }
    @media (max-width: 900px) {
      .detail__grid { grid-template-columns: 1fr; gap: var(--s-6); direction: ltr; }
    }

    .detail__eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-family: var(--ff-display);
      font-weight: 600;
      font-size: 12.5px;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--accent, var(--c-blue));
      margin-bottom: var(--s-3);
    }
    .detail__eyebrow::before {
      content: '';
      width: 28px; height: 2px;
      background: var(--accent, var(--c-blue));
    }

    .detail__title {
      font-size: clamp(26px, 2.8vw, 34px);
      font-weight: 700;
      margin-bottom: var(--s-4);
      line-height: 1.15;
    }
    .detail__title em {
      font-style: normal;
      color: var(--accent, var(--c-blue));
    }
    .detail__content p {
      color: var(--c-text);
      margin-bottom: var(--s-3);
      font-size: 16.5px;
    }
    .detail__content h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--c-navy);
      margin: var(--s-5) 0 var(--s-3);
    }
    .detail__content ul,
    .detail__content ol {
      margin: var(--s-3) 0 var(--s-4) var(--s-4);
      padding-left: 4px;
    }
    .detail__content li {
      margin-bottom: 10px;
      font-size: 16px;
    }
    .detail__content li strong { color: var(--c-navy); }
    .detail__content strong { color: var(--c-navy); font-weight: 600; }

    /* Section accentuée par couleur */
    .detail--gold { --accent: var(--c-gold); }
    .detail--blue { --accent: var(--c-blue); }
    .detail--teal { --accent: var(--c-teal); }

    /* Image media : on garde un fallback élégant si pas d'image */
    .detail__media {
      position: relative;
    }
    .detail__media img {
      border-radius: var(--r-md);
      box-shadow: var(--shadow-lg);
      width: 100%;
      height: auto;
    }
    .detail__media-fallback {
      aspect-ratio: 4 / 3;
      background: linear-gradient(135deg, var(--accent, var(--c-blue)) 0%, var(--c-navy) 100%);
      border-radius: var(--r-md);
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .detail__media-fallback::after {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.15) 0%, transparent 50%);
    }
    .detail__media-fallback svg {
      width: 40%;
      max-width: 200px;
      opacity: 0.85;
      color: #fff;
      position: relative;
      z-index: 1;
    }
    .media-symbol {
      font-family: var(--ff-display);
      font-size: clamp(80px, 12vw, 140px);
      font-weight: 700;
      color: #fff;
      opacity: 0.85;
      line-height: 1;
      position: relative;
      z-index: 1;
      user-select: none;
    }

    /* ==========================================================
       STATS (chiffres-clés)
       ========================================================== */
    .stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--s-3);
      margin: var(--s-5) 0 var(--s-4);
    }
    .stats--2 { grid-template-columns: repeat(2, 1fr); }
    @media (max-width: 600px) {
      .stats, .stats--2 { grid-template-columns: 1fr; }
    }

    .stat {
      padding: var(--s-4);
      background: #fff;
      border-radius: var(--r-md);
      border-left: 3px solid var(--accent, var(--c-blue));
      box-shadow: var(--shadow-sm);
    }
    .stat__num {
      font-family: var(--ff-display);
      font-weight: 700;
      font-size: 32px;
      color: var(--accent, var(--c-blue));
      line-height: 1;
      letter-spacing: -0.02em;
      font-variant-numeric: tabular-nums;
    }
    .stat__label {
      margin-top: 8px;
      font-size: 13.5px;
      color: var(--c-text-mute);
      line-height: 1.4;
    }

    /* ==========================================================
       ARRÊTSURWATT — section produit
       ========================================================== */
    .arretsurwatt {
      padding: var(--s-8) 0;
      background: var(--c-navy);
      color: #fff;
      position: relative;
      overflow: hidden;
    }
    .arretsurwatt::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--c-gold), transparent);
    }
    .arretsurwatt__inner {
      max-width: 980px;
      margin: 0 auto;
      text-align: center;
    }
    .arretsurwatt__badge {
      display: inline-block;
      padding: 6px 14px;
      background: rgba(193, 154, 47, 0.15);
      border: 1px solid rgba(193, 154, 47, 0.35);
      color: var(--c-gold);
      font-family: var(--ff-display);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      border-radius: var(--r-pill);
      margin-bottom: var(--s-4);
    }
    .arretsurwatt h2 {
      color: #fff;
      font-size: clamp(28px, 3.2vw, 40px);
      letter-spacing: -0.02em;
      margin-bottom: var(--s-3);
    }
    .arretsurwatt h2 em {
      font-style: normal;
      color: var(--c-gold);
    }
    .arretsurwatt__lead {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.8);
      max-width: 720px;
      margin: 0 auto var(--s-6);
    }
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--s-3);
      margin-bottom: var(--s-6);
      text-align: left;
    }
    @media (max-width: 800px) {
      .feature-grid { grid-template-columns: 1fr; }
    }
    .feature {
      padding: var(--s-4);
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--r-md);
      transition: all .3s var(--ease);
    }
    .feature:hover {
      background: rgba(255, 255, 255, 0.07);
      border-color: rgba(193, 154, 47, 0.4);
    }
    .feature__icon {
      width: 36px; height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(193, 154, 47, 0.15);
      border-radius: var(--r-sm);
      margin-bottom: var(--s-3);
      color: var(--c-gold);
    }
    .feature__icon svg { width: 20px; height: 20px; }
    .feature h4 {
      color: #fff;
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 6px;
    }
    .feature p {
      color: rgba(255, 255, 255, 0.75);
      font-size: 14.5px;
      line-height: 1.55;
    }

    /* ==========================================================
       CTA FINAL
       ========================================================== */
    .final-cta {
      padding: var(--s-8) 0;
      background: var(--c-teal);
      color: #fff;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .final-cta::before {
      content: '';
      position: absolute;
      inset: 0;
      background: 
        radial-gradient(circle at 20% 40%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 60%, rgba(10,44,92,0.18) 0%, transparent 50%);
    }
    .final-cta__inner { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; }
    .final-cta h2 {
      color: #fff;
      font-size: clamp(26px, 3vw, 36px);
      letter-spacing: -0.015em;
      margin-bottom: var(--s-3);
    }
    .final-cta p {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.92);
      margin-bottom: var(--s-5);
    }
    .final-cta__buttons {
      display: flex;
      gap: var(--s-3);
      justify-content: center;
      flex-wrap: wrap;
    }
    .final-cta .btn--navy { background: var(--c-navy); }
    .final-cta .btn--navy:hover { background: #061f43; }

    /* ==========================================================
       FOOTER
       ========================================================== */
    .site-footer {
      background: var(--c-navy);
      color: rgba(255, 255, 255, 0.75);
      padding: var(--s-8) 0 var(--s-4);
      position: relative;
    }
    .site-footer::before {
      /* Onde décorative en haut du footer */
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(193, 154, 47, 0.5), rgba(7, 162, 168, 0.5), transparent);
    }
    .site-footer__grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: var(--s-6);
      padding-bottom: var(--s-6);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    @media (max-width: 800px) {
      .site-footer__grid { grid-template-columns: 1fr; gap: var(--s-5); }
    }

    .site-footer h4 {
      font-family: var(--ff-display);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--c-gold);
      margin-bottom: var(--s-3);
    }
    .site-footer p, .site-footer li {
      font-size: 14.5px;
      line-height: 1.7;
    }
    .site-footer__tagline {
      margin: var(--s-3) 0 0;
      max-width: 320px;
    }
    .site-footer ul {
      list-style: none;
    }
    .site-footer ul li { margin-bottom: 8px; }
    .site-footer a {
      color: rgba(255, 255, 255, 0.75);
      transition: color .2s var(--ease);
    }
    .site-footer a:hover { color: var(--c-gold); }
    .site-footer__contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .site-footer__contact-item svg {
      width: 14px; height: 14px;
      color: var(--c-gold);
      flex-shrink: 0;
    }
    .site-footer__bottom {
      padding-top: var(--s-4);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: var(--s-3);
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
    }
    .site-footer__legal-links { display: flex; gap: var(--s-4); }
    .site-footer__legal-links a { color: rgba(255, 255, 255, 0.5); }
    .site-footer__legal-links a:hover { color: var(--c-gold); }

    /* ==========================================================
       UTILS
       ========================================================== */
    .text-gold { color: var(--c-gold); }
    .text-blue { color: var(--c-blue); }
    .text-teal { color: var(--c-teal); }

    /* Apparition au scroll */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity .7s var(--ease), transform .7s var(--ease);
    }
    .reveal.is-visible {
      opacity: 1;
      transform: translateY(0);
    }

    @media (prefers-reduced-motion: reduce) {
      .reveal { opacity: 1; transform: none; transition: none; }
      [class*="animation"] { animation: none !important; }
    }

    /* ==========================================================
       BURGER — bouton + menu mobile
       ========================================================== */
    .nav-toggle {
      display: none;
      flex-direction: column;
      justify-content: space-between;
      width: 28px;
      height: 20px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 0;
      flex-shrink: 0;
    }
    .nav-toggle span {
      display: block;
      width: 100%;
      height: 2px;
      background: var(--c-navy);
      border-radius: 2px;
      transition: transform .3s var(--ease), opacity .3s var(--ease);
    }
    .nav-toggle[aria-expanded="true"] span:nth-child(1) {
      transform: translateY(9px) rotate(45deg);
    }
    .nav-toggle[aria-expanded="true"] span:nth-child(2) {
      opacity: 0;
      transform: scaleX(0);
    }
    .nav-toggle[aria-expanded="true"] span:nth-child(3) {
      transform: translateY(-9px) rotate(-45deg);
    }

    .mobile-nav {
      display: none;
      flex-direction: column;
      gap: var(--s-2);
      padding: var(--s-3) var(--s-4) var(--s-5);
      background: rgba(255, 255, 255, 0.97);
      border-top: 1px solid rgba(10, 44, 92, 0.08);
    }
    .mobile-nav.is-open { display: flex; }
    .mobile-nav ul { list-style: none; }
    .mobile-nav li { border-bottom: 1px solid rgba(10, 44, 92, 0.06); }
    .mobile-nav a:not(.btn) {
      display: block;
      padding: 12px 0;
      font-family: var(--ff-display);
      font-weight: 500;
      font-size: 16px;
      color: var(--c-navy);
    }
    .mobile-nav .btn {
      align-self: flex-start;
      margin-top: var(--s-3);
    }

    /* ==========================================================
       RESPONSIVE — header mobile
       ========================================================== */
    @media (max-width: 800px) {
      .site-nav { display: none; }
      .btn--sm { display: none; }
      .nav-toggle { display: flex; }
      .hero { padding-top: 130px; }
      .detail__media { display: none; }
    }