:root {
      --bg: #0f0a07;
      --bg-soft: #17100b;
      --card: #1b130d;
      --paper: #f5efe5;
      --gold: #c9a45d;
      --gold-soft: rgba(201, 164, 93, .22);
      --text: #f8f0e4;
      --muted: rgba(248, 240, 228, .72);
      --line: rgba(201, 164, 93, .28);
      --shadow: 0 22px 70px rgba(0, 0, 0, .45);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      background:
        radial-gradient(circle at 20% 0%, rgba(201, 164, 93, .15), transparent 28rem),
        linear-gradient(180deg, #140d08 0%, var(--bg) 46%, #070403 100%);
      color: var(--text);
      font-family: Georgia, 'Times New Roman', serif;
      font-size: 14px;
      line-height: 1.6;
    }

    a { color: inherit; text-decoration: none; }

    .site-header {
      min-height: 58vh;
      display: grid;
      place-items: center;
      padding: 48px 20px;
      position: relative;
      overflow: hidden;
      background-image:
        linear-gradient(rgba(8, 4, 2, .64), rgba(8, 4, 2, .72)),
        url('./assets/header-argenterie-antiquites.png');
      background-size: cover;
      background-position: center;
    }

    .site-header::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 0%, rgba(15, 10, 7, .94) 100%);
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      width: min(1040px, 100%);
      text-align: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 18px;
      color: var(--gold);
      letter-spacing: .18em;
      text-transform: uppercase;
      font-size: 11px;
      font-family: Arial, Helvetica, sans-serif;
      font-weight: 700;
    }

    .eyebrow::before,
    .eyebrow::after {
      content: "";
      width: 42px;
      height: 1px;
      background: var(--gold);
      opacity: .8;
    }

    h1 {
      margin: 0;
      font-size: clamp(36px, 7vw, 84px);
      line-height: .95;
      font-weight: 400;
      letter-spacing: -.04em;
    }

    .hero-text {
      margin: 22px auto 0;
      max-width: 710px;
      color: var(--muted);
      font-family: Arial, Helvetica, sans-serif;
      font-size: 14px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      margin-top: 26px;
    }

    .btn {
      display: inline-flex;
      min-height: 44px;
      align-items: center;
      justify-content: center;
      padding: 12px 18px;
      border: 1px solid var(--gold);
      border-radius: 999px;
      background: rgba(201, 164, 93, .08);
      color: var(--paper);
      text-decoration: none;
      font-family: Arial, Helvetica, sans-serif;
      font-weight: 700;
      transition: background .25s ease, transform .25s ease;
    }

    .btn:hover { background: var(--gold-soft); transform: translateY(-2px); }
    .btn-gold { background: linear-gradient(180deg, #d5b76c, #b99349); color: #100b07; border: none; }

    .wrap {
      width: min(1040px, calc(100% - 36px));
      margin: 0 auto;
      padding: 64px 0 78px;
    }

    .form-top {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 28px;
      border-bottom: 1px solid var(--line);
      padding-bottom: 24px;
    }

    .form-top h2 {
      margin: 0;
      font-size: clamp(28px, 4vw, 46px);
      font-weight: 400;
      letter-spacing: -.03em;
    }

    .form-top p {
      margin: 0;
      max-width: 500px;
      color: var(--muted);
      font-family: Arial, Helvetica, sans-serif;
    }

    .contact-card {
      border: 1px solid var(--line);
      border-radius: 28px;
      background: linear-gradient(180deg, rgba(23,16,11,.96), rgba(12,8,6,.96));
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .form-inner { padding: clamp(22px, 4vw, 42px); }
    form { display: grid; gap: 20px; }
    .row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }

    label, .field-label, .group-title {
      display: block;
      margin-bottom: 8px;
      color: var(--paper);
      font-family: Arial, Helvetica, sans-serif;
      font-weight: 700;
    }

    input, textarea, button {
      font-family: Arial, Helvetica, sans-serif;
      font-size: 14px;
    }

    input[type="text"], input[type="tel"], input[type="email"], textarea {
      width: 100%;
      min-height: 48px;
      padding: 13px 15px;
      border: 1px solid var(--line);
      border-radius: 16px;
      background: rgba(0,0,0,.25);
      color: var(--text);
      outline: none;
    }

    textarea { min-height: 132px; resize: vertical; }
    input:focus, textarea:focus { border-color: var(--gold); box-shadow: 0 0 0 4px rgba(201,164,93,.12); }

    .separator { height: 1px; background: var(--line); margin: 8px 0; }

    .dropdown { position: relative; font-family: Arial, Helvetica, sans-serif; }
    .dropdown-button {
      width: 100%;
      min-height: 50px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 14px;
      padding: 13px 16px;
      border: 1px solid var(--line);
      border-radius: 16px;
      background: rgba(0,0,0,.25);
      color: var(--text);
      cursor: pointer;
      text-align: left;
    }

    .dropdown-button span { color: var(--muted); }
    .dropdown-button::after { content: "⌄"; color: var(--gold); font-size: 18px; }

    .dropdown-panel {
      display: none;
      position: absolute;
      z-index: 5;
      top: calc(100% + 10px);
      left: 0;
      right: 0;
      max-height: 290px;
      overflow: auto;
      padding: 12px;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: #0b0705;
      box-shadow: 0 18px 60px rgba(0,0,0,.56);
    }

    .dropdown.open .dropdown-panel { display: grid; gap: 6px; }

    .option, .check {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin: 0;
      padding: 10px 10px;
      border-radius: 12px;
      color: var(--muted);
      cursor: pointer;
      font-family: Arial, Helvetica, sans-serif;
      font-weight: 600;
    }

    .option:hover { background: rgba(201,164,93,.1); color: var(--paper); }
    input[type="checkbox"] { width: 18px; height: 18px; margin-top: 1px; accent-color: var(--gold); flex: 0 0 auto; }
    .checks { display: grid; gap: 10px; }
    .hint { margin-top: 8px; color: var(--muted); font-family: Arial, Helvetica, sans-serif; }

    .submit {
      width: 100%;
      min-height: 54px;
      border: 1px solid var(--gold);
      border-radius: 999px;
      background: linear-gradient(180deg, #d5b76c, #b99349);
      color: #100b07;
      cursor: pointer;
      font-weight: 800;
      transition: transform .25s ease, filter .25s ease;
    }

    .submit:hover { transform: translateY(-2px); filter: brightness(1.04); }
    .note { margin: 0; color: var(--muted); text-align: center; font-family: Arial, Helvetica, sans-serif; }

    .site-footer {
      border-top: 1px solid var(--line);
      padding: 28px 20px;
      color: var(--muted);
      text-align: center;
      font-family: Arial, Helvetica, sans-serif;
    }

    @media (max-width: 920px) {
      .form-top { align-items: start; flex-direction: column; }
      .site-header { min-height: 52vh; }
    }

    @media (max-width: 640px) {
      body { font-size: 14px; }
      .site-header { min-height: 48vh; padding: 38px 18px; }
      .eyebrow::before, .eyebrow::after { width: 24px; }
      .wrap { width: min(100% - 24px, 1040px); padding: 42px 0 56px; }
      .row { grid-template-columns: 1fr; gap: 14px; }
      .hero-actions .btn { min-width: 138px; }
      .contact-card { border-radius: 22px; }
      .dropdown-panel { position: static; margin-top: 10px; }
    }
  

/* Correctifs de compatibilité */
html, body { width:100%; min-height:100%; }
body { -webkit-font-smoothing: antialiased; }
.site-header { width:100%; background-repeat:no-repeat; }