:root {
    --bg: #FCFCFC;
    --paper: #FFFFFF;
    --ink: #14171D;
    --ink-soft: #3C4250;
    --ink-mute: #6C7280;
    --line: #E9EAEE;
    --line-strong: #D8DAE1;
    --accent: #2B3FE0;
    --accent-deep: #1B2AAE;
    --accent-soft: #EEF0FD;
    --night: #0F1219;
    --night-ink: #EFF1F6;
    --night-mute: #9BA1AE;
    --night-line: rgba(239, 241, 246, 0.14);
    --accent-light: #A9B4FF;
    --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
    --sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --max: 1220px;
    --gutter: clamp(1.25rem, 4vw, 2.5rem);
  }

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

  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    font-family: var(--sans);
    font-weight: 400;
    font-size: 17px;
    line-height: 1.65;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: clip;
  }

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

  a {
    color: var(--ink);
    text-decoration: none;
    transition: color 160ms ease;
  }
  a:hover { color: var(--accent); }
  a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 2px;
  }

  ::selection { background: var(--accent); color: #fff; }

  .wrap {
    max-width: var(--max);
    margin: 0 auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }

  .serif {
    font-family: var(--serif);
    font-optical-sizing: auto;
    letter-spacing: -0.01em;
  }

  /* ====== NAV ====== */
  .nav {
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: saturate(140%) blur(12px);
    -webkit-backdrop-filter: saturate(140%) blur(12px);
    background: rgba(252, 252, 252, 0.86);
    border-bottom: 1px solid var(--line);
  }
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 0.85rem;
    padding-bottom: 0.85rem;
  }
  .ariane {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
    min-width: 0;
  }
  .brand {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.15rem;
    letter-spacing: -0.01em;
    white-space: nowrap;
  }
  .brand .dot { color: var(--accent); }
  .ariane .crumb {
    font-size: 0.82rem;
    color: var(--ink-mute);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .ariane .crumb::before {
    content: "/";
    margin-right: 0.6rem;
    color: var(--line-strong);
  }
  @media (max-width: 560px) {
    .ariane .crumb { display: none; }
  }

  .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.78rem 1.4rem;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 999px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 200ms ease, color 200ms ease, border-color 200ms ease, transform 200ms ease;
    text-decoration: none;
    white-space: nowrap;
  }
  .btn-primary {
    background: var(--ink);
    color: #fff;
  }
  .btn-primary:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-1px);
  }
  .btn-ghost {
    border-color: var(--line-strong);
    color: var(--ink);
    background: transparent;
  }
  .btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--paper);
  }
  .btn-accent {
    background: var(--accent);
    color: #fff;
  }
  .btn-accent:hover {
    background: var(--accent-deep);
    color: #fff;
    transform: translateY(-1px);
  }
  .btn-outline-light {
    border-color: rgba(239, 241, 246, 0.35);
    color: var(--night-ink);
    background: transparent;
  }
  .btn-outline-light:hover {
    border-color: #fff;
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
  }
  @media (max-width: 640px) {
    .nav .btn { padding: 0.6rem 1rem; font-size: 0.82rem; }
  }

  /* ====== HERO ====== */
  .hero {
    padding-top: clamp(3.5rem, 8vw, 6.5rem);
    padding-bottom: clamp(2.5rem, 5vw, 4rem);
    background: var(--bg);
  }
  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.76rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-mute);
    font-weight: 500;
    margin-bottom: 1.6rem;
  }
  .eyebrow::before {
    content: "";
    width: 9px;
    height: 9px;
    background: var(--accent);
    flex: none;
  }
  h1.hero-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(2.6rem, 6.4vw, 5rem);
    line-height: 1.02;
    letter-spacing: -0.026em;
    margin: 0 0 1.7rem;
    max-width: 21ch;
  }
  .hero-title em {
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
  }
  .hero-sub {
    max-width: 58ch;
    font-size: clamp(1.05rem, 1.4vw, 1.2rem);
    color: var(--ink-soft);
    line-height: 1.6;
    margin: 0 0 2.4rem;
  }
  .hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
  }
  .hero-note {
    margin: 1.8rem 0 0;
    font-size: 0.88rem;
    color: var(--ink-mute);
    max-width: 62ch;
  }

  /* ====== BANDE CONFORMITE ====== */
  .prix-band { padding: 0 0 clamp(2.2rem, 4vw, 3rem); }
  .prix-card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 1.4rem 1.6rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    transition: border-color 220ms ease;
  }
  .prix-card:hover { border-color: var(--accent); }
  .prix-card .prix-txt { max-width: 44rem; }
  .prix-card b {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.2rem;
    letter-spacing: -0.01em;
  }
  .prix-card p {
    margin: 0.3rem 0 0;
    font-size: 0.92rem;
    color: var(--ink-soft);
  }
  .prix-card .prix-lien {
    color: var(--accent);
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
    flex: none;
  }
  .prix-card .prix-lien:hover { color: var(--accent-deep); }

  /* ====== SECTIONS ====== */
  section {
    padding-top: clamp(3.5rem, 7vw, 6rem);
    padding-bottom: clamp(3.5rem, 7vw, 6rem);
    position: relative;
    background: var(--bg);
  }
  main > section + section { border-top: 1px solid var(--line); }
  section.prix-band { padding-top: 0; padding-bottom: clamp(2.2rem, 4vw, 3rem); border-top: none !important; }
  section.contact-sec { border-top: none !important; padding-top: 0; }

  .section-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1rem;
    margin-bottom: clamp(2.2rem, 4.5vw, 3.4rem);
    max-width: 820px;
  }
  .section-label {
    font-size: 0.76rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-mute);
    font-weight: 600;
    display: inline-flex;
    align-items: baseline;
    gap: 0.75rem;
  }
  .section-label .num {
    font-family: var(--serif);
    font-size: 0.95rem;
    color: var(--accent);
    letter-spacing: 0.04em;
  }
  .section-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(2rem, 4.4vw, 3.2rem);
    line-height: 1.06;
    letter-spacing: -0.022em;
    margin: 0;
  }
  .section-title em {
    font-style: italic;
    color: var(--accent);
  }
  .section-lead {
    color: var(--ink-soft);
    font-size: 1.05rem;
    max-width: 62ch;
    margin: 0.4rem 0 0;
  }

  /* ====== CARTE DEMO ====== */
  .metiers {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
  }
  .demo-une {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 20px;
    overflow: hidden;
    transition: border-color 220ms ease;
  }
  .demo-une:hover { border-color: var(--accent); }
  .demo-une img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-right: 1px solid var(--line);
  }
  .demo-une-corps {
    padding: clamp(1.6rem, 3vw, 2.6rem);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  .demo-une-corps .m-nom {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(1.6rem, 2.4vw, 2rem);
    letter-spacing: -0.01em;
  }
  .demo-une-corps .m-fictif { font-size: 0.82rem; color: var(--ink-mute); }
  .demo-une-corps p { font-size: 0.98rem; color: var(--ink-soft); line-height: 1.65; margin: 0.5rem 0 1.2rem; }
  .demo-une-corps ul {
    margin: 0 0 1.4rem;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.45rem;
    font-size: 0.92rem;
    color: var(--ink-soft);
  }
  .demo-une-corps li::before {
    content: "";
    display: inline-block;
    width: 7px; height: 7px;
    background: var(--accent);
    margin-right: 0.6rem;
    vertical-align: 0.1em;
  }
  .demo-liens {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    align-items: center;
  }
  .demo-liens .sous {
    font-size: 0.86rem;
    color: var(--ink-mute);
  }
  .demo-liens .sous a { color: var(--accent); font-weight: 500; }
  .demo-liens .sous a:hover { color: var(--accent-deep); }
  @media (max-width: 860px) {
    .demo-une { grid-template-columns: 1fr; }
    .demo-une img { aspect-ratio: 16 / 9; border-right: none; border-bottom: 1px solid var(--line); }
  }

  /* ====== GALERIE ====== */
  .galerie {
    margin-top: clamp(2rem, 4vw, 3rem);
    column-count: 3;
    column-gap: 1rem;
  }
  @media (max-width: 980px) { .galerie { column-count: 2; } }
  @media (max-width: 560px) { .galerie { column-count: 1; } }
  .galerie figure {
    margin: 0 0 1rem;
    break-inside: avoid;
  }
  .galerie a {
    display: block;
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
    background: var(--paper);
    transition: border-color 220ms ease, transform 220ms ease;
  }
  .galerie a:hover { border-color: var(--accent); transform: translateY(-2px); }
  .galerie img { width: 100%; display: block; }
  .galerie figcaption {
    font-size: 0.82rem;
    color: var(--ink-mute);
    margin-top: 0.45rem;
    padding-left: 0.2rem;
  }
  .galerie figcaption b { color: var(--ink-soft); font-weight: 500; }

  /* ====== AVANTAGES / FAQ ====== */
  .avantages {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: 20px;
    overflow: hidden;
  }
  @media (max-width: 980px) { .avantages { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  @media (max-width: 640px) { .avantages { grid-template-columns: 1fr; } }
  .avantage {
    background: var(--paper);
    padding: clamp(1.4rem, 2.5vw, 1.9rem);
    transition: background 220ms ease;
  }
  .avantage:hover { background: var(--accent-soft); }
  .avantage b {
    display: block;
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.2rem;
    letter-spacing: -0.01em;
    margin-bottom: 0.35rem;
  }
  .avantage p { margin: 0; font-size: 0.92rem; color: var(--ink-soft); }

  /* ====== ETAPES ====== */
  .etapes {
    counter-reset: e;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: clamp(1.4rem, 3vw, 2.4rem);
  }
  .etape {
    padding-top: 1.4rem;
    border-top: 1px solid var(--line-strong);
  }
  .etape::before {
    counter-increment: e;
    content: counter(e, decimal-leading-zero);
    display: block;
    font-family: var(--serif);
    font-size: clamp(1.9rem, 3vw, 2.4rem);
    color: var(--accent);
    line-height: 1;
    letter-spacing: -0.01em;
    margin-bottom: 1rem;
  }
  .etape b {
    display: block;
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.3rem;
    letter-spacing: -0.01em;
    margin-bottom: 0.4rem;
  }
  .etape p { margin: 0; font-size: 0.95rem; color: var(--ink-soft); }

  /* ====== CONTACT ====== */
  .cta-fin {
    background: var(--night);
    color: var(--night-ink);
    border-radius: 24px;
    padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 4vw, 3rem);
    text-align: center;
  }
  .cta-fin h2 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(1.9rem, 3.4vw, 2.7rem);
    line-height: 1.12;
    letter-spacing: -0.02em;
    margin: 0 0 1rem;
    color: #FDFDFE;
  }
  .cta-fin h2 em { font-style: italic; color: var(--accent-light); }
  .cta-fin p {
    color: var(--night-mute);
    max-width: 38rem;
    margin: 0 auto 1.6rem;
  }
  .cta-actions {
    display: flex;
    gap: 0.8rem;
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
  }
  .cta-actions .tel {
    font-size: 1rem;
    color: var(--night-ink);
    padding-bottom: 2px;
    border-bottom: 1px solid var(--accent-light);
  }
  .cta-actions .tel:hover { color: #fff; border-bottom-color: #fff; }

  /* ====== FOOTER ====== */
  footer {
    padding: 2.5rem 0 3rem;
    border-top: 1px solid var(--line);
    color: var(--ink-mute);
    font-size: 0.88rem;
    background: var(--bg);
  }
  footer a { color: var(--ink-soft); }
  footer a:hover { color: var(--accent); }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.001ms !important;
      transition-duration: 0.001ms !important;
    }
    html { scroll-behavior: auto; }
  }