:root {
      --gd-night: #0A1024; --gd-night-2: #060A1B;
      --gd-blue: #1E3A5F; --gd-blue-soft: #E8ECF5;
      --gd-action: #4A6FE8; --gd-action-light: #6A6AF4; --gd-action-glow: rgba(106,106,244,0.5);
      --gd-ink: #0B1220; --gd-ink-soft: #3B4766;
      --gd-paper: #FFFFFF; --gd-canvas: #F6F7FB;
      --gd-line: #E6E9F2; --gd-muted: #6B7591;
      --gd-sans: 'Inter', system-ui, -apple-system, sans-serif;
      --gd-mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body, h1, h2, h3, p, figure, ul, ol { margin: 0; padding: 0; }
    ul, ol { list-style: none; }
    body {
      font-family: var(--gd-sans); color: var(--gd-ink); background: var(--gd-paper);
      line-height: 1.55; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
    }
    a { color: inherit; text-decoration: none; }
    img, svg { display: block; max-width: 100%; }
    ::selection { background: var(--gd-action); color: #fff; }
    :focus-visible { outline: 2px solid var(--gd-action-light); outline-offset: 3px; border-radius: 4px; }

    .gd-eyebrow {
      font-family: var(--gd-mono); font-size: 12px; color: var(--gd-action);
      letter-spacing: 0.14em; text-transform: uppercase;
    }
    .gd-h1 {
      font-family: var(--gd-sans); font-size: clamp(40px, 5.4vw, 68px);
      font-weight: 500; letter-spacing: -0.035em; line-height: 1.04;
      color: #fff; max-width: 780px;
    }
    .gd-h1--dark { color: var(--gd-ink); }
    .gd-h1__accent {
      background: linear-gradient(135deg, #9696FF 0%, #6A6AF4 100%);
      -webkit-background-clip: text; background-clip: text;
      -webkit-text-fill-color: transparent; color: transparent;
    }

    /* ─── Nav (identique à homepage) ─── */
    .gd-nav {
      position: absolute; top: 0; left: 0; right: 0; z-index: 10;
      padding: 22px 48px;
      display: flex; justify-content: space-between; align-items: center;
      gap: 24px;
    }
    .gd-logo { display: inline-flex; align-items: center; color: #fff; }
    .gd-logo img, .gd-logo svg { height: 26px; width: auto; }
    .gd-nav__links { display: flex; gap: 32px; font-size: 13.5px; font-weight: 500; }
    .gd-nav__links a { color: rgba(255,255,255,0.7); transition: color .15s; }
    .gd-nav__links a:hover, .gd-nav__links a[aria-current="page"] { color: #fff; }
    .gd-nav__cta { display: flex; gap: 10px; }

    .gd-btn {
      display: inline-flex; align-items: center; gap: 10px;
      padding: 10px 18px;
      font-size: 13px; font-weight: 600;
      border-radius: 8px; border: 1px solid transparent;
      cursor: pointer; white-space: nowrap;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
    }
    .gd-btn:hover { transform: translateY(-1px); }
    .gd-btn--primary { background: var(--gd-action) !important; color: #fff !important; box-shadow: 0 0 24px var(--gd-action-glow); border-bottom: none !important; text-decoration: none !important; }
    .gd-btn--primary:link, .gd-btn--primary:visited { color: #fff !important; }
    .gd-btn--primary:hover { color: #fff !important; background: var(--gd-action) !important; box-shadow: 0 0 36px var(--gd-action-glow), 0 8px 20px rgba(0,0,0,0.25); border-bottom: none !important; }
    .gd-btn--ghost { background: rgba(255,255,255,0.04) !important; color: #fff !important; border-color: rgba(255,255,255,0.18); backdrop-filter: blur(12px); border-bottom: none !important; text-decoration: none !important; }
    .gd-btn--ghost:link, .gd-btn--ghost:visited { color: #fff !important; }
    .gd-btn--ghost:hover { color: #fff !important; background: rgba(255,255,255,0.09) !important; border-color: rgba(255,255,255,0.3); }
    .gd-btn--lg { padding: 16px 26px; font-size: 15px; border-radius: 10px; }
    .gd-btn__arrow { width: 16px; height: 16px; }

    .gd-burger {
      display: none; width: 42px; height: 42px; padding: 0;
      background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.18);
      border-radius: 10px; cursor: pointer; position: relative;
      backdrop-filter: blur(12px);
    }
    .gd-burger span {
      display: block; position: absolute; left: 11px; right: 11px;
      height: 1.5px; background: #fff; border-radius: 999px;
      transition: transform .28s ease, opacity .2s ease, top .28s ease;
    }
    .gd-burger span:nth-child(1) { top: 14px; }
    .gd-burger span:nth-child(2) { top: 20px; }
    .gd-burger span:nth-child(3) { top: 26px; }
    .gd-burger[aria-expanded="true"] span:nth-child(1) { top: 20px; transform: rotate(45deg); }
    .gd-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
    .gd-burger[aria-expanded="true"] span:nth-child(3) { top: 20px; transform: rotate(-45deg); }
    .gd-mobile-menu {
      position: fixed; inset: 0; z-index: 40;
      background: rgba(10,16,36,0.96);
      backdrop-filter: blur(24px);
      display: flex; flex-direction: column;
      padding: 100px 28px 36px;
      opacity: 0; transform: translateY(-14px);
      pointer-events: none; visibility: hidden;
      transition: opacity .28s, transform .28s, visibility .28s;
    }
    .gd-mobile-menu.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; visibility: visible; }
    .gd-mobile-menu a { color: #fff; font-size: 22px; font-weight: 500; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
    .gd-mobile-menu__ctas { margin-top: auto; display: flex; flex-direction: column; gap: 16px; padding-top: 32px; }
    .gd-mobile-menu__ctas .gd-btn { justify-content: center; padding: 15px 22px; font-size: 15px; border-bottom: none; }
    .gd-mobile-menu__close {
      position: absolute; top: 18px; right: 24px;
      width: 42px; height: 42px; padding: 0;
      background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.18);
      border-radius: 10px; cursor: pointer; color: #fff;
      display: inline-flex; align-items: center; justify-content: center;
    }
    .gd-mobile-menu__close svg { width: 16px; height: 16px; }
    body.is-menu-open { overflow: hidden; }

    @media (max-width: 900px) {
      .gd-nav { padding: 18px 24px; }
      .gd-nav__links { display: none; }
      .gd-nav__cta { display: none; }
      .gd-burger { display: inline-flex; align-items: center; justify-content: center; }
    }

    /* ─── Hero Ressources ─── */
    .gd-reshero {
      position: relative;
      padding: 160px 48px 100px;
      background: var(--gd-night);
      color: #fff;
      overflow: hidden;
    }
    .gd-reshero__grid {
      position: absolute; inset: 0; pointer-events: none;
      background-image:
        linear-gradient(to right, rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.05) 1px, transparent 1px);
      background-size: 56px 56px;
      mask-image: radial-gradient(ellipse 90% 75% at 50% 40%, black 0%, transparent 90%);
      -webkit-mask-image: radial-gradient(ellipse 90% 75% at 50% 40%, black 0%, transparent 90%);
    }
    .gd-reshero__halo {
      position: absolute; top: 40%; left: 50%;
      width: 780px; height: 780px;
      transform: translate(-50%, -50%);
      background: radial-gradient(circle, rgba(106,106,244,0.2) 0%, transparent 62%);
      filter: blur(22px); pointer-events: none;
    }
    .gd-reshero__inner {
      position: relative; max-width: 1180px; margin: 0 auto;
    }
    .gd-reshero__eyebrow-wrap { display: inline-flex; align-items: center; gap: 14px; margin-bottom: 24px; }
    .gd-reshero__line { flex: 0 0 32px; height: 1px; background: linear-gradient(90deg, transparent, var(--gd-action-light)); }
    .gd-reshero__lede {
      font-size: 18px; color: rgba(255,255,255,0.7);
      max-width: 640px; margin-top: 26px; line-height: 1.65;
    }

    /* ─── Filtres ─── */
    .gd-res-filters {
      position: relative; z-index: 5;
      padding: 28px 48px;
      background: var(--gd-paper);
      border-bottom: 1px solid var(--gd-line);
    }
    .gd-res-filters__inner {
      max-width: 1180px; margin: 0 auto;
      display: flex; gap: 8px; flex-wrap: wrap; align-items: center;
    }
    .gd-res-filter {
      padding: 8px 16px;
      background: transparent;
      border: 1px solid var(--gd-line);
      border-radius: 999px;
      font-family: var(--gd-sans); font-size: 12.5px; font-weight: 600;
      color: var(--gd-ink-soft); cursor: pointer;
      transition: background .15s, color .15s, border-color .15s;
    }
    .gd-res-filter:hover { background: var(--gd-canvas); color: var(--gd-ink); }
    .gd-res-filter[aria-pressed="true"] {
      background: var(--gd-ink); color: #fff; border-color: var(--gd-ink);
    }

    /* ─── Grid articles ─── */
    .gd-res-grid {
      padding: 64px 48px 96px;
      background: var(--gd-paper);
    }
    .gd-res-grid__inner {
      max-width: 1180px; margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px 24px;
    }
    @media (max-width: 900px) { .gd-res-grid__inner { grid-template-columns: 1fr 1fr; } }
    @media (max-width: 640px) { .gd-res-grid__inner { grid-template-columns: 1fr; } }

    .gd-card {
      display: flex; flex-direction: column;
      background: var(--gd-paper);
      border: 1px solid var(--gd-line);
      border-radius: 16px; overflow: hidden;
      transition: transform .25s, border-color .25s, box-shadow .25s;
    }
    .gd-card:hover {
      transform: translateY(-4px);
      border-color: rgba(74,111,232,0.3);
      box-shadow: 0 24px 50px -24px rgba(17,32,74,0.18);
    }
    .gd-card--featured {
      grid-column: 1 / -1;
      display: grid; grid-template-columns: 1.1fr 1fr;
      gap: 0;
    }
    @media (max-width: 900px) { .gd-card--featured { grid-template-columns: 1fr; } }

    .gd-card__visual {
      aspect-ratio: 16 / 10;
      position: relative;
      background: linear-gradient(165deg, var(--gd-night) 0%, var(--gd-blue) 100%);
      overflow: hidden;
    }
    .gd-card--featured .gd-card__visual { aspect-ratio: auto; min-height: 360px; }
    .gd-card__visual-grid {
      position: absolute; inset: 0;
      background-image:
        linear-gradient(to right, rgba(255,255,255,0.06) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.06) 1px, transparent 1px);
      background-size: 32px 32px;
    }
    .gd-card__visual-halo {
      position: absolute; top: 50%; left: 50%;
      width: 80%; height: 80%;
      transform: translate(-50%, -50%);
      background: radial-gradient(circle, rgba(106,106,244,0.25) 0%, transparent 65%);
      filter: blur(20px);
    }
    .gd-card__visual-glyph {
      position: absolute; inset: 0;
      display: flex; align-items: center; justify-content: center;
      font-family: var(--gd-mono); font-size: 72px; font-weight: 700;
      color: rgba(255,255,255,0.08); letter-spacing: -0.04em;
    }
    .gd-card__cat {
      position: absolute; top: 18px; left: 18px;
      display: inline-flex; align-items: center; gap: 6px;
      padding: 5px 11px;
      background: rgba(10,16,36,0.7);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 999px;
      backdrop-filter: blur(10px);
      font-family: var(--gd-mono); font-size: 10.5px; font-weight: 600;
      color: var(--gd-action-light);
      letter-spacing: 0.08em; text-transform: uppercase;
    }

    .gd-card__body {
      padding: 24px 26px 26px;
      display: flex; flex-direction: column; flex: 1;
    }
    .gd-card--featured .gd-card__body { padding: 40px 44px; justify-content: center; }
    .gd-card__meta {
      display: flex; align-items: center; gap: 10px;
      font-family: var(--gd-mono); font-size: 11px;
      color: var(--gd-muted);
      letter-spacing: 0.04em;
      margin-bottom: 12px;
    }
    .gd-card__meta-dot { width: 3px; height: 3px; border-radius: 999px; background: var(--gd-muted); }
    .gd-card__t {
      font-family: var(--gd-sans); font-weight: 600;
      font-size: 19px; line-height: 1.3;
      letter-spacing: -0.015em;
      color: var(--gd-ink);
      margin-bottom: 10px;
    }
    .gd-card--featured .gd-card__t { font-size: 30px; line-height: 1.15; margin-bottom: 16px; }
    .gd-card__excerpt {
      font-size: 14px; color: var(--gd-ink-soft); line-height: 1.6;
      margin-bottom: 18px;
    }
    .gd-card--featured .gd-card__excerpt { font-size: 16px; margin-bottom: 24px; max-width: 540px; }
    .gd-card__foot {
      margin-top: auto;
      display: flex; align-items: center; justify-content: space-between;
      gap: 14px;
    }
    .gd-card__author {
      display: inline-flex; align-items: center; gap: 10px;
      font-size: 12.5px; color: var(--gd-ink-soft);
    }
    .gd-card__author-avatar {
      width: 24px; height: 24px; border-radius: 999px;
      background: linear-gradient(135deg, var(--gd-action) 0%, var(--gd-blue) 100%);
      display: inline-flex; align-items: center; justify-content: center;
      font-size: 9px; font-weight: 700; color: #fff;
    }
    .gd-card__read {
      display: inline-flex; align-items: center; gap: 6px;
      font-family: var(--gd-mono); font-size: 11px;
      color: var(--gd-action);
      font-weight: 600;
    }
    .gd-card__read svg { width: 12px; height: 12px; transition: transform .2s; }
    .gd-card:hover .gd-card__read svg { transform: translateX(3px); }

    /* ─── Newsletter CTA ─── */
    .gd-newsletter {
      position: relative;
      padding: 100px 48px;
      background: var(--gd-night);
      color: #fff;
      overflow: hidden;
      text-align: center;
    }
    .gd-newsletter__grid {
      position: absolute; inset: 0; pointer-events: none;
      background-image:
        linear-gradient(to right, rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.05) 1px, transparent 1px);
      background-size: 56px 56px;
      mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 0%, transparent 80%);
    }
    .gd-newsletter__halo {
      position: absolute; bottom: -15%; left: 50%;
      transform: translateX(-50%);
      width: 680px; height: 400px;
      background: radial-gradient(ellipse at bottom, rgba(106,106,244,0.3) 0%, transparent 65%);
      filter: blur(30px); pointer-events: none;
    }
    .gd-newsletter__inner { position: relative; max-width: 640px; margin: 0 auto; }
    .gd-newsletter__h2 {
      font-family: var(--gd-sans); font-size: clamp(30px, 3.8vw, 44px);
      font-weight: 500; letter-spacing: -0.028em; line-height: 1.1;
      color: #fff;
      margin: 18px 0 18px;
    }
    .gd-newsletter__sub {
      font-size: 16px; color: rgba(255,255,255,0.68); line-height: 1.6;
      margin-bottom: 32px;
    }
    .gd-newsletter__form {
      display: flex; gap: 10px;
      max-width: 480px; margin: 0 auto;
    }
    .gd-newsletter__input {
      flex: 1;
      padding: 14px 18px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.14);
      border-radius: 10px;
      font-family: inherit; font-size: 14px;
      color: #fff;
    }
    .gd-newsletter__input::placeholder { color: rgba(255,255,255,0.4); }
    .gd-newsletter__input:focus { outline: none; border-color: var(--gd-action-light); background: rgba(255,255,255,0.1); }
    .gd-newsletter__consent {
      margin-top: 14px;
      font-family: var(--gd-mono); font-size: 10.5px;
      color: rgba(255,255,255,0.4);
      letter-spacing: 0.04em;
    }
    @media (max-width: 560px) { .gd-newsletter__form { flex-direction: column; } }

    /* ─── Footer ─── */
    .gd-footer {
      padding: 72px 48px 36px;
      background: var(--gd-night-2);
      border-top: 1px solid rgba(255,255,255,0.08);
      color: #fff;
    }
    .gd-footer__grid {
      max-width: 1280px; margin: 0 auto;
      display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr;
      gap: 48px;
    }
    .gd-footer__about p { font-size: 13px; color: rgba(255,255,255,0.55); line-height: 1.65; margin-top: 22px; max-width: 300px; }
    .gd-footer__col-title {
      font-family: var(--gd-mono); font-size: 11px; font-weight: 700;
      color: #fff; text-transform: uppercase; letter-spacing: 0.1em;
      margin-bottom: 18px;
    }
    .gd-footer__col a { display: block; font-size: 13px; color: rgba(255,255,255,0.62); margin-bottom: 10px; transition: color .15s; }
    .gd-footer__col a:hover { color: var(--gd-action-light); }
    .gd-footer__bottom {
      max-width: 1280px; margin: 48px auto 0;
      padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08);
      display: flex; justify-content: space-between; align-items: center;
      flex-wrap: wrap; gap: 12px;
      font-size: 12px; color: rgba(255,255,255,0.4);
    }
    .gd-footer__version { font-family: var(--gd-mono); }
    @media (max-width: 720px) {
      .gd-footer { padding: 56px 24px 28px; }
      .gd-footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
      .gd-footer__about { grid-column: 1 / -1; }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation: none !important; transition: none !important; }
      html { scroll-behavior: auto; }
    }