:root {
      --brand-blue: #29a9e1;
      --brand-blue-dark: #078bd0;
      --navy: #062c43;
      --navy-deep: #03263b;
      --ink: #08283d;
      --muted: #426075;
      --line: #dbe7ef;
      --soft: #f5f8fa;
      --white: #ffffff;
      --gold: #d4af37;
      --max: 1280px;
      --pad-x: clamp(20px, 5vw, 56px);
      --section-y: clamp(54px, 7vw, 76px);
      --serif: Georgia, "Times New Roman", serif;
      --sans: Arial, Helvetica, sans-serif;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; overflow-x: hidden; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--white);
      font-family: var(--sans);
      overflow-x: hidden;
    }
    img, svg { display: block; max-width: 100%; height: auto; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }

    .shell {
      width: min(var(--max), 100%);
      margin: 0 auto;
      padding-inline: var(--pad-x);
    }
    .section { padding-block: var(--section-y); }
    .section--white { background: var(--white); }
    .section--soft { background: var(--soft); }
    .section--navy { background: var(--navy); color: var(--white); }
    .accent { color: var(--brand-blue); }

    h1, h2, h3 {
      margin: 0;
      font-family: var(--serif);
      font-weight: 500;
      letter-spacing: -.04em;
      line-height: .95;
    }
    h1 { font-size: clamp(44px, 7.8vw, 82px); }
    h2 { font-size: clamp(34px, 4.8vw, 60px); }
    h3 { font-size: clamp(26px, 3vw, 42px); }
    p { margin: 0; line-height: 1.55; }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 24px;
      border: 1px solid transparent;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 900;
      letter-spacing: .06em;
      text-transform: uppercase;
      cursor: pointer;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
      white-space: nowrap;
    }
    .btn:hover { transform: translateY(-1px); }
    .btn--blue { background: var(--brand-blue); color: var(--white); }
    .btn--blue:hover { background: var(--brand-blue-dark); }
    .btn--ghost { border-color: rgba(255,255,255,.75); color: var(--white); background: transparent; }
    .btn--outline { border-color: var(--brand-blue); color: var(--brand-blue); background: transparent; }

    .site-header {
      position: absolute;
      inset: 0 0 auto;
      z-index: 20;
      height: 78px;
      color: var(--white);
    }
    .nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 78px;
      gap: 28px;
    }
    .logo img { height: 44px; width: auto; object-fit: contain; }
    .nav-links {
      display: flex;
      gap: 26px;
      align-items: center;
      font-size: 12px;
      font-weight: 800;
      text-transform: uppercase;
    }
    .hamburger { display: none; width: 38px; height: 38px; border: 0; background: transparent; color: inherit; font-size: 30px; line-height: 1; }
    .nav-cta.btn--blue { background: #1678a8; }
    .nav-cta.btn--blue:hover { background: #126690; }

    .hero {
      position: relative;
      min-height: 650px;
      display: flex;
      align-items: center;
      overflow: hidden;
      color: var(--white);
      background: var(--navy);
    }
    .hero-photo {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center;
    }
    .hero::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(0,0,0,.72) 0%, rgba(0,0,0,.48) 34%, rgba(0,0,0,.14) 65%, rgba(0,0,0,.02) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      width: min(640px, 100%);
      padding-top: 70px;
    }
    .hero-content p {
      max-width: 520px;
      margin-top: 22px;
      font-size: 17px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-top: 32px;
    }

    .trust-bar {
      padding: 10px 0;
      background: var(--soft);
      border-block: 1px solid var(--line);
    }
    .trust-bar-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      max-width: 840px;
      margin: 0 auto;
    }
    .trust-card {
      display: grid;
      grid-template-columns: auto 1fr;
      align-items: center;
      gap: 12px;
      min-height: 54px;
      padding: 10px 14px;
      border: 1px solid rgba(41,169,225,.28);
      border-radius: 8px;
      background: linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 100%);
      box-shadow: 0 8px 18px rgba(3,38,59,.18);
    }
    .trust-icon {
      width: 32px;
      height: 32px;
      display: grid;
      place-items: center;
      color: var(--white);
      overflow: hidden;
    }
    .trust-icon svg {
      width: 32px;
      height: 32px;
      stroke: currentColor;
      fill: none;
      stroke-width: 2.4;
      stroke-linecap: round;
      stroke-linejoin: round;
    }
    .trust-copy strong, .trust-copy span {
      display: block;
      color: var(--white);
      font-weight: 900;
      text-transform: uppercase;
    }
    .trust-copy strong { font-size: 14px; line-height: 1.05; letter-spacing: .02em; }
    .trust-copy span { margin-top: 2px; font-size: 8px; line-height: 1.08; letter-spacing: .04em; }

    .brand-strip {
      background: var(--white);
      border-bottom: 1px solid var(--line);
    }
    .brand-strip .shell {
      display: flex;
      align-items: center;
      gap: 32px;
      min-height: 74px;
      overflow-x: auto;
      scrollbar-width: none;
      -webkit-overflow-scrolling: touch;
    }
    .brand-strip .shell::-webkit-scrollbar { display: none; }
    .brand-title {
      flex: 0 0 auto;
      font-size: 11px;
      font-weight: 900;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: var(--ink);
    }
    .brand-name {
      flex: 0 0 auto;
      min-width: max-content;
      font-family: var(--serif);
      font-size: 18px;
      color: #111;
      opacity: .92;
    }
    .brand-name.strong { font-family: var(--sans); font-weight: 900; font-size: 22px; letter-spacing: .02em; }

    #reviews {
      background: radial-gradient(circle at 10% 0%, rgba(41,169,225,.08), transparent 34%), linear-gradient(180deg, #f7f9fb 0%, #ffffff 100%);
      border-bottom: 1px solid var(--line);
    }
    .reviews-grid {
      display: grid;
      grid-template-columns: 360px minmax(0, 1fr);
      gap: 70px;
      align-items: center;
    }
    .review-heading p {
      max-width: 360px;
      margin-top: 18px;
      color: var(--muted);
    }
    .stars, .review-stars {
      color: var(--gold);
      letter-spacing: .14em;
      font-size: 18px;
      font-family: var(--sans);
    }
    .stars { margin-top: 18px; }
    .review-track {
      display: flex;
      gap: 24px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      padding: 10px 4px 18px;
      scrollbar-width: none;
      -webkit-overflow-scrolling: touch;
    }
    .review-track::-webkit-scrollbar { display: none; }
    .review-card {
      position: relative;
      flex: 0 0 360px;
      min-height: 230px;
      padding: 34px;
      scroll-snap-align: start;
      overflow: hidden;
      border: 1px solid #d2e2ec;
      border-radius: 16px;
      background: var(--white);
      cursor: default;
    }
    .review-card.featured { border: 2px solid var(--brand-blue); }
    .review-card::before {
      content: "“";
      position: absolute;
      top: 6px;
      left: 16px;
      font-family: var(--serif);
      font-size: 106px;
      line-height: 1;
      color: var(--brand-blue);
      opacity: .08;
    }
    .review-card p {
      position: relative;
      z-index: 1;
      margin-top: 18px;
      color: var(--ink);
      font-size: 16px;
      line-height: 1.65;
    }
    .review-card strong {
      position: relative;
      z-index: 1;
      display: block;
      margin-top: 22px;
      color: var(--navy);
      font-size: 15px;
      font-weight: 800;
    }
    .review-read-more {
      position: relative;
      z-index: 2;
      margin-top: 18px;
      padding: 0;
      border: 0;
      background: transparent;
      color: #1678a8;
      font-size: 12px;
      font-weight: 900;
      letter-spacing: .06em;
      text-transform: uppercase;
      cursor: pointer;
    }
    .review-read-more:hover { text-decoration: underline; }
    .dots { display: flex; justify-content: center; gap: 8px; margin-top: 10px; }
    .dot { width: 8px; height: 8px; border-radius: 50%; background: #cbd8e2; }
    .dot.active { background: var(--brand-blue); }
    .review-cta { margin-top: 20px; }

    .gallery-section {
      padding-top: clamp(50px, 6vw, 82px);
      padding-bottom: clamp(44px, 6vw, 70px);
      border-bottom: 1px solid var(--line);
    }
    .gallery-title-row {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 30px;
    }
    .gallery-title-row p {
      margin-top: 14px;
      max-width: 520px;
      color: var(--muted);
    }
    .gallery-scroll-hint { display: none; }
    .gallery-track {
      display: grid;
      grid-template-columns: 1.25fr 1fr 1fr 1fr;
      grid-template-rows: 220px 220px;
      gap: 24px;
      overflow: visible;
    }
    .gallery-item {
      width: 100%;
      height: 100%;
      padding: 0;
      border: 0;
      background: transparent;
      cursor: pointer;
    }
    .gallery-item:first-child {
      grid-column: span 2;
      grid-row: span 2;
    }
    .gallery-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .gallery-extra { display: none; }
    .gallery-track.gallery-open .gallery-extra { display: block; }
    .gallery-more-wrap {
      display: flex;
      justify-content: center;
      margin-top: 30px;
    }
    .gallery-more-wrap .btn { min-width: 280px; }
    .gallery-track.gallery-open + .gallery-more-wrap { display: none; }
    .gallery-cta-panel {
      display: none;
      margin-top: 36px;
      padding: 44px 34px;
      background: var(--navy);
      color: var(--white);
      text-align: center;
    }
    .gallery-track.gallery-open ~ .gallery-cta-panel { display: block; }
    .gallery-cta-panel p {
      max-width: 620px;
      margin: 14px auto 24px;
      color: rgba(255,255,255,.84);
    }

    .process-split {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      width: min(var(--max), 100%);
      margin: 0 auto;
      background: var(--navy);
      overflow: hidden;
    }
    .process-panel {
      padding: clamp(46px, 6vw, 78px) 44px clamp(46px, 6vw, 78px) var(--pad-x);
      color: var(--white);
      background: radial-gradient(circle at 8% 10%, rgba(41,169,225,.18), transparent 34%), linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 100%);
    }
    .process-intro {
      max-width: 500px;
      margin-top: 18px;
      color: rgba(255,255,255,.82);
      font-size: 16px;
    }
    .steps {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
      max-width: 620px;
      margin-top: 34px;
    }
    .step {
      display: grid;
      gap: 16px;
      padding: 16px;
      text-align: left;
      border: 1px solid rgba(255,255,255,.16);
      border-radius: 14px;
      background: rgba(255,255,255,.07);
      box-shadow: 0 16px 34px rgba(0,0,0,.18);
      backdrop-filter: blur(8px);
    }
    .step-icon {
      width: 54px;
      height: 54px;
      display: grid;
      place-items: center;
      border: 1px solid rgba(41,169,225,.75);
      border-radius: 12px;
      color: var(--white);
      background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-dark));
      box-shadow: 0 10px 20px rgba(41,169,225,.22);
    }
    .step-icon svg {
      width: 32px;
      height: 32px;
      stroke: currentColor;
      fill: none;
      stroke-width: 1.9;
      stroke-linecap: round;
      stroke-linejoin: round;
    }
    .step-number {
      margin-bottom: 5px;
      color: var(--brand-blue);
      font-size: 12px;
      font-weight: 900;
      letter-spacing: .12em;
      text-transform: uppercase;
    }
    .step h4 {
      margin: 0 0 5px;
      color: var(--white);
      font-size: 16px;
      line-height: 1.2;
    }
    .step p {
      color: rgba(255,255,255,.82);
      font-size: 13px;
      line-height: 1.45;
    }
    .process-cta { margin-top: 30px; text-align: left; }
    .process-image img {
      width: 100%;
      height: 100%;
      min-height: 590px;
      object-fit: cover;
    }

    .showroom-flow {
      padding: clamp(54px, 7vw, 76px) 0;
      background: var(--soft);
    }
    .showroom-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      width: min(var(--max), calc(100% - 40px));
      margin: 0 auto;
      overflow: hidden;
      border: 1px solid var(--line);
      background: var(--white);
    }
    .showroom-image img {
      width: 100%;
      height: 100%;
      min-height: 390px;
      object-fit: cover;
    }
    .showroom-copy {
      padding: clamp(38px, 6vw, 64px) var(--pad-x);
    }
    .showroom-copy p {
      max-width: 520px;
      margin-top: 22px;
      color: var(--muted);
    }
    .ticks {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px 28px;
      max-width: 520px;
      margin: 24px 0 28px;
    }
    .tick {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      font-size: 14px;
      line-height: 1.35;
    }
    .tick::before {
      content: "✓";
      display: inline-grid;
      place-items: center;
      flex: 0 0 20px;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      color: var(--brand-blue);
      background: #eaf7fc;
      font-weight: 900;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: 360px 1fr;
      gap: 64px;
      align-items: start;
    }
    .faq-copy p {
      max-width: 430px;
      margin-top: 18px;
      color: var(--muted);
    }
    .faq-list { display: grid; gap: 12px; }
    details {
      border: 1px solid var(--line);
      border-radius: 10px;
      background: var(--white);
    }
    summary {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 22px;
      list-style: none;
      cursor: pointer;
      font-weight: 800;
    }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; color: var(--brand-blue); font-size: 22px; line-height: 1; }
    details[open] summary::after { content: "−"; }
    details p { padding: 0 22px 20px; color: var(--muted); }

    .form-section {
      position: relative;
      overflow: hidden;
      background: var(--soft);
    }
    .form-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(245,248,250,.98), rgba(245,248,250,.92)), url("https://plumbitall.uk/img/hero.png");
      background-size: cover;
      background-position: center, center;
      background-repeat: no-repeat;
    }
    .form-wrap {
      position: relative;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      align-items: center;
    }
    .form-copy p {
      max-width: 420px;
      margin-top: 18px;
      color: var(--muted);
    }
    .lead-form {
      display: grid;
      gap: 14px;
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: rgba(255,255,255,.95);
    }
    .lead-form input, .lead-form select, .lead-form textarea {
      width: 100%;
      min-height: 48px;
      padding: 14px 15px;
      border: 1px solid #cbd9e4;
      border-radius: 6px;
      color: var(--ink);
      background: var(--white);
    }
    .lead-form textarea { min-height: 92px; resize: vertical; }
    .form-note { text-align: center; color: var(--muted); font-size: 13px; }

    .footer {
      padding: 38px 0;
      background: var(--navy);
      color: var(--white);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.4fr;
      gap: 26px;
    }
    .footer img { height: 42px; width: auto; margin-bottom: 14px; }
    .footer p, .footer a { color: rgba(255,255,255,.78); font-size: 14px; line-height: 1.6; }
    .footer h4, .footer .footer-heading {
      margin: 0 0 12px;
      color: var(--brand-blue);
      font-size: 12px;
      font-weight: 900;
      letter-spacing: .08em;
      text-transform: uppercase;
    }

    .lightbox, .review-modal {
      position: fixed;
      inset: 0;
      z-index: 100;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 22px;
      background: rgba(0,0,0,.9);
    }
    .review-modal { z-index: 120; background: rgba(3,38,59,.82); }
    .lightbox.open, .review-modal.open { display: flex; }
    .lightbox img { max-width: min(100%, 1200px); max-height: 88vh; object-fit: contain; }
    .lightbox-close, .review-modal-close {
      position: absolute;
      top: 16px;
      right: 18px;
      width: 44px;
      height: 44px;
      border: 0;
      border-radius: 50%;
      background: var(--white);
      color: var(--ink);
      font-size: 28px;
      cursor: pointer;
    }
    .review-modal-card {
      position: relative;
      width: min(760px, 100%);
      max-height: 86vh;
      overflow-y: auto;
      padding: clamp(28px, 5vw, 46px);
      border: 1px solid var(--line);
      border-radius: 14px;
      background: var(--white);
      color: var(--ink);
    }
    .review-modal-close {
      top: 14px;
      right: 14px;
      border: 1px solid var(--line);
      font-size: 26px;
    }
    .review-modal-stars {
      margin-bottom: 16px;
      color: var(--gold);
      letter-spacing: .1em;
      font-size: 20px;
    }
    .review-modal h3 { margin-bottom: 22px; }
    .review-modal p { color: #14354b; font-size: 17px; line-height: 1.7; white-space: pre-line; }

    .call-float {
      position: fixed;
      right: 18px;
      bottom: 18px;
      z-index: 50;
      display: none;
      place-items: center;
      width: 58px;
      height: 58px;
      border-radius: 50%;
      background: var(--brand-blue);
      color: var(--white);
      font-size: 25px;
      box-shadow: 0 10px 24px rgba(0,0,0,.16);
    }

    @media (max-width: 899px) {
      :root { --pad-x: 20px; --section-y: 48px; }

      .site-header {
        position: fixed;
        height: 62px;
        background: rgba(255,255,255,.96);
        border-bottom: 1px solid var(--line);
        color: var(--ink);
      }
      .nav { height: 62px; }
      .logo img { height: 36px; }
      .hamburger { display: block; }
      .nav-links, .nav-cta {
        position: fixed;
        left: 0;
        right: 0;
        display: none;
        background: var(--white);
        color: var(--ink);
      }
      .nav-links {
        top: 62px;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px 20px;
        border-bottom: 1px solid var(--line);
      }
      .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--line); }
      body.menu-open .nav-links { display: flex; }

      .hero {
        display: block;
        min-height: 0;
        padding-top: 62px;
      }
      .hero-photo {
        position: relative;
        width: 100%;
        height: min(72vh, 520px);
        min-height: 390px;
        object-position: center;
      }
      .hero::after { display: none; }
      .hero .shell { padding: 0; }
      .hero-content {
        width: 100%;
        padding: 26px 20px 30px;
        background: var(--navy);
      }
      .hero h1 { max-width: 390px; font-size: clamp(36px, 10vw, 48px); line-height: .98; }
      .hero-content p { max-width: 390px; margin-top: 14px; font-size: 15px; }
      .hero-actions { display: grid; grid-template-columns: 1fr; max-width: 390px; gap: 12px; margin-top: 22px; }
      .hero-actions .btn { width: 100%; min-height: 48px; }

      .trust-bar-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 7px;
        padding-inline: 8px;
      }
      .trust-card {
        grid-template-columns: 1fr;
        justify-items: center;
        min-height: 118px;
        padding: 10px 6px;
        text-align: center;
      }
      .trust-copy strong { font-size: 13px; }
      .trust-copy span { font-size: 9px; }

      .reviews-grid, .faq-grid, .form-wrap, .showroom-split, .process-split {
        grid-template-columns: 1fr;
      }
      .review-heading h2 { font-size: clamp(28px, 7.5vw, 38px); line-height: 1.05; }
      .reviews-grid > div {
        min-width: 0;
        max-width: 100%;
        overflow: hidden;
      }
      .review-track {
        gap: 16px;
        scroll-padding-left: 20px;
        padding-left: 20px;
        padding-right: 20px;
        margin-left: -20px;
        margin-right: -20px;
        width: calc(100% + 40px);
        max-width: calc(100% + 40px);
        box-sizing: border-box;
      }
      .review-card {
        flex: 0 0 82vw;
        max-width: 340px;
        min-width: 0;
        padding: 30px 22px;
      }

      .gallery-title-row {
        align-items: flex-start;
        flex-direction: column;
      }
      .gallery-scroll-hint {
        display: block;
        margin: 0 0 16px;
        text-align: center;
        color: var(--brand-blue);
        font-size: 12px;
        font-weight: 800;
        letter-spacing: .08em;
        text-transform: uppercase;
      }
      .gallery-track {
        display: flex;
        flex-direction: row;
        gap: 14px;
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 10px;
        padding-left: 0;
        padding-right: 0;
        grid-template-rows: none;
        grid-auto-flow: unset;
      }
      .gallery-item, .gallery-item:first-child {
        flex: 0 0 82vw;
        max-width: 340px;
        width: 82vw;
        height: 260px;
        grid-column: auto;
        grid-row: auto;
        scroll-snap-align: start;
      }
      .gallery-item img { width: 100%; height: 260px; object-fit: cover; }
      .gallery-extra { display: block; }
      .gallery-more-wrap, .gallery-cta-panel { display: none; }

      .steps { grid-template-columns: 1fr; }
      .process-panel { padding: 44px 20px; }
      .process-image img { min-height: 340px; }

      .ticks { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .call-float { display: grid; }
    }

/* ── Form validation feedback (PHP) ─────────────────────── */
.form-errors {
  padding: 14px 16px;
  border: 1px solid #e8b4b0;
  border-radius: 6px;
  background: #fdf0ef;
  color: #c0392b;
  font-size: 14px;
}
.form-errors strong { display: block; margin-bottom: 6px; }
.form-errors ul { margin: 0; padding-left: 18px; }
.form-errors li { margin-bottom: 4px; }