/* =========================================================
   SHARED CONFIGURATOR STYLES
   Single source of truth for the permanent (bolted-tank-configurator.html)
   and modular (modular-tank-configurator.html) configurator shells.
   Both pages link this file so layout/theme is maintained once.
   Page-specific and print-document (BOM/GA) styles remain inline.
   ========================================================= */
  :root {
    --navy: #1B2D4F;
    --navy-deep: #11203D;
    --navy-light: #2A4170;
    --navy-mid: #243B66;
    --orange: #E76F3C;
    --orange-deep: #C8552A;
    --orange-bright: #FF8348;
    --gold: #D4A437;
    --gold-light: #E8C265;
    --gold-bright: #E8BD4E;
    --ink: #0E1729;
    --paper: #FFFFFF;
    --paper-warm: #EDE6D3;
    --bone: #F7F5F1;
    --fog: #ECEAE4;
    --steel: #8A95A8;
    --steel-light: #C5CCD8;
    --line: #D9D5CC;
    --line-strong: rgba(27, 45, 79, 0.25);
    --muted: #5F6878;
    --success: #2F8F5C;
    --shadow-sm: 0 1px 2px rgba(14, 23, 41, 0.05), 0 1px 3px rgba(14, 23, 41, 0.08);
    --shadow-md: 0 4px 6px -1px rgba(14, 23, 41, 0.08), 0 2px 4px -1px rgba(14, 23, 41, 0.04);
    --shadow-lg: 0 10px 25px -3px rgba(14, 23, 41, 0.12), 0 4px 6px -2px rgba(14, 23, 41, 0.05);
    --shadow-xl: 0 25px 50px -12px rgba(14, 23, 41, 0.25);
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }

  html { scroll-behavior: smooth; overflow-x: clip; }
  body {
    font-family: 'Inter', -apple-system, sans-serif;
    color: var(--ink);
    background: var(--paper);
    line-height: 1.55;
    overflow-x: clip;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  h1, h2, h3, h4, .display {
    font-family: 'Archivo', sans-serif;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.05;
  }

  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; cursor: pointer; border: none; background: none; }

  /* =========================================================
     UTILITY BAR
     ========================================================= */
  .utility-bar {
    background: var(--navy-deep);
    color: rgba(255,255,255,0.85);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    padding: 0.5rem 0;
  }
  .utility-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
  }
  .utility-left, .utility-right {
    display: flex;
    gap: 1.5rem;
    align-items: center;
  }
  .utility-right a:hover { color: var(--gold-light); }
  .utility-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
  }
  .pulse-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: #4ade80;
    box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.7);
    animation: pulse 2s infinite;
  }
  @keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.7); }
    70% { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0); }
    100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
  }

  /* =========================================================
     HEADER
     ========================================================= */
  .container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 1.5rem;
  }

  header.main-nav {
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.96);
  }
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    gap: 2rem;
  }
  .logo {
    display: flex;
    align-items: center;
    gap: 0.85rem;
  }
  .logo img, .logo-img { height: 52px; width: auto; display: block; }
  .logo-tagline {
    font-family: 'Archivo', sans-serif;
    font-weight: 600;
    font-size: 0.7rem;
    color: var(--muted);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    padding-left: 0.85rem;
    border-left: 2px solid var(--line);
    line-height: 1.2;
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    font-size: 0.92rem;
    font-weight: 500;
  }
  .nav-links a {
    color: var(--ink);
    transition: color 0.15s ease;
    padding: 6px 0;
    position: relative;
  }
  .nav-links a:hover { color: var(--orange); }
  .nav-links a.active { color: var(--orange); font-weight: 600; }
  .nav-links a.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    height: 2px;
    background: var(--orange);
  }
  .nav-cta {
    background: var(--orange);
    color: white !important;
    padding: 0.6rem 1.2rem !important;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.88rem;
    transition: background 0.15s ease;
  }
  .nav-cta:hover { background: var(--orange-deep); }

  /* ======== SOLUTIONS DROPDOWN ======== */
  .nav-dropdown { position: relative; }
  .nav-dropdown > .nav-drop-toggle {
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: none;
    border: none;
    font: inherit;
    color: inherit;
    padding: 0;
    transition: color 0.15s;
  }
  .nav-dropdown > .nav-drop-toggle:hover { color: var(--orange); }
  .nav-dropdown .caret { width: 0.7rem; height: 0.7rem; transition: transform 0.2s; }
  .nav-dropdown:hover .caret,
  .nav-dropdown:focus-within .caret { transform: rotate(180deg); }
  .nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0.6rem;
    min-width: 255px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 10px 25px -3px rgba(14,23,41,0.12), 0 4px 6px -2px rgba(14,23,41,0.05);
    padding: 0.4rem;
    display: grid;
    gap: 0.1rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity 0.15s, transform 0.15s, visibility 0.15s;
    z-index: 200;
  }
  .nav-dropdown:hover .nav-dropdown-menu,
  .nav-dropdown.open .nav-dropdown-menu,
  .nav-dropdown:focus-within .nav-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-dropdown.open .caret { transform: rotate(180deg); }
  .nav-dropdown-menu a {
    display: block;
    padding: 0.55rem 0.85rem;
    border-radius: 5px;
    white-space: nowrap;
    color: var(--ink);
    font-weight: 500;
  }
  .nav-dropdown-menu a:hover { background: rgba(231,111,60,0.08); color: var(--orange); }
  @media (max-width: 900px) {
    .nav-dropdown { width: 100%; }
    .nav-dropdown-menu {
      position: static;
      opacity: 1;
      visibility: visible;
      transform: none;
      box-shadow: none;
      border: none;
      border-left: 2px solid var(--line);
      border-radius: 0;
      margin: 0.35rem 0 0.5rem 0.4rem;
      padding: 0 0 0 0.6rem;
      min-width: 0;
    }
  }
  .mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
  }
  .mobile-toggle svg { width: 24px; height: 24px; }

  /* Close (X) button + backdrop are mobile-only; hidden on desktop. */
  .nav-close { display: none; }
  .nav-scrim { display: none; }

  /* =========================================================
     HERO
     ========================================================= */
  .hero {
    position: relative;
    background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 60%, var(--navy-light) 100%);
    color: white;
    overflow: hidden;
    padding: 5rem 0 6rem;
  }
  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      radial-gradient(circle at 20% 30%, rgba(231,111,60,0.18), transparent 45%),
      radial-gradient(circle at 80% 70%, rgba(212,164,55,0.12), transparent 45%);
    pointer-events: none;
  }
  .hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    mask-image: linear-gradient(180deg, transparent 0%, black 30%, black 70%, transparent 100%);
  }
  .hero-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
  }
  @media (max-width: 960px) {
    .hero-grid { grid-template-columns: 1fr; gap: 3rem; }
    .hero { padding: 3.5rem 0 4rem; }
  }

  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(231,111,60,0.12);
    border: 1px solid rgba(231,111,60,0.3);
    color: var(--orange);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
  }
  .hero h1 {
    font-size: clamp(2.4rem, 5.2vw, 4.2rem);
    color: white;
    margin-bottom: 1.5rem;
  }
  .hero h1 .accent {
    color: var(--orange);
    font-style: italic;
    font-weight: 800;
  }
  .hero p.lead {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.78);
    margin-bottom: 2.5rem;
    max-width: 560px;
    line-height: 1.6;
  }
  .hero-ctas {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.95rem 1.75rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
  }
  .btn-primary {
    background: var(--orange);
    color: white;
    padding: 14px 28px;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.02em;
    border-radius: 4px;
    transition: background 0.15s ease, transform 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .btn-primary:hover { background: var(--orange-deep); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
  .btn-ghost {
    background: transparent;
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    padding: 14px 28px;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.02em;
    border-radius: 4px;
    transition: border-color 0.15s ease, background 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .btn-ghost:hover { background: rgba(255,255,255,0.08); border-color: white; }

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.12);
  }
  @media (max-width: 600px) { .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; } }
  .hero-stat .num {
    font-family: 'Archivo', sans-serif;
    font-weight: 800;
    font-size: 1.85rem;
    color: var(--gold);
    line-height: 1;
    margin-bottom: 0.35rem;
  }
  .hero-stat .label {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.65);
    letter-spacing: 0.05em;
  }

  /* HERO INSTANT QUOTE CARD */
  .quote-card {
    background: white;
    color: var(--ink);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    border-top: 4px solid var(--orange);
  }
  .quote-card h3 {
    font-size: 1.4rem;
    color: var(--navy);
    margin-bottom: 0.4rem;
  }
  .quote-card .sub {
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
  }
  .quote-card form { display: flex; flex-direction: column; gap: 0.9rem; }
  .quote-card label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--navy);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.35rem;
    display: block;
  }
  .quote-card input, .quote-card select, .quote-card textarea {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border: 1px solid var(--line);
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.15s, box-shadow 0.15s;
    background: var(--bone);
  }
  .quote-card input:focus, .quote-card select:focus, .quote-card textarea:focus {
    outline: none;
    border-color: var(--orange);
    box-shadow: 0 0 0 3px rgba(231,111,60,0.15);
    background: white;
  }
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
  @media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
  .quote-card .btn-primary { width: 100%; justify-content: center; }
  .secure-note {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--muted);
    margin-top: 0.5rem;
  }
  .secure-note svg { width: 14px; height: 14px; }

  .success-msg {
    background: rgba(47,143,92,0.1);
    border: 1px solid var(--success);
    color: var(--success);
    padding: 1rem;
    border-radius: 6px;
    text-align: center;
    margin-top: 1rem;
    display: none;
    font-weight: 500;
  }
  .success-msg.visible { display: block; }

  /* =========================================================
     SECTION RHYTHM
     ========================================================= */
  section {
    padding: 96px 32px;
  }
  .section-inner {
    max-width: 1400px;
    margin: 0 auto;
  }
  .section-head {
    margin-bottom: 56px;
    max-width: 800px;
  }
  .section-kicker {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--orange);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .section-kicker::before {
    content: '';
    width: 32px;
    height: 1px;
    background: var(--orange);
  }
  .section-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(32px, 4vw, 52px);
    line-height: 1.02;
    letter-spacing: -0.02em;
    color: var(--navy);
    margin-bottom: 16px;
  }
  .section-title .accent {
    color: var(--orange);
    font-style: italic;
    font-family: 'Newsreader', serif;
    font-weight: 500;
  }
  .section-sub {
    font-family: 'Newsreader', serif;
    font-size: 19px;
    line-height: 1.6;
    color: var(--navy-mid);
  }

  /* =========================================================
     TANK FAMILIES (CATEGORY GRID)
     ========================================================= */
  .families {
    background: var(--paper);
  }
  .families-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .families-grid.four-up {
    grid-template-columns: repeat(4, 1fr);
  }
  .families-grid.two-up {
    grid-template-columns: repeat(2, 1fr);
    max-width: 980px;
    margin: 0 auto;
  }
  .family-card {
    background: white;
    border: 1px solid var(--line);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: border-color 0.2s ease, transform 0.2s ease;
    position: relative;
  }
  .family-card:hover {
    border-color: var(--orange);
    transform: translateY(-2px);
  }
  .family-card .badge {
    position: absolute;
    top: 24px;
    right: 24px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--navy);
    background: var(--paper-warm);
    padding: 4px 8px;
    border-radius: 2px;
  }
  .family-card .icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--navy);
    color: var(--gold);
    margin-bottom: 4px;
  }
  .family-card h3 {
    font-family: 'Archivo Black', sans-serif;
    font-size: 22px;
    color: var(--navy);
    letter-spacing: -0.015em;
    line-height: 1.1;
  }
  .family-card .standard {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--orange);
  }
  .family-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--navy-mid);
  }
  .family-card .specs {
    list-style: none;
    padding: 16px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    font-size: 13px;
    color: var(--navy);
  }
  .family-card .specs li {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
  }
  .family-card .specs li .key {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--steel);
  }
  .family-card .specs li .val { font-weight: 600; }
  .family-card .card-cta {
    margin-top: auto;
    color: var(--orange);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 0 0;
  }

  /* =========================================================
     CONFIGURATOR
     ========================================================= */
  .configurator {
    background: var(--navy-deep);
    color: var(--paper);
    position: relative;
    overflow: hidden;
  }
  .configurator::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(245, 241, 232, 0.025) 1px, transparent 1px),
      linear-gradient(90deg, rgba(245, 241, 232, 0.025) 1px, transparent 1px);
    background-size: 64px 64px;
    pointer-events: none;
  }
  .configurator .section-title { color: var(--paper); }
  .configurator .section-sub { color: var(--steel-light); }

  .config-layout {
    display: grid;
    grid-template-columns: 1fr 480px;
    gap: 40px;
    align-items: flex-start;
    position: relative;
  }

  .config-form {
    background: rgba(245, 241, 232, 0.04);
    border: 1px solid rgba(245, 241, 232, 0.12);
    padding: 32px;
  }
  .config-step {
    margin-bottom: 32px;
  }
  .config-step:last-child { margin-bottom: 0; }
  .step-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(245, 241, 232, 0.12);
  }
  .step-num {
    width: 28px;
    height: 28px;
    background: var(--orange);
    color: var(--paper);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 700;
    border-radius: 2px;
  }
  .step-title {
    font-family: 'Archivo', sans-serif;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--paper);
  }
  .step-sub {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gold);
    margin-left: auto;
  }
  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 12px;
  }
  .form-field { display: flex; flex-direction: column; }
  .form-field.full { grid-column: 1 / -1; }
  .form-field label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--steel-light);
    margin-bottom: 6px;
  }
  .form-field input,
  .form-field select,
  .form-field textarea {
    background: var(--navy-deep);
    border: 1px solid rgba(245, 241, 232, 0.18);
    color: var(--paper);
    padding: 10px 12px;
    font-family: 'Archivo', sans-serif;
    font-size: 14px;
    border-radius: 2px;
    transition: border-color 0.15s ease;
  }
  .form-field input:focus,
  .form-field select:focus,
  .form-field textarea:focus {
    outline: none;
    border-color: var(--orange);
  }
  .form-field textarea { min-height: 84px; resize: vertical; }

  .pill-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 4px;
  }
  .pill {
    background: transparent;
    border: 1px solid rgba(245, 241, 232, 0.22);
    color: var(--steel-light);
    padding: 8px 14px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    letter-spacing: 0.04em;
    border-radius: 2px;
    transition: all 0.15s ease;
  }
  .pill:hover {
    border-color: var(--gold);
    color: var(--paper);
  }
  .pill.active {
    background: var(--orange);
    border-color: var(--orange);
    color: var(--paper);
  }

  .check-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .check-pill {
    background: transparent;
    border: 1px solid rgba(245, 241, 232, 0.22);
    color: var(--steel-light);
    padding: 10px 14px;
    font-size: 13px;
    border-radius: 2px;
    text-align: left;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .check-pill::before {
    content: '';
    width: 14px;
    height: 14px;
    border: 1px solid rgba(245, 241, 232, 0.4);
    border-radius: 2px;
    flex-shrink: 0;
    transition: all 0.15s ease;
  }
  .check-pill.active {
    border-color: var(--orange);
    color: var(--paper);
    background: rgba(231, 111, 60, 0.08);
  }
  .check-pill.active::before {
    background: var(--orange);
    border-color: var(--orange);
    box-shadow: inset 0 0 0 3px var(--navy-deep);
  }

  /* SUMMARY PANEL */
  .config-summary {
    background: var(--paper);
    color: var(--ink);
    padding: 32px;
    position: sticky;
    top: 88px;
    border-top: 4px solid var(--orange);
  }
  .summary-kicker {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--orange);
    margin-bottom: 12px;
  }
  .summary-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 24px;
    letter-spacing: -0.015em;
    color: var(--navy);
    margin-bottom: 20px;
  }
  .summary-vol {
    font-family: 'Archivo Black', sans-serif;
    font-size: 44px;
    color: var(--orange);
    line-height: 1;
    margin-bottom: 4px;
    letter-spacing: -0.025em;
  }
  .summary-vol-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--steel);
    margin-bottom: 24px;
  }
  .summary-rows {
    border-top: 1px solid var(--line);
    margin-bottom: 24px;
  }
  .summary-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
  }
  .summary-row .key {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--steel);
  }
  .summary-row .val {
    color: var(--navy);
    font-weight: 600;
    text-align: right;
    max-width: 60%;
  }
  /* PRICE LADDER */
  .price-ladder {
    border-top: 1px solid var(--line);
    margin-bottom: 20px;
  }
  .price-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 10px 0;
    border-bottom: 1px dashed var(--line);
    font-size: 13px;
  }
  .price-row .price-key {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--steel);
  }
  .price-row .price-key small {
    display: block;
    font-family: 'Archivo', sans-serif;
    font-size: 11px;
    letter-spacing: 0;
    text-transform: none;
    color: var(--navy-mid);
    margin-top: 2px;
    font-weight: 500;
  }
  /* Accessory names listed inside the summary's Accessories line item — each on
     its own line and in full navy so they're easy to read, not a faint count. */
  .price-row .price-key small .price-acc-item {
    display: block;
    color: var(--navy);
    font-weight: 600;
    line-height: 1.5;
  }
  .price-row .price-key small .price-acc-item em {
    font-style: normal;
    color: var(--orange);
    font-weight: 700;
  }
  .price-row .price-val {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    color: var(--navy);
    font-weight: 700;
    white-space: nowrap;
  }
  /* PRICE TOTAL */
  .price-total {
    background: var(--navy);
    color: var(--paper);
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 2px;
  }
  .price-total-key {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 6px;
  }
  .price-total-val {
    font-family: 'Archivo Black', sans-serif;
    font-size: 38px;
    color: var(--paper);
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
  }
  .price-total-sub {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.06em;
    color: var(--steel-light);
  }
  .summary-cta {
    width: 100%;
    background: var(--orange);
    color: var(--paper);
    padding: 14px;
    font-weight: 700;
    font-size: 15px;
    letter-spacing: 0.02em;
    border-radius: 2px;
    transition: background 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }
  .summary-cta:hover { background: var(--orange-bright); }
  /* Secondary download row — printable BOM (budget pricing) + GA drawing */
  .summary-downloads {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 10px;
  }
  .dl-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    width: 100%;
    padding: 11px 10px;
    background: var(--paper);
    color: var(--navy);
    border: 1px solid var(--line-strong);
    border-radius: 2px;
    font-weight: 600;
    font-size: 12.5px;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
  }
  .dl-btn svg { width: 15px; height: 15px; flex: none; }
  .dl-btn:hover { border-color: var(--orange); color: var(--orange-deep); background: var(--bone); }
  .summary-downloads-note {
    margin-top: 8px;
    font-size: 10.5px;
    color: var(--steel);
    line-height: 1.5;
  }
  @media (max-width: 480px) {
    .summary-downloads { grid-template-columns: 1fr; }
  }
  .summary-note {
    margin-top: 16px;
    font-size: 11px;
    color: var(--steel);
    line-height: 1.5;
  }

  /* LIVE GENERAL-ARRANGEMENT DRAWING */
  .ga-drawing {
    background: var(--navy-deep);
    border: 1px solid rgba(212, 164, 55, 0.28);
    border-radius: 2px;
    padding: 14px 14px 10px;
    margin-bottom: 24px;
  }
  .ga-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
  }
  .ga-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gold-light);
  }
  .ga-stamp {
    font-family: 'JetBrains Mono', monospace;
    font-size: 8px;
    letter-spacing: 0.08em;
    color: var(--steel);
    border: 1px solid rgba(138, 149, 168, 0.4);
    padding: 2px 5px;
    border-radius: 2px;
    white-space: nowrap;
  }
  .ga-svg {
    display: block;
    width: 100%;
    height: auto;
    background:
      linear-gradient(rgba(197, 204, 216, 0.06) 1px, transparent 1px) 0 0 / 100% 20px,
      linear-gradient(90deg, rgba(197, 204, 216, 0.06) 1px, transparent 1px) 0 0 / 20px 100%,
      var(--navy);
    border: 1px solid rgba(197, 204, 216, 0.12);
  }
  /* Blueprint line work */
  .ga-svg .ga-shell { fill: rgba(212, 164, 55, 0.05); stroke: var(--gold-light); stroke-width: 1.6; }
  .ga-svg .ga-roof  { fill: rgba(231, 111, 60, 0.10); stroke: var(--orange-bright); stroke-width: 1.6; }
  .ga-svg .ga-found { fill: rgba(197, 204, 216, 0.10); stroke: var(--steel-light); stroke-width: 1.4; }
  .ga-svg .ga-grade { stroke: var(--steel-light); stroke-width: 1; stroke-dasharray: 5 4; }
  .ga-svg .ga-nozzle { fill: var(--paper); stroke: var(--gold-light); stroke-width: 1; }
  .ga-svg .ga-dim { stroke: var(--steel); stroke-width: 0.8; }
  .ga-svg .ga-dim-txt { fill: var(--steel-light); font-family: 'JetBrains Mono', monospace; font-size: 9px; }
  .ga-svg .ga-center { stroke: rgba(197, 204, 216, 0.35); stroke-width: 0.7; stroke-dasharray: 6 3 2 3; }
  .ga-svg .ga-label { fill: var(--gold-light); font-family: 'JetBrains Mono', monospace; font-size: 8px; letter-spacing: 0.04em; }
  /* "Being built out" draw-in animation, re-triggered on each config change */
  .ga-svg .ga-draw {
    stroke-dasharray: var(--len, 1200);
    stroke-dashoffset: var(--len, 1200);
    animation: gaDraw 0.7s ease forwards;
  }
  @keyframes gaDraw { to { stroke-dashoffset: 0; } }
  .ga-svg .ga-fade { opacity: 0; animation: gaFade 0.5s ease 0.45s forwards; }
  @keyframes gaFade { to { opacity: 1; } }
  @media (prefers-reduced-motion: reduce) {
    .ga-svg .ga-draw { animation: none; stroke-dashoffset: 0; }
    .ga-svg .ga-fade { animation: none; opacity: 1; }
  }
  .ga-foot {
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    letter-spacing: 0.04em;
    color: var(--steel);
    margin-top: 8px;
    line-height: 1.5;
  }

  /* LIVE 3-D TANK MODEL VIEWPORT */
  .ga-3d {
    position: relative;
    width: 100%;
    height: 320px;
    border: 1px solid rgba(197, 204, 216, 0.12);
    border-radius: 2px;
    overflow: hidden;
    background:
      radial-gradient(120% 120% at 50% 18%, rgba(212, 164, 55, 0.10), transparent 60%),
      linear-gradient(180deg, #15233d 0%, #0f1a30 100%);
    touch-action: none;
  }
  .ga-3d canvas { display: block; width: 100% !important; height: 100% !important; }
  .ga-3d-status {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--steel);
    pointer-events: none;
  }
  .ga-3d-hint {
    position: absolute;
    left: 10px;
    bottom: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 8px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(197, 204, 216, 0.55);
    pointer-events: none;
  }
  /* The blueprint SVG is retained only for the downloadable GA deliverable. */
  .ga-svg--export { display: none; }
  /* If WebGL / Three.js is unavailable, fall back to the 2-D blueprint. */
  .ga-drawing.ga-3d-failed .ga-3d { display: none; }
  .ga-drawing.ga-3d-failed .ga-svg--export { display: block; }

  /* INLINE ACCESSORIES PICKER (INSIDE CONFIGURATOR) */
  .acc-picker-inline {    background: rgba(245, 241, 232, 0.04);
    border: 1px solid rgba(245, 241, 232, 0.08);
    padding: 16px;
    border-radius: 2px;
  }
  .acc-picker-inline .acc-picker-row {
    display: grid;
    grid-template-columns: 1fr 90px auto;
    gap: 8px;
    margin-bottom: 12px;
  }
  .acc-picker-inline select {
    background: var(--navy-deep);
    border: 1px solid rgba(245, 241, 232, 0.22);
    color: var(--paper);
    padding: 11px 14px;
    font-family: 'Archivo', sans-serif;
    font-size: 14px;
    border-radius: 2px;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23E76F3C' stroke-width='2'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 38px;
    transition: border-color 0.15s ease;
  }
  .acc-picker-inline select:focus {
    outline: none;
    border-color: var(--orange);
  }
  .acc-picker-inline select optgroup {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--steel-light);
    font-weight: 600;
    font-style: normal;
    background: var(--navy-deep);
  }
  .acc-picker-inline select option {
    font-family: 'Archivo', sans-serif;
    font-size: 13px;
    font-weight: 400;
    color: var(--paper);
    background: var(--navy-deep);
    padding: 4px;
  }
  .acc-picker-inline input[type="number"] {
    background: var(--navy-deep);
    border: 1px solid rgba(245, 241, 232, 0.22);
    color: var(--paper);
    padding: 11px 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    border-radius: 2px;
  }
  .acc-picker-inline input[type="number"]:focus {
    outline: none;
    border-color: var(--orange);
  }
  .acc-picker-inline .acc-picker-add {
    background: var(--orange);
    color: var(--paper);
    padding: 11px 18px;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.04em;
    border-radius: 2px;
    transition: background 0.15s ease;
    white-space: nowrap;
  }
  .acc-picker-inline .acc-picker-add:hover { background: var(--orange-bright); }
  .acc-picker-inline .acc-picker-add:disabled {
    background: rgba(245, 241, 232, 0.1);
    color: var(--steel);
    cursor: not-allowed;
  }
  .acc-picker-inline .acc-desc {
    padding: 10px 14px;
    background: rgba(231, 111, 60, 0.08);
    border-left: 2px solid var(--orange);
    font-size: 12px;
    line-height: 1.5;
    color: var(--steel-light);
    margin-bottom: 14px;
    min-height: 38px;
    display: flex;
    align-items: center;
    border-radius: 2px;
  }
  .acc-picker-inline .acc-desc.empty {
    color: var(--steel);
    font-style: italic;
    border-left-color: rgba(245, 241, 232, 0.2);
    background: rgba(245, 241, 232, 0.03);
  }
  .acc-picker-inline .acc-added-list {
    padding-top: 14px;
    border-top: 1px solid rgba(245, 241, 232, 0.1);
  }
  .acc-picker-inline .acc-added-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 10px;
  }
  .acc-picker-inline .acc-added-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--steel-light);
  }
  .acc-picker-inline .acc-added-count {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--orange);
    font-weight: 700;
  }
  .acc-picker-inline .acc-added-row {
    display: grid;
    grid-template-columns: 1fr auto auto auto auto;
    gap: 10px;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(245, 241, 232, 0.06);
    font-size: 13px;
  }
  .acc-picker-inline .acc-added-row:last-child { border-bottom: none; }
  .acc-picker-inline .acc-added-row .acc-row-name { color: var(--paper); font-weight: 600; font-size: 13px; }
  .acc-picker-inline .acc-row-price {
    display: block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--gold-light);
    margin-top: 2px;
  }
  .acc-picker-inline .acc-row-qty {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--gold);
    background: rgba(212, 164, 55, 0.1);
    padding: 3px 8px;
    border-radius: 2px;
  }
  .acc-picker-inline .acc-row-price {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--paper);
    font-weight: 700;
    white-space: nowrap;
    min-width: 70px;
    text-align: right;
  }
  .acc-picker-inline .acc-row-edit,
  .acc-picker-inline .acc-row-remove {
    background: transparent;
    color: var(--steel-light);
    padding: 4px 8px;
    font-size: 11px;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: 2px;
    transition: color 0.15s ease;
  }
  .acc-picker-inline .acc-row-edit:hover { color: var(--orange); }
  .acc-picker-inline .acc-row-remove:hover { color: #E74C3C; }
  .acc-picker-inline .acc-empty-state {
    padding: 14px;
    text-align: center;
    color: var(--steel);
    font-family: 'Newsreader', serif;
    font-style: italic;
    font-size: 13px;
  }

  /* =========================================================
     ACCESSORIES (DROPDOWN PICKER)
     ========================================================= */
  .accessories {
    background: var(--paper-warm);
  }
  .acc-picker {
    background: white;
    border: 1px solid var(--line);
    border-top: 4px solid var(--orange);
    padding: 32px;
    max-width: 900px;
    margin: 0 auto;
  }
  .acc-picker-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--orange);
    margin-bottom: 10px;
  }
  .acc-picker-row {
    display: grid;
    grid-template-columns: 1fr 120px auto;
    gap: 12px;
    align-items: stretch;
  }
  .acc-picker-row select {
    background: var(--paper);
    border: 1px solid var(--line-strong);
    color: var(--navy);
    padding: 14px 16px;
    font-family: 'Archivo', sans-serif;
    font-size: 15px;
    font-weight: 500;
    border-radius: 2px;
    transition: border-color 0.15s ease;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23E76F3C' stroke-width='2'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 44px;
  }
  .acc-picker-row select:focus {
    outline: none;
    border-color: var(--orange);
  }
  .acc-picker-row select optgroup {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--steel);
    font-weight: 600;
    font-style: normal;
  }
  .acc-picker-row select option {
    font-family: 'Archivo', sans-serif;
    font-size: 14px;
    font-weight: 400;
    color: var(--navy);
    padding: 6px;
  }
  .acc-picker-row input[type="number"] {
    background: var(--paper);
    border: 1px solid var(--line-strong);
    color: var(--navy);
    padding: 14px 12px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    border-radius: 2px;
    transition: border-color 0.15s ease;
  }
  .acc-picker-row input[type="number"]:focus {
    outline: none;
    border-color: var(--orange);
  }
  .acc-picker-add {
    background: var(--orange);
    color: var(--paper);
    padding: 14px 24px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.04em;
    border-radius: 2px;
    transition: background 0.15s ease, transform 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
  }
  .acc-picker-add:hover {
    background: var(--orange-bright);
    transform: translateY(-1px);
  }
  .acc-picker-add:disabled {
    background: var(--steel-light);
    color: var(--steel);
    cursor: not-allowed;
    transform: none;
  }
  .acc-desc {
    margin-top: 14px;
    padding: 14px 16px;
    background: var(--paper-warm);
    border-left: 2px solid var(--orange);
    font-size: 13px;
    line-height: 1.5;
    color: var(--navy-mid);
    min-height: 46px;
    display: flex;
    align-items: center;
  }
  .acc-desc.empty { color: var(--steel); font-style: italic; }

  /* Added accessories list */
  .acc-added-list {
    margin-top: 28px;
    border-top: 1px solid var(--line);
    padding-top: 24px;
  }
  .acc-added-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 14px;
  }
  .acc-added-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--navy);
  }
  .acc-added-count {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--orange);
    font-weight: 700;
  }
  .acc-added-row {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    gap: 12px;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
  }
  .acc-added-row:last-child { border-bottom: none; }
  .acc-added-row .acc-row-name { color: var(--navy); font-weight: 600; }
  .acc-added-row .acc-row-qty {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--steel);
    background: var(--paper-warm);
    padding: 4px 10px;
    border-radius: 2px;
  }
  .acc-added-row .acc-row-edit,
  .acc-added-row .acc-row-remove {
    background: transparent;
    color: var(--steel);
    padding: 6px 10px;
    font-size: 12px;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: 2px;
    transition: all 0.15s ease;
  }
  .acc-added-row .acc-row-edit:hover { color: var(--orange); }
  .acc-added-row .acc-row-remove:hover { color: #C0392B; }
  .acc-empty-state {
    padding: 24px;
    text-align: center;
    color: var(--steel);
    font-family: 'Newsreader', serif;
    font-style: italic;
    font-size: 15px;
  }

  /* =========================================================
     COATINGS
     ========================================================= */
  .coatings { background: var(--paper); }
  .coatings-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .coatings-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .coatings-grid-4 { grid-template-columns: repeat(4, 1fr); }
  .coatings-grid-5 { grid-template-columns: repeat(5, 1fr); }
  .coating-card {
    background: white;
    border: 1px solid var(--line);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .coating-card .coat-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--orange);
  }
  .coating-card h4 {
    font-family: 'Archivo Black', sans-serif;
    font-size: 18px;
    color: var(--navy);
    line-height: 1.1;
    letter-spacing: -0.01em;
  }
  .coating-card p {
    font-size: 13px;
    line-height: 1.5;
    color: var(--navy-mid);
  }
  .coating-card ul {
    list-style: none;
    border-top: 1px solid var(--line);
    padding-top: 12px;
    font-size: 12px;
    color: var(--navy);
  }
  .coating-card ul li {
    padding: 3px 0;
    display: flex;
    gap: 8px;
  }
  .coating-card ul li::before {
    content: '—';
    color: var(--orange);
  }

  /* =========================================================
     PROJECT GALLERY
     ========================================================= */
  .project-gallery {
    background: var(--paper-warm);
  }
  .gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto auto;
    gap: 16px;
  }
  .gallery-grid .gallery-item:first-child {
    grid-column: 1 / -1;
  }
  .gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 2px;
  }
  .gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
  }
  .gallery-item:first-child img {
    max-height: 480px;
    min-height: 240px;
  }
  .gallery-item:not(:first-child) img {
    height: 320px;
  }
  .gallery-item:hover img {
    transform: scale(1.03);
  }
  .gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 24px;
    background: linear-gradient(to top, rgba(15, 27, 51, 0.85), transparent);
    color: var(--paper);
  }
  .gallery-caption .caption-title {
    font-family: 'Archivo', sans-serif;
    font-weight: 700;
    font-size: 15px;
    margin-bottom: 2px;
  }
  .gallery-caption .caption-detail {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--gold-bright);
  }

  /* =========================================================
     COMPLIANCE BAND
     ========================================================= */
  .compliance {
    background: var(--navy);
    color: var(--paper);
    padding: 64px 32px;
  }
  .compliance-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
  }
  .comp-card {
    border-left: 2px solid var(--orange);
    padding: 8px 0 8px 20px;
  }
  .comp-card .code {
    font-family: 'Archivo Black', sans-serif;
    font-size: 22px;
    color: var(--gold);
    letter-spacing: -0.01em;
    margin-bottom: 4px;
  }
  .comp-card .desc {
    font-size: 12px;
    line-height: 1.4;
    color: var(--steel-light);
  }

  /* =========================================================
     FAQ
     ========================================================= */
  .faq { background: var(--paper-warm); }
  .faq-list {
    max-width: 900px;
    margin: 0 auto;
  }
  .faq-item {
    border-bottom: 1px solid var(--line-strong);
  }
  .faq-q {
    width: 100%;
    text-align: left;
    padding: 22px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    font-family: 'Archivo', sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--navy);
  }
  .faq-q .chev {
    font-family: 'JetBrains Mono', monospace;
    color: var(--orange);
    transition: transform 0.2s ease;
    flex-shrink: 0;
  }
  .faq-item.open .faq-q .chev { transform: rotate(45deg); }
  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    font-family: 'Newsreader', serif;
    font-size: 17px;
    line-height: 1.65;
    color: var(--navy-mid);
  }
  .faq-item.open .faq-a {
    max-height: 400px;
    padding-bottom: 22px;
  }

  /* =========================================================
     FINAL CTA
     ========================================================= */
  .cta-band {
    background:
      linear-gradient(135deg, rgba(15, 27, 51, 0.95) 0%, rgba(36, 59, 102, 0.92) 100%),
      radial-gradient(ellipse at bottom right, rgba(212, 164, 55, 0.3), transparent 60%),
      var(--navy-deep);
    color: var(--paper);
    text-align: center;
  }
  .cta-band .section-inner { max-width: 800px; }
  .cta-band .section-title { color: var(--paper); }
  .cta-band .section-sub { color: var(--steel-light); margin-bottom: 32px; }
  .cta-row {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
  }

  /* =========================================================
     FOOTER
     ========================================================= */
  footer.site-footer {
    background: var(--navy-deep);
    color: var(--steel-light);
    padding: 64px 32px 32px;
  }
  .footer-inner {
    max-width: 1400px;
    margin: 0 auto;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(245, 241, 232, 0.1);
  }
  .footer-brand p {
    font-size: 13px;
    line-height: 1.6;
    margin-top: 16px;
    color: var(--steel);
  }
  .footer-col h5 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 16px;
  }
  .footer-col ul { list-style: none; }
  .footer-col ul li { margin-bottom: 8px; }
  .footer-col a { font-size: 14px; transition: color 0.15s ease; }
  .footer-col a:hover { color: var(--orange-bright); }
  .footer-bottom {
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--steel);
  }

  /* =========================================================
     STICKY CART BUTTON
     ========================================================= */
  .cart-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--navy);
    color: var(--paper);
    padding: 14px 18px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
    z-index: 70;
    transition: transform 0.15s ease, background 0.15s ease;
  }
  .cart-btn:hover {
    background: var(--orange);
    transform: translateY(-2px);
  }
  .cart-btn .count {
    background: var(--orange);
    color: var(--paper);
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-family: 'JetBrains Mono', monospace;
  }
  .cart-btn.has-orange .count { background: var(--gold); color: var(--navy); }

  /* =========================================================
     MODAL
     ========================================================= */
  .modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(10, 18, 36, 0.75);
    backdrop-filter: blur(4px);
    z-index: 200;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding: 32px 16px;
    overflow-y: auto;
  }
  .modal-backdrop.open { display: flex; }
  .modal {
    background: var(--paper);
    max-width: 900px;
    width: 100%;
    border-top: 4px solid var(--orange);
    padding: 32px;
  }
  .modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 8px;
  }
  .modal-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 26px;
    color: var(--navy);
    letter-spacing: -0.015em;
  }
  .modal-close {
    background: var(--paper-warm);
    color: var(--navy);
    width: 36px;
    height: 36px;
    border-radius: 2px;
    font-size: 18px;
    transition: background 0.15s ease;
  }
  .modal-close:hover { background: var(--orange); color: var(--paper); }
  .modal-sub {
    font-family: 'Newsreader', serif;
    font-size: 16px;
    color: var(--navy-mid);
    margin-bottom: 24px;
    line-height: 1.5;
  }
  .quote-meta {
    background: var(--paper-warm);
    padding: 16px;
    margin-bottom: 24px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    font-size: 13px;
  }
  .quote-meta .meta-block { display: flex; flex-direction: column; gap: 2px; }
  .quote-meta .meta-key {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--steel);
  }
  .quote-meta .meta-val { color: var(--navy); font-weight: 600; }

  .cart-items { margin-bottom: 24px; }
  .empty-cart {
    text-align: center;
    padding: 48px 24px;
    color: var(--steel);
    font-family: 'Newsreader', serif;
    font-style: italic;
    font-size: 16px;
  }
  .empty-cart a { color: var(--orange); font-weight: 600; }
  .cart-item {
    border-bottom: 1px solid var(--line);
    padding: 14px 0;
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    gap: 16px;
    align-items: center;
  }
  .cart-item .item-name {
    font-size: 14px;
    color: var(--navy);
    font-weight: 600;
  }
  .cart-item .item-spec {
    font-size: 12px;
    color: var(--steel);
    margin-top: 2px;
    line-height: 1.4;
  }
  .cart-item .item-tag {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 2px 6px;
    border-radius: 2px;
    margin-right: 6px;
  }
  .tag-tank { background: var(--gold); color: var(--navy); }
  .tag-metering { background: #4A6FA5; color: var(--paper); }
  .tag-pumps { background: var(--orange); color: var(--paper); }
  .tag-inquiry { background: var(--steel-light); color: var(--navy); }
  .qty-control {
    display: flex;
    align-items: center;
    gap: 4px;
  }
  .qty-control button {
    width: 28px;
    height: 28px;
    background: var(--paper-warm);
    color: var(--navy);
    font-weight: 700;
    border-radius: 2px;
    transition: background 0.15s ease;
  }
  .qty-control button:hover { background: var(--orange); color: var(--paper); }
  .qty-control input {
    width: 44px;
    text-align: center;
    border: 1px solid var(--line);
    padding: 5px 2px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    border-radius: 2px;
  }
  .item-price {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--navy);
    text-align: right;
    min-width: 100px;
  }
  .item-price.tbd { color: var(--steel); font-style: italic; }
  .item-remove {
    width: 28px;
    height: 28px;
    background: transparent;
    color: var(--steel);
    border-radius: 2px;
    transition: all 0.15s ease;
  }
  .item-remove:hover { background: #C0392B; color: var(--paper); }

  .cart-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 2px solid var(--navy);
    flex-wrap: wrap;
  }
  .cart-total {
    font-family: 'Archivo Black', sans-serif;
    font-size: 22px;
    color: var(--navy);
  }
  .cart-total small {
    display: block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--steel);
    font-weight: normal;
    margin-top: 2px;
  }
  .cart-buttons { display: flex; gap: 8px; flex-wrap: wrap; }
  .cart-buttons button {
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 600;
    border-radius: 2px;
    border: 1px solid transparent;
    transition: all 0.15s ease;
  }
  .btn-clear { background: transparent; color: var(--steel); border-color: var(--steel-light); }
  .btn-clear:hover { color: var(--navy); border-color: var(--navy); }
  .btn-print { background: var(--navy); color: var(--paper); }
  .btn-print:hover { background: var(--navy-mid); }
  .btn-submit { background: var(--orange); color: var(--paper); }
  .btn-submit:hover { background: var(--orange-bright); }

  /* =========================================================
     RESPONSIVE
     ========================================================= */
  @media (max-width: 980px) {
    .logo-tagline { display: none; }
    .logo-img { height: 44px; }
    .nav-links {
      display: flex;
      position: fixed;
      top: 0;
      right: 0;
      bottom: 0;
      width: min(360px, 86vw);
      flex-direction: column;
      align-items: stretch;
      gap: 0.15rem;
      background: var(--paper);
      padding: 4.75rem 1.5rem 2rem;
      box-shadow: -14px 0 44px rgba(14,23,41,0.24);
      transform: translateX(100%);
      transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      overflow-y: auto;
      -webkit-overflow-scrolling: touch;
      z-index: 1200;
    }
    .nav-links.open { transform: translateX(0); }
    .nav-links > a,
    .nav-dropdown > .nav-drop-toggle {
      font-size: 1.05rem;
      padding: 0.9rem 0.25rem;
      width: 100%;
      border-bottom: 1px solid var(--line);
    }
    .nav-close {
      display: flex;
      align-items: center;
      justify-content: center;
      position: absolute;
      top: 1rem;
      right: 1.1rem;
      width: 42px;
      height: 42px;
      border: none;
      border-radius: 8px;
      background: var(--navy);
      color: var(--paper);
      font-size: 1.6rem;
      line-height: 1;
      cursor: pointer;
    }
    .nav-dropdown { width: 100%; }
    .nav-dropdown > .nav-drop-toggle {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .nav-dropdown-menu {
      position: static;
      opacity: 1;
      visibility: visible;
      transform: none;
      box-shadow: none;
      border: none;
      border-left: 2px solid var(--line);
      border-radius: 0;
      margin: 0.25rem 0 0.5rem 0.4rem;
      padding: 0 0 0 0.6rem;
      min-width: 0;
      display: none;
    }
    .nav-dropdown.open > .nav-dropdown-menu { display: grid; }
    .nav-dropdown-menu a { padding: 0.7rem 0.5rem; white-space: normal; }
    .nav-cta {
      margin-top: 1rem;
      width: 100%;
      text-align: center;
      padding: 0.95rem 1.25rem;
    }
    .mobile-toggle {
      display: block;
      background: var(--navy);
      color: var(--paper);
      padding: 8px 12px;
      border-radius: 2px;
    }
    .nav-scrim {
      display: block;
      position: fixed;
      inset: 0;
      background: rgba(14,23,41,0.5);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
      z-index: 99;
    }
    .nav-scrim.open { opacity: 1; pointer-events: auto; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px 0; }
    .hero-stat:nth-child(2) { border-right: none; }
    .families-grid { grid-template-columns: 1fr; }
    .families-grid.four-up, .families-grid.two-up { grid-template-columns: 1fr; }
    .config-layout { grid-template-columns: 1fr; }
    .config-form, .config-summary { min-width: 0; }
    .config-summary { position: static; }
    .accessories-grid { grid-template-columns: repeat(2, 1fr); }
    .acc-picker-row { grid-template-columns: 1fr; }
    .acc-picker-add { padding: 14px; }
    .acc-added-row { grid-template-columns: 1fr auto; gap: 8px; }
    .acc-added-row .acc-row-edit { display: none; }
    .coatings-grid { grid-template-columns: 1fr 1fr; }
    .gallery-grid { grid-template-columns: 1fr 1fr; }
    .gallery-item:not(:first-child) img { height: 260px; }
    .compliance-inner { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .check-group { grid-template-columns: 1fr; }
    .quote-meta { grid-template-columns: 1fr; }
    .cart-item { grid-template-columns: 1fr; gap: 8px; }
    .item-price { text-align: left; min-width: 0; }
    section { padding: 64px 24px; }
    .hero { padding: 56px 24px 72px; }
  }
  @media (max-width: 600px) {
    .nav-inner { padding: 14px 20px; }
    .utility-bar-inner { padding: 8px 20px; flex-wrap: wrap; }
    .utility-bar .container { flex-wrap: wrap; justify-content: center; gap: 0.25rem 1rem; }
    .utility-left, .utility-right { flex-wrap: wrap; justify-content: center; gap: 0.5rem 1rem; }
    .accessories-grid { grid-template-columns: 1fr; }
    .coatings-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: 1fr; }
    .gallery-item:first-child img { max-height: 300px; }
    .gallery-item:not(:first-child) img { height: 240px; }
    .compliance-inner { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
  }

  @media print {
    body { background: white; }
    .utility-bar, .main-nav, .hero, .families, .configurator, .accessories,
    .coatings, .project-gallery, .compliance, .faq, .cta-band, footer.site-footer,
    .cart-btn, .modal-close, .cart-actions, .qty-control, .item-remove { display: none !important; }
    .modal-backdrop { position: static; background: white; padding: 0; display: block !important; }
    .modal { padding: 0; border: none; max-width: none; }
  }