*, *::before, *::after { box-sizing: border-box; }
    :root {
      --navy: #0F1F3D;
      --navy-mid: #1B3360;
      --gold: #7C2D12;
      --gold-soft: #FFF5E6;
      --paper: #FAFAF9;
      --surface: rgba(255,255,255,0.86);
      --surface-strong: #FFFFFF;
      --line: rgba(15,31,61,0.11);
      --text: #111827;
      --text-soft: #475569;
      --muted: #475569;
      --shadow: 0 18px 60px rgba(15,31,61,0.10);
      --radius: 8px;
    }

    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--estmate-font-body, Inter, system-ui, sans-serif);
      color: var(--text);
      background:
        linear-gradient(180deg, rgba(245,240,231,0.92) 0%, rgba(238,243,249,0.94) 48%, rgba(248,243,234,0.92) 100%);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

    h1, h2, h3 {
      font-family: var(--estmate-font-heading, Inter, system-ui, sans-serif);
      letter-spacing: 0;
      line-height: 1.15;
      color: var(--navy);
    }

    a { color: inherit; }

    .topbar {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(250,250,249,0.88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--line);
    }

    .topbar-inner {
      max-width: 1120px;
      margin: 0 auto;
      min-height: 72px;
      padding: 12px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--navy);
      font-weight: 800;
      font-size: 1.55rem;
      text-decoration: none;
      letter-spacing: -0.02em;
      white-space: nowrap;
      min-height: 44px;
    }

    .brand img,
    .brand-mark {
      width: 34px;
      height: 34px;
      display: block;
      flex: 0 0 auto;
    }

    .brand-mark__shield { fill: var(--navy); }
    .brand-mark__roof {
      fill: none;
      stroke: #F7F6F3;
      stroke-width: 4.2;
      stroke-linecap: round;
      stroke-linejoin: round;
    }
    .brand-mark__check {
      fill: none;
      stroke: var(--gold);
      stroke-width: 4.4;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .topbar-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .app-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 16px;
      border-radius: var(--radius);
      background: var(--navy);
      color: #fff;
      text-decoration: none;
      font-weight: 700;
      font-size: 0.95rem;
      box-shadow: 0 8px 22px rgba(15,31,61,0.16);
    }

    .lang-switcher {
      display: inline-flex;
      align-items: center;
      gap: 0;
      padding: 0;
      border: 1px solid transparent;
      border-radius: 999px;
      background: transparent;
    }

    .lang-switcher button {
      appearance: none;
      border: 0;
      background: transparent;
      color: var(--text-soft);
      min-width: 44px;
      min-height: 44px;
      padding: 0 10px;
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 800;
      cursor: pointer;
    }

    .lang-switcher button[aria-pressed="true"] {
      background: rgba(15,31,61,0.10);
      color: var(--navy);
    }

    .guide-tabs-wrap {
      max-width: 1120px;
      margin: 0 auto;
      padding: 0 24px 26px;
    }

    .guide-tabs {
      display: inline-flex;
      gap: 6px;
      padding: 6px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255,255,255,0.72);
      box-shadow: 0 10px 32px rgba(15,31,61,0.08);
    }

    .guide-tabs button {
      appearance: none;
      border: 0;
      min-height: 44px;
      padding: 0 18px;
      border-radius: 6px;
      background: transparent;
      color: var(--text-soft);
      font: inherit;
      font-weight: 800;
      cursor: pointer;
    }

    .guide-tabs button[aria-selected="true"] {
      background: var(--navy);
      color: #fff;
      box-shadow: 0 8px 22px rgba(15,31,61,0.14);
    }

    .hero {
      max-width: 1120px;
      margin: 0 auto;
      padding: 68px 24px 36px;
    }

    .eyebrow {
      margin: 0 0 14px;
      color: var(--gold);
      font-size: 0.76rem;
      font-weight: 800;
      letter-spacing: 0.18em;
      text-transform: uppercase;
    }

    .hero h1 {
      max-width: 820px;
      margin: 0;
      font-size: clamp(2.35rem, 7vw, 4.85rem);
      letter-spacing: -0.04em;
    }

    .hero p {
      max-width: 720px;
      margin: 22px 0 0;
      color: var(--text-soft);
      font-size: clamp(1.05rem, 2vw, 1.28rem);
    }

    .layout {
      max-width: 1120px;
      margin: 0 auto;
      padding: 0 24px 80px;
      display: grid;
      grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
      gap: 30px;
      align-items: start;
    }

    .toc {
      position: sticky;
      top: 96px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      padding: 18px;
      box-shadow: 0 12px 35px rgba(15,31,61,0.07);
    }

    .toc-title {
      margin: 0 0 10px;
      font-size: 0.82rem;
      color: var(--muted);
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    .toc a {
      display: block;
      min-height: 44px;
      padding: 8px 0;
      color: var(--text-soft);
      text-decoration: none;
      font-size: 0.94rem;
      font-weight: 600;
    }

    .toc a:hover { color: var(--navy); }

    .content {
      display: grid;
      gap: 18px;
    }

    .doc-view {
      display: none;
    }

    .doc-view.is-active {
      display: grid;
      gap: 18px;
    }

    .doc-lang { display: none; }
    html[data-doc-lang="nl"] .doc-lang[data-lang="nl"],
    html[data-doc-lang="fr"] .doc-lang[data-lang="fr"],
    html[data-doc-lang="en"] .doc-lang[data-lang="en"] {
      display: grid;
      gap: 18px;
    }

    .panel {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface-strong);
      padding: clamp(22px, 4vw, 38px);
      box-shadow: var(--shadow);
      scroll-margin-top: 100px;
    }

    .panel h2 {
      margin: 0 0 14px;
      font-size: clamp(1.55rem, 3vw, 2.1rem);
      letter-spacing: -0.02em;
    }

    .panel h3 {
      margin: 24px 0 8px;
      font-size: 1.08rem;
      letter-spacing: -0.01em;
    }

    .panel p,
    .panel li {
      color: var(--text-soft);
      font-size: 1rem;
    }

    .panel p { margin: 0 0 12px; }
    .panel ul,
    .panel ol {
      margin: 12px 0 0;
      padding-left: 22px;
    }

    .panel li + li { margin-top: 8px; }

    .steps {
      counter-reset: step;
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .step {
      position: relative;
      padding: 18px 18px 18px 58px;
      border: 1px solid rgba(15,31,61,0.08);
      border-radius: var(--radius);
      background: #F8FAFC;
    }

    .step::before {
      counter-increment: step;
      content: counter(step);
      position: absolute;
      left: 18px;
      top: 18px;
      width: 28px;
      height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: var(--navy);
      color: #fff;
      font-weight: 800;
      font-size: 0.85rem;
    }

    .step strong {
      display: block;
      color: var(--navy);
      margin-bottom: 3px;
    }

    .tip {
      margin-top: 18px;
      padding: 16px 18px;
      border-radius: var(--radius);
      background: var(--gold-soft);
      border: 1px solid rgba(217,119,6,0.20);
      color: #7C3F00;
      font-weight: 600;
    }

    .first-success-panel {
      background:
        radial-gradient(circle at top right, rgba(217,119,6,0.10), transparent 32%),
        linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
    }

    .first-success-panel h2 {
      max-width: 680px;
    }

    .first-success-panel > p {
      max-width: 760px;
    }

    .first-success-list {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 12px;
      margin-top: 20px;
    }

    .first-success-list div {
      padding: 18px;
      border: 1px solid rgba(15,31,61,0.08);
      border-radius: var(--radius);
      background: rgba(255,255,255,0.72);
    }

    .first-success-list strong {
      display: block;
      margin-bottom: 8px;
      color: var(--navy);
    }

    .first-success-list span {
      color: var(--text-soft);
      font-size: 0.94rem;
      line-height: 1.55;
    }

    .first-success-cta {
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      margin-top: 20px;
      color: var(--navy);
      font-weight: 850;
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .module-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
      margin-top: 18px;
    }

    .module-card {
      padding: 18px;
      border: 1px solid rgba(15,31,61,0.08);
      border-radius: var(--radius);
      background: #F8FAFC;
    }

    .module-card h3 {
      margin-top: 0;
      color: var(--navy);
    }

    .faq-item {
      padding: 16px 0;
      border-top: 1px solid var(--line);
    }

    .faq-item:first-of-type { border-top: 0; }
    .faq-item h3 { margin-top: 0; }

    .workflow-intro {
      max-width: 780px;
    }

    .workflow-map {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 10px;
      margin-top: 20px;
    }

    .workflow-map a {
      display: flex;
      align-items: center;
      min-height: 72px;
      padding: 14px;
      border: 1px solid rgba(15,31,61,0.10);
      border-radius: var(--radius);
      background: #F8FAFC;
      color: var(--navy);
      text-decoration: none;
      font-weight: 800;
      line-height: 1.25;
    }

    .walkthrough-section {
      display: grid;
      gap: 18px;
    }

    .walkthrough-step {
      display: grid;
      grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1.18fr);
      gap: 24px;
      align-items: start;
      padding-top: 18px;
      border-top: 1px solid var(--line);
    }

    .walkthrough-step:first-of-type {
      padding-top: 0;
      border-top: 0;
    }

    .walkthrough-copy h3 {
      margin-top: 0;
      font-size: 1.28rem;
    }

    .walkthrough-copy ol {
      padding-left: 20px;
    }

    .screen-card {
      position: relative;
      margin: 0;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #F7F6F3;
      box-shadow: 0 14px 38px rgba(15,31,61,0.08);
    }

    .screen-top {
      display: none;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      min-height: 42px;
      padding: 10px 12px;
      background: var(--navy);
      color: #fff;
      font-size: 0.76rem;
      font-weight: 800;
    }

    .screen-dots {
      display: inline-flex;
      gap: 5px;
    }

    .screen-dots span {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: rgba(255,255,255,0.55);
    }

    .screen-body {
      display: grid;
      grid-template-columns: 56px minmax(0, 1fr);
      min-height: 320px;
      background: #F7F6F3;
    }

    .screen-nav {
      display: grid;
      gap: 4px;
      align-content: start;
      padding: 14px 0;
      background: linear-gradient(180deg, #14284D 0%, #0F1F3D 100%);
      color: rgba(255,255,255,0.82);
      font-size: 0.66rem;
      font-weight: 650;
    }

    .screen-nav::before {
      content: "";
      display: block;
      width: 28px;
      height: 28px;
      margin: 0 auto 12px;
      background: url("/icons/estmate-mark-light.svg") center / contain no-repeat;
    }

    .screen-nav span {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      margin: 0 8px;
      padding: 0;
      border-left: 0;
      border-radius: 10px;
      font-size: 0;
    }

    .screen-nav span::after {
      content: "";
      width: 14px;
      height: 14px;
      border-radius: 4px;
      border: 1.8px solid currentColor;
      opacity: 0.72;
    }

    .screen-nav .active {
      background: rgba(255,255,255,0.10);
      color: #fff;
    }

    .screen-nav .active::after {
      opacity: 1;
    }

    .screen-main {
      padding: 18px;
      display: grid;
      gap: 12px;
      align-content: start;
      background: #F7F6F3;
    }

    .screen-title {
      color: var(--navy);
      font-weight: 900;
      font-size: 1.16rem;
    }

    .screen-toolbar {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .screen-pill,
    .screen-button {
      display: inline-flex;
      align-items: center;
      min-height: 30px;
      padding: 0 10px;
      border-radius: 999px;
      border: 1px solid rgba(15,31,61,0.10);
      background: #fff;
      color: var(--navy);
      font-size: 0.68rem;
      font-weight: 800;
    }

    .screen-button {
      border-radius: 8px;
      background: #F4F1EB;
      color: var(--navy);
      box-shadow: 0 1px 4px rgba(15,31,61,0.06);
    }

    .screen-lines,
    .screen-list {
      display: grid;
      gap: 8px;
    }

    .screen-line,
    .screen-list span {
      min-height: 34px;
      border: 1px solid rgba(15,31,61,0.08);
      border-radius: 6px;
      background: #fff;
    }

    .screen-line.short { width: 62%; }
    .screen-line.medium { width: 78%; }

    .screen-map {
      position: relative;
      min-height: 130px;
      border: 1px solid rgba(15,31,61,0.10);
      border-radius: 8px;
      background:
        linear-gradient(35deg, rgba(15,31,61,0.08) 1px, transparent 1px),
        linear-gradient(145deg, rgba(217,119,6,0.10), rgba(255,255,255,0.2)),
        #F3F7FB;
      background-size: 34px 34px, cover, cover;
    }

    .screen-pin {
      position: absolute;
      width: 20px;
      height: 20px;
      border-radius: 50% 50% 50% 0;
      transform: rotate(-45deg);
      background: var(--gold);
      border: 3px solid #fff;
      box-shadow: 0 5px 12px rgba(15,31,61,0.18);
    }

    .screen-pin.green { background: #16A34A; }
    .screen-pin.one { left: 24%; top: 28%; }
    .screen-pin.two { left: 55%; top: 45%; }
    .screen-pin.three { right: 18%; top: 22%; }

    .screen-dropzone {
      min-height: 130px;
      display: grid;
      place-items: center;
      padding: 18px;
      border: 2px dashed rgba(15,31,61,0.24);
      border-radius: 8px;
      background: #fff;
      color: var(--navy);
      text-align: center;
      font-weight: 900;
    }

    .screen-checklist {
      display: grid;
      gap: 8px;
    }

    .screen-checklist span {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      padding: 9px 10px;
      border-radius: 6px;
      background: #fff;
      color: var(--text-soft);
      font-size: 0.7rem;
      font-weight: 800;
    }

    .screen-checklist b {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 24px;
      padding: 0 8px;
      border-radius: 999px;
      background: #D1FAE5;
      color: #065F46;
    }

    .screen-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 8px;
    }

    .screen-metrics span {
      min-height: 72px;
      padding: 10px;
      border-radius: 8px;
      border: 1px solid rgba(27,51,96,0.10);
      background: linear-gradient(180deg, #F4F1EB 0%, #EEE8DE 100%);
      color: var(--navy);
      font-size: 0.72rem;
      font-weight: 900;
    }

    .screen-metrics small {
      display: block;
      margin-top: 6px;
      color: var(--navy);
      font-size: 1rem;
    }

    .screen-card figcaption {
      padding: 10px 12px;
      border-top: 1px solid rgba(15,31,61,0.08);
      color: var(--muted);
      font-size: 0.78rem;
      font-weight: 700;
      background: #fff;
    }

    .screen-card figcaption::before {
      content: "Web: ";
      color: var(--navy);
      font-weight: 900;
    }

    html[data-doc-lang="fr"] .screen-card figcaption::before {
      content: "Web : ";
    }

    html[data-doc-lang="en"] .screen-card figcaption::before {
      content: "Web: ";
    }

    @media (max-width: 1040px) {
      .walkthrough-step {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 860px) {
      .topbar-inner {
        align-items: flex-start;
        flex-direction: column;
      }

      .topbar-actions {
        width: 100%;
        justify-content: space-between;
      }

      .layout {
        grid-template-columns: 1fr;
      }

      .toc {
        position: static;
      }

      .module-grid {
        grid-template-columns: 1fr;
      }

      .workflow-map {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

    }

    @media (max-width: 760px) {
      .screen-card {
        width: min(calc(100vw - 40px), 350px);
        margin-inline: auto;
        border: 6px solid var(--navy);
        border-radius: 26px;
        background: var(--navy);
        box-shadow: 0 20px 55px rgba(15,31,61,0.22);
      }

      .screen-card::before {
        content: none;
      }

      .screen-top {
        display: flex;
        min-height: 58px;
        justify-content: flex-start;
        padding: 0 14px;
        border-radius: 19px 19px 0 0;
        background: linear-gradient(180deg, #1B3360 0%, #142847 100%);
        text-align: center;
        font-size: 0.78rem;
      }

      .screen-top::before {
        content: "";
        width: 22px;
        height: 22px;
        margin-right: 9px;
        background: url("/icons/estmate-mark-light.svg") center / contain no-repeat;
        flex: 0 0 auto;
      }

      .screen-top > span:first-child {
        font-size: 0;
      }

      .screen-top > span:first-child::after {
        content: "estmate";
        color: #fff;
        font-size: 1rem;
        font-weight: 900;
        letter-spacing: -0.03em;
      }

      .screen-dots {
        display: none;
      }

      .screen-body {
        display: flex;
        flex-direction: column;
        min-height: 430px;
        overflow: hidden;
        border-radius: 0 0 19px 19px;
        background: #F7F6F3;
      }

      .screen-main {
        order: 1;
        min-height: 350px;
        padding: 16px 14px;
      }

      .screen-nav {
        order: 2;
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 0;
        margin-top: auto;
        padding: 0 0 8px;
        background: var(--navy);
        font-size: 0.52rem;
        text-align: center;
      }

      .screen-nav::before {
        content: none;
      }

      .screen-nav span {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 44px;
        padding: 6px 4px;
        border-left: 0;
        white-space: normal;
        margin: 0;
        border-radius: 0;
        font-size: 0.52rem;
      }

      .screen-nav span::after {
        content: none;
      }

      .screen-title {
        font-size: 0.98rem;
      }

      .screen-toolbar {
        gap: 6px;
      }

      .screen-pill,
      .screen-button {
        min-height: 28px;
        padding: 0 8px;
        font-size: 0.62rem;
      }

      .screen-map {
        min-height: 170px;
      }

      .screen-dropzone {
        min-height: 190px;
      }

      .screen-card figcaption {
        border-top: 0;
        padding: 12px 14px 14px;
        border-radius: 0 0 21px 21px;
      }

      .screen-card figcaption::before {
        content: "Mobiel: ";
      }

      html[data-doc-lang="fr"] .screen-card figcaption::before {
        content: "Mobile : ";
      }

      html[data-doc-lang="en"] .screen-card figcaption::before {
        content: "Mobile: ";
      }
    }

    @media (max-width: 560px) {
      .hero {
        padding-top: 44px;
      }

      .app-link {
        flex: 0 0 auto;
      }

      .lang-switcher {
        width: auto;
        justify-content: flex-start;
      }

      .lang-switcher button {
        flex: 0 0 auto;
      }

      .guide-tabs {
        display: grid;
        grid-template-columns: 1fr;
        width: 100%;
      }

      .panel {
        padding: 22px 18px;
      }

      .workflow-map,
      .first-success-list,
      .screen-metrics {
        grid-template-columns: 1fr;
      }
    }