/* ============================================================
       RESET & CSS VARIABLES
    ============================================================ */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --bg-base:       #0D1B2A;
      --bg-surface:    #142232;
      --bg-elevated:   #1B2F44;
      --bg-input:      #0F2035;
      --accent:        #F59E0B;
      --accent-hover:  #FBB924;
      --accent-dim:    rgba(245,158,11,0.12);
      --accent-glow:   rgba(245,158,11,0.25);
      --text-pri:      #F1F5F9;
      --text-sec:      #94A3B8;
      --text-muted:    #7A95B0;
      --border:        #1E3A54;
      --border-hi:     #2B5070;
      --success:       #22C55E;
      --success-dim:   rgba(34,197,94,0.12);
      --warn:          #F59E0B;
      --warn-dim:      rgba(245,158,11,0.12);
      --danger:        #EF4444;
      --danger-dim:    rgba(239,68,68,0.12);
      --font-disp:     'Barlow Condensed', sans-serif;
      --font-body:     'DM Sans', sans-serif;
      --r:             8px;
      --r-lg:          12px;
      --shadow:        0 4px 24px rgba(0,0,0,0.45);
      --shadow-lg:     0 8px 48px rgba(0,0,0,0.55);
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: var(--font-body);
      background: var(--bg-base);
      color: var(--text-pri);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      min-height: 100vh;
    }

    /* Subtle dot-grid texture */
    body::before {
      content: '';
      position: fixed; inset: 0;
      background-image: radial-gradient(rgba(245,158,11,0.035) 1px, transparent 1px);
      background-size: 28px 28px;
      pointer-events: none;
      z-index: 0;
    }

    .page-wrap { position: relative; z-index: 1; }

    /* ============================================================
       HEADER
    ============================================================ */
    .site-header {
      background: var(--bg-surface);
      border-bottom: 2px solid var(--accent);
      position: sticky; top: 0; z-index: 100;
      box-shadow: 0 2px 24px rgba(0,0,0,0.5);
    }
    .header-inner {
      max-width: 1240px; margin: 0 auto; padding: 0 24px;
      display: flex; align-items: center; justify-content: space-between;
      height: 62px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px;
      text-decoration: none; flex-shrink: 0;
    }
    .logo-mark {
      width: 38px; height: 38px;
      background: var(--accent);
      border-radius: 7px;
      display: flex; align-items: center; justify-content: center;
      font-family: var(--font-disp);
      font-weight: 800; font-size: 15px;
      color: var(--bg-base); letter-spacing: -0.5px;
      line-height: 1; flex-shrink: 0;
    }
    .logo-name {
      font-family: var(--font-disp);
      font-weight: 800; font-size: 21px;
      text-transform: uppercase; letter-spacing: 0.5px;
      color: var(--text-pri);
    }
    .logo-name em { color: var(--accent); font-style: normal; }
    .site-nav { display: flex; gap: 6px; align-items: center; }
    .site-nav a {
      color: var(--text-sec); text-decoration: none;
      font-size: 13px; font-weight: 500;
      padding: 6px 10px; border-radius: var(--r);
      transition: color 0.18s, background 0.18s;
      letter-spacing: 0.2px;
    }
    .site-nav a:hover { color: var(--text-pri); background: rgba(255,255,255,0.05); }
    .nav-btn {
      background: var(--accent) !important;
      color: var(--bg-base) !important;
      font-weight: 700 !important;
      padding: 7px 16px !important;
      border-radius: var(--r) !important;
      margin-left: 6px;
    }
    .nav-btn:hover { background: var(--accent-hover) !important; }
    @media (max-width: 700px) {
      .site-nav .hide-mobile { display: none; }
      .logo-name { font-size: 17px; }
    }

    /* ============================================================
       LAYOUT CONTAINER
    ============================================================ */
    .container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

    /* ============================================================
       AD ZONES — clearly marked, styled as placeholders
    ============================================================ */
    .ad-placeholder {
      display: flex; align-items: center; justify-content: center;
      border: 1.5px dashed var(--border-hi);
      border-radius: var(--r);
      background: rgba(255,255,255,0.018);
      color: var(--text-muted);
      font-family: var(--font-disp);
      font-size: 11px; font-weight: 600;
      letter-spacing: 1.2px; text-transform: uppercase;
    }

    /* Shared disclosure label — required by AdSense policy */
    .ad-label {
      font-size: 10px; font-weight: 600;
      text-transform: uppercase; letter-spacing: 1.2px;
      color: var(--text-muted);
      text-align: center;
    }

    /* ── AD ZONE 1 — Header Leaderboard ── */
    .ad-zone1-wrap {
      display: flex; flex-direction: column; align-items: center;
      gap: 6px;
      padding: 14px 0 18px;
      border-bottom: 1px solid var(--border);
    }
    .ad-header { display: block; width: 728px; height: 90px; }
    @media (max-width: 760px) { .ad-header { width: 100%; max-width: 728px; height: auto; } }

    /* ── AD ZONE 2 — Sidebar ── */
    .sidebar-ad-wrap {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--r-lg);
      padding: 14px 14px 14px;
      display: flex; flex-direction: column; align-items: center; gap: 8px;
    }
    .sidebar-ad-wrap .ad-label { align-self: stretch; text-align: left; }
    .ad-sidebar { width: 300px; height: 250px; flex-shrink: 0; border-radius: var(--r); }

    /* ── AD ZONE 3 — In-Content Two-Column Editorial ── */
    .ad-zone3-wrap {
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      background: var(--bg-surface);
    }
    .ad-zone3-inner {
      display: flex; align-items: center;
      gap: 56px;
      padding: 44px 0;
    }
    .ad-zone3-editorial {
      flex: 1; min-width: 0;
    }
    .ad-zone3-hed {
      font-family: var(--font-disp); font-weight: 800;
      font-size: clamp(24px, 3vw, 36px);
      text-transform: uppercase; letter-spacing: 0.5px;
      color: var(--text-pri); line-height: 1.08;
      margin-bottom: 14px;
    }
    .ad-zone3-body {
      font-size: 15px; color: var(--text-sec); line-height: 1.72;
      max-width: 520px;
    }
    .ad-zone3-col {
      flex-shrink: 0;
      display: flex; flex-direction: column; align-items: center; gap: 8px;
    }
    .ad-zone3-col .ad-label { align-self: stretch; text-align: left; }
    .ad-content { width: 336px; height: 280px; border-radius: var(--r); }

    /* Zone 3 — collapse to stacked on smaller viewports */
    @media (max-width: 800px) {
      .ad-zone3-inner { flex-direction: column; gap: 28px; padding: 32px 0; }
      .ad-zone3-body { max-width: none; }
    }

    /* ============================================================
       HERO
    ============================================================ */
    .hero {
      padding: 36px 0 28px;
      text-align: center;
    }
    .hero-badge {
      display: inline-flex; align-items: center; gap: 6px;
      background: var(--accent-dim);
      border: 1px solid rgba(245,158,11,0.4);
      border-radius: 30px; padding: 5px 14px;
      font-size: 11px; font-weight: 700;
      color: var(--accent); letter-spacing: 1px; text-transform: uppercase;
      margin-bottom: 18px;
    }
    h1.hero-title {
      font-family: var(--font-disp);
      font-weight: 800;
      font-size: clamp(30px, 5.5vw, 54px);
      line-height: 1.05;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: var(--text-pri);
      margin-bottom: 14px;
    }
    h1.hero-title .hi { color: var(--accent); }
    .hero-sub {
      font-size: clamp(15px, 2vw, 17px);
      color: var(--text-sec);
      max-width: 540px; margin: 0 auto;
      line-height: 1.65;
    }
    .hero-cta {
      display: inline-flex; align-items: center; gap: 8px;
      margin-top: 24px;
      background: var(--accent); color: var(--bg-base);
      font-family: var(--font-body); font-weight: 700; font-size: 15px;
      padding: 13px 28px; border-radius: var(--r);
      text-decoration: none; letter-spacing: 0.2px;
      transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    }
    .hero-cta:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
      box-shadow: 0 4px 18px var(--accent-glow);
    }

    /* ============================================================
       MAIN GRID — calculator + sidebar
    ============================================================ */
    .main-grid {
      display: grid;
      grid-template-columns: 1fr 324px;
      gap: 24px;
      align-items: start;
      padding: 24px 0 48px;
    }
    @media (max-width: 1060px) {
      .main-grid { grid-template-columns: 1fr; }
      .sidebar-sticky { position: static; }
    }
    .sidebar-sticky {
      position: sticky; top: 82px;
      display: flex; flex-direction: column; gap: 20px;
    }

    /* ============================================================
       CALCULATOR CARD
    ============================================================ */
    .calc-card {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--r-lg);
      box-shadow: var(--shadow);
      /* overflow moved to .calc-top so button tooltips can escape the card */
      overflow: visible;
    }
    .calc-top {
      display: flex; align-items: center; gap: 14px;
      padding: 20px 24px;
      background: var(--bg-elevated);
      border-bottom: 1px solid var(--border);
      /* clips the darker bg at the top rounded corners */
      border-radius: var(--r-lg) var(--r-lg) 0 0;
      overflow: hidden;
    }
    .calc-icon {
      width: 42px; height: 42px; flex-shrink: 0;
      background: var(--accent-dim);
      border: 1px solid rgba(245,158,11,0.3);
      border-radius: var(--r);
      display: flex; align-items: center; justify-content: center;
      font-size: 20px; line-height: 1;
    }
    .calc-top h2 {
      font-family: var(--font-disp);
      font-weight: 700; font-size: 19px;
      text-transform: uppercase; letter-spacing: 0.5px;
      color: var(--text-pri);
    }
    .calc-top p { font-size: 13px; color: var(--text-sec); margin-top: 2px; }
    .calc-body { padding: 24px; }

    /* ============================================================
       TRADE SELECTOR
    ============================================================ */
    .trade-wrap { margin-bottom: 26px; }
    .trade-wrap > label {
      display: block;
      font-family: var(--font-disp); font-weight: 700;
      font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px;
      color: var(--accent); margin-bottom: 8px;
    }
    select.trade-select {
      width: 100%;
      background: var(--bg-input);
      border: 2px solid var(--border-hi);
      border-radius: var(--r);
      color: var(--text-pri);
      font-family: var(--font-body); font-size: 15px; font-weight: 600;
      padding: 12px 40px 12px 14px;
      cursor: pointer;
      appearance: none; -webkit-appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23F59E0B' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 14px center;
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    select.trade-select:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px var(--accent-dim);
    }
    select.trade-select option { background: var(--bg-elevated); }

    /* ============================================================
       SECTION DIVIDERS IN CALC
    ============================================================ */
    .field-section {
      font-family: var(--font-disp); font-weight: 700;
      font-size: 11px; text-transform: uppercase; letter-spacing: 1.8px;
      color: var(--text-muted);
      padding-bottom: 10px; margin-bottom: 16px;
      border-bottom: 1px solid var(--border);
    }

    /* ============================================================
       INPUT GRID
    ============================================================ */
    .igrid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 26px;
    }
    .igrid.cols-1 { grid-template-columns: 1fr; }
    .igrid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
    @media (max-width: 560px) {
      .igrid, .igrid.cols-3 { grid-template-columns: 1fr; }
    }
    .ig-full { grid-column: 1 / -1; }

    .igroup { display: flex; flex-direction: column; gap: 6px; }

    .ilabel {
      display: flex; align-items: center; gap: 5px;
      font-size: 11px; font-weight: 600;
      text-transform: uppercase; letter-spacing: 0.6px;
      color: var(--text-sec);
    }

    /* Tooltip */
    .tip {
      display: inline-flex; align-items: center; justify-content: center;
      width: 15px; height: 15px;
      background: var(--border-hi);
      border-radius: 50%;
      font-size: 9px; font-weight: 700;
      color: var(--text-muted); cursor: help;
      position: relative; flex-shrink: 0;
      line-height: 1;
    }
    .tip::before {
      content: attr(data-tip);
      position: absolute;
      bottom: calc(100% + 9px);
      left: 50%; transform: translateX(-50%);
      background: var(--bg-elevated);
      border: 1px solid var(--border-hi);
      color: var(--text-sec);
      font-family: var(--font-body);
      font-size: 12px; font-weight: 400;
      line-height: 1.5; letter-spacing: 0; text-transform: none;
      padding: 9px 12px;
      border-radius: var(--r);
      white-space: pre-line; width: 230px;
      text-align: left;
      opacity: 0; pointer-events: none;
      transition: opacity 0.18s;
      z-index: 50;
      box-shadow: var(--shadow);
    }
    .tip::after {
      content: '';
      position: absolute;
      bottom: calc(100% + 3px);
      left: 50%; transform: translateX(-50%);
      border: 5px solid transparent;
      border-top-color: var(--border-hi);
      opacity: 0; pointer-events: none;
      transition: opacity 0.18s;
    }
    .tip:hover::before, .tip:hover::after,
    .tip.active::before, .tip.active::after { opacity: 1; }
    .tip-lg::before { width: 260px; }

    /* Input wrapper */
    .ifield { position: relative; display: flex; align-items: center; }
    .ipre, .isuf {
      position: absolute;
      font-size: 14px; font-weight: 500;
      color: var(--text-muted);
      pointer-events: none; z-index: 1;
    }
    .ipre { left: 12px; }
    .isuf { right: 12px; }

    input[type="number"],
    input[type="text"] {
      width: 100%;
      background: var(--bg-input);
      border: 1.5px solid var(--border);
      border-radius: var(--r);
      color: var(--text-pri);
      font-family: var(--font-body); font-size: 15px; font-weight: 500;
      padding: 11px 13px;
      transition: border-color 0.18s, box-shadow 0.18s, background 0.18s;
      -moz-appearance: textfield;
    }
    input[type="number"]::-webkit-outer-spin-button,
    input[type="number"]::-webkit-inner-spin-button {
      -webkit-appearance: none; margin: 0;
    }
    input:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px var(--accent-dim);
      background: #0C1E30;
    }
    .has-pre input { padding-left: 26px; }
    .has-suf input { padding-right: 34px; }

    /* ============================================================
       RESULTS PANEL
    ============================================================ */
    .results {
      background: var(--bg-elevated);
      border: 2px solid var(--border);
      border-radius: var(--r-lg);
      overflow: hidden;
    }

    /* Header row */
    .results-hdr {
      display: flex; align-items: center; justify-content: space-between;
      padding: 14px 20px;
      background: var(--bg-base);
      border-bottom: 1px solid var(--border);
    }
    .results-hdr-label {
      font-family: var(--font-disp); font-weight: 700;
      font-size: 11px; text-transform: uppercase; letter-spacing: 1.8px;
      color: var(--text-muted);
    }
    .money-badge {
      display: inline-flex; align-items: center; gap: 5px;
      font-family: var(--font-disp); font-weight: 800;
      font-size: 13px; letter-spacing: 0.5px;
      padding: 4px 12px; border-radius: 30px;
      transition: all 0.28s ease;
    }
    .money-badge.yes  { background: var(--success-dim); color: var(--success); border: 1px solid var(--success); }
    .money-badge.warn { background: var(--warn-dim);    color: var(--warn);    border: 1px solid var(--warn);    }
    .money-badge.no   { background: var(--danger-dim);  color: var(--danger);  border: 1px solid var(--danger);  }

    /* Big price */
    .price-block {
      text-align: center;
      padding: 28px 20px 22px;
      border-bottom: 1px solid var(--border);
    }
    .price-lbl {
      font-size: 11px; font-weight: 600;
      text-transform: uppercase; letter-spacing: 1.5px;
      color: var(--text-muted); margin-bottom: 6px;
    }
    .price-num {
      font-family: var(--font-disp); font-weight: 800;
      font-size: clamp(44px, 9vw, 68px);
      color: var(--accent); letter-spacing: -2px; line-height: 1;
      transition: color 0.2s;
    }
    .price-note { font-size: 12px; color: var(--text-muted); margin-top: 6px; }

    /* Metrics row */
    .metrics {
      display: grid; grid-template-columns: 1fr 1fr 1fr;
      border-bottom: 1px solid var(--border);
    }
    @media (max-width: 440px) {
      .metrics { grid-template-columns: 1fr 1fr; }
      .metrics .metric:last-child {
        grid-column: 1 / -1;
        border-top: 1px solid var(--border);
        border-right: none;
      }
    }
    .metric {
      padding: 16px 12px; text-align: center;
      border-right: 1px solid var(--border);
    }
    .metric:last-child { border-right: none; }
    .metric-lbl {
      font-size: 11px; font-weight: 600;
      text-transform: uppercase; letter-spacing: 0.8px;
      color: var(--text-muted); margin-bottom: 4px;
    }
    .metric-val {
      font-family: var(--font-disp); font-weight: 700; font-size: 24px;
      transition: all 0.25s ease;
    }
    .c-green { color: var(--success); }
    .c-warn  { color: var(--warn);    }
    .c-red   { color: var(--danger);  }
    .c-white { color: var(--text-pri); }

    /* Breakdown accordion */
    .bk-toggle {
      width: 100%; background: none; border: none;
      border-bottom: 1px solid var(--border);
      padding: 13px 20px;
      display: flex; align-items: center; justify-content: space-between;
      cursor: pointer;
      color: var(--text-sec);
      font-family: var(--font-body); font-size: 12px; font-weight: 600;
      text-transform: uppercase; letter-spacing: 1px;
      transition: background 0.18s, color 0.18s;
    }
    .bk-toggle:hover { background: rgba(255,255,255,0.03); color: var(--text-pri); }
    .bk-arrow { font-size: 14px; transition: transform 0.22s; flex-shrink: 0; }
    .bk-toggle.open .bk-arrow { transform: rotate(180deg); }
    .bk-toggle.open { border-bottom-color: transparent; }

    .bk-body { display: none; }
    .bk-body.open { display: block; }

    .bk-row {
      display: flex; justify-content: space-between; align-items: center;
      padding: 8px 20px;
      transition: background 0.15s;
    }
    .bk-row:hover { background: rgba(255,255,255,0.025); }
    .bk-rowlbl {
      font-size: 13px; color: var(--text-sec);
      display: flex; align-items: center; gap: 8px;
    }
    .bk-rowlbl::before {
      content: '';
      width: 7px; height: 7px;
      border-radius: 2px;
      background: var(--accent); opacity: 0.4; flex-shrink: 0;
    }
    .bk-rowval {
      font-family: var(--font-disp); font-weight: 700; font-size: 16px;
      color: var(--text-pri);
    }
    .bk-total {
      display: flex; justify-content: space-between; align-items: center;
      padding: 12px 20px 14px;
      border-top: 1px solid var(--border);
    }
    .bk-totallbl {
      font-size: 11px; font-weight: 600;
      text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted);
    }
    .bk-totalval {
      font-family: var(--font-disp); font-weight: 800; font-size: 20px;
      color: var(--text-pri);
    }

    /* ── Quote Settings ── */

    .qs-section-lbl {
      font-family: var(--font-disp); font-weight: 700;
      font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px;
      color: var(--accent); margin-bottom: 12px;
    }
    .qs-accordion {
      border: 1px solid var(--border);
      border-radius: var(--r);
      margin-top: 18px;
      transition: border-color 0.2s;
    }
    .qs-accordion:hover { border-color: var(--border-hi); }
    .qs-acc-toggle {
      width: 100%; background: none; border: none;
      padding: 13px 16px;
      display: flex; align-items: center; justify-content: space-between; gap: 10px;
      cursor: pointer;
      color: var(--text-sec);
      font-family: var(--font-body); font-size: 12px; font-weight: 600;
      text-transform: uppercase; letter-spacing: 1px; text-align: left;
      transition: background 0.18s, color 0.18s;
    }
    .qs-acc-toggle:hover { color: var(--text-pri); }
    .qs-acc-toggle.open .bk-arrow { transform: rotate(180deg); }
    .qs-acc-hint {
      text-transform: none; letter-spacing: 0.2px;
      font-weight: 400; color: var(--text-muted);
    }
    .qs-acc-panel {
      display: none;
      padding: 14px 16px 16px;
      border-top: 1px solid var(--border);
    }
    .qs-acc-panel.open { display: block; }
    .qs-divider { height: 1px; background: var(--border); margin: 16px 0; }
    .qs-check-label {
      display: flex; align-items: center; gap: 8px;
      font-size: 13px; color: var(--text-sec);
      cursor: pointer; user-select: none; margin-top: 10px;
    }
    .qs-check-label input[type="checkbox"] {
      width: 15px; height: 15px;
      accent-color: var(--accent); cursor: pointer; flex-shrink: 0;
    }
    .qs-inline-check {
      display: flex; align-items: center; gap: 8px;
      font-size: 13px; color: var(--text-sec);
      cursor: pointer; user-select: none;
      padding-top: 22px;
    }
    .qs-inline-check input[type="checkbox"] {
      width: 15px; height: 15px;
      accent-color: var(--accent); cursor: pointer; flex-shrink: 0;
    }

    /* ── Button tooltips ── */
    .btn { position: relative; }
    .btn[data-tip]::before {
      content: attr(data-tip);
      position: absolute;
      bottom: calc(100% + 9px);
      left: 50%; transform: translateX(-50%);
      background: var(--bg-elevated);
      border: 1px solid var(--border-hi);
      color: var(--text-sec);
      font-family: var(--font-body);
      font-size: 12px; font-weight: 400;
      line-height: 1.55; letter-spacing: 0; text-transform: none;
      padding: 10px 13px;
      border-radius: var(--r);
      white-space: pre-line; width: 240px;
      text-align: left;
      opacity: 0; pointer-events: none;
      transition: opacity 0.18s;
      z-index: 300;
      box-shadow: 0 4px 24px rgba(0,0,0,0.55);
    }
    .btn[data-tip]::after {
      content: '';
      position: absolute;
      bottom: calc(100% + 3px);
      left: 50%; transform: translateX(-50%);
      border: 5px solid transparent;
      border-top-color: var(--border-hi);
      opacity: 0; pointer-events: none;
      transition: opacity 0.18s;
    }
    .btn[data-tip]:hover::before,
    .btn[data-tip]:hover::after { opacity: 1; }

    /* Buttons */
    .calc-actions {
      display: flex; gap: 18px 22px; flex-wrap: wrap;
      padding: 20px 24px;
      border-top: 1px solid var(--border);
    }
    .action-group {
      flex: 1 1 230px;
      display: flex; flex-direction: column; gap: 8px;
    }
    .action-group-reset { flex: 0 0 auto; }
    .action-group-lbl {
      font-family: var(--font-disp); font-weight: 700;
      font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px;
      color: var(--text-muted);
    }
    .action-btns {
      display: flex; gap: 10px; flex-wrap: wrap;
      flex: 1; align-items: flex-end;
    }
    .btn {
      flex: 1; min-width: 120px;
      display: inline-flex; align-items: center; justify-content: center; gap: 7px;
      padding: 12px 18px;
      border-radius: var(--r);
      font-family: var(--font-body); font-size: 14px; font-weight: 600;
      cursor: pointer; border: none; white-space: nowrap;
      letter-spacing: 0.2px; transition: all 0.2s;
    }
    .btn-primary { background: var(--accent); color: var(--bg-base); }
    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
      box-shadow: 0 4px 18px var(--accent-glow);
    }
    .btn-primary:active { transform: translateY(0); }
    .btn-ghost {
      background: var(--bg-input);
      color: var(--text-sec);
      border: 1.5px solid var(--border-hi);
    }
    .btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

    /* ── Save as PDF ─────────────────────────────────────────────── */
    /* Print header: hidden on screen, shown only in @media print    */
    .print-header {
      display: none;
      padding: 16px 20px 14px;
      border-bottom: 2px solid var(--border-hi);
      margin-bottom: 0;
    }
    .print-header-title {
      font-family: var(--font-disp); font-weight: 800; font-size: 22px;
      text-transform: uppercase; letter-spacing: 0.4px;
      color: var(--text-pri); margin-bottom: 3px; line-height: 1.1;
    }
    .print-header-meta {
      font-size: 12px; color: var(--text-sec); line-height: 1.5;
    }

    /* ── Customer PDF Panel ── */
    .cust-print-panel { display: none; } /* hidden on screen */
    .cust-biz-block {
      padding: 14px 20px 12px;
      border-bottom: 1px solid var(--border);
    }
    .cust-biz-name {
      font-family: var(--font-disp); font-weight: 800; font-size: 20px;
      text-transform: uppercase; letter-spacing: 0.4px;
      color: var(--text-pri); margin-bottom: 3px;
    }
    .cust-biz-contact { font-size: 13px; color: var(--text-sec); }

    @media print {
      * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }

      /* ── Hide all page chrome — physically removes from flow ── */
      .no-print,
      .site-header,
      .ad-zone1-wrap,
      .sidebar-col,
      .ad-zone3-wrap,
      .content-sec,
      .site-footer,
      #toast,
      .calc-top,
      .calc-body,
      .calc-actions { display: none !important; }

      /* ── Show print-only elements ── */
      .print-header { display: block !important; }
      .bk-body      { display: block !important; }

      /* ── Strip layout wrappers to plain blocks ── */
      body, .page-wrap, main,
      .container, .main-grid,
      .calc-col, .calc-card {
        display: block !important;
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
        max-width: none !important;
        background: transparent !important;
        border: none !important;
        border-radius: 0 !important;
        overflow: visible !important;
        box-shadow: none !important;
      }

      /* ── Results panel: full width, flush to page ── */
      .results {
        width: 100% !important;
        border: none !important;
        border-radius: 0 !important;
        overflow: visible !important;
      }

      /* ── Hero: dark blue text in print only ── */
      body::before { display: none !important; }
      .hero-title   { color: #0D1B2A !important; }
      .hero-badge   { color: #0D1B2A !important; background: transparent !important; border-color: #0D1B2A !important; }
      .hero-sub     { color: #4A5568 !important; }

      /* ── Customer PDF mode ── */
      body.print-customer .results { display: none !important; }
      body.print-customer .cust-print-panel {
        display: block !important;
        visibility: visible !important;
        position: absolute; top: 0; left: 0;
        width: 100%;
        border: none !important;
        border-radius: 0 !important;
        overflow: visible !important;
      }
      body.print-customer .cust-print-panel * { visibility: visible !important; }
    }

    /* Toast */
    #toast {
      position: fixed; bottom: 24px; right: 24px;
      background: var(--success);
      color: #fff;
      padding: 12px 20px; border-radius: var(--r);
      font-size: 14px; font-weight: 600;
      box-shadow: var(--shadow-lg);
      transform: translateY(80px); opacity: 0;
      transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
      z-index: 999;
    }
    #toast.show { transform: translateY(0); opacity: 1; }

    /* ── Sticky results mini-bar ── */
    .sticky-results {
      position: fixed; left: 0; right: 0; bottom: 0;
      z-index: 200;
      background: var(--bg-elevated);
      border-top: 2px solid var(--accent);
      box-shadow: 0 -6px 24px rgba(0,0,0,0.5);
      transform: translateY(110%);
      transition: transform 0.25s ease;
    }
    .sticky-results.show { transform: translateY(0); }
    .sticky-results-inner {
      width: 100%; max-width: 1240px; margin: 0 auto;
      display: flex; align-items: center; justify-content: center; gap: 26px;
      padding: 9px 20px 11px;
      background: none; border: none; cursor: pointer;
      font-family: var(--font-body);
    }
    .sr-cell { text-align: center; }
    .sr-lbl {
      display: block;
      font-size: 10px; font-weight: 600;
      text-transform: uppercase; letter-spacing: 1px;
      color: var(--text-muted);
    }
    .sr-price {
      font-family: var(--font-disp); font-weight: 800;
      font-size: 24px; line-height: 1.1;
      color: var(--accent); letter-spacing: -0.5px;
    }
    .sr-val {
      font-family: var(--font-disp); font-weight: 700;
      font-size: 19px; line-height: 1.3;
      color: var(--text-pri);
    }
    .sr-go {
      font-size: 12px; font-weight: 600;
      color: var(--text-sec);
    }
    @media (max-width: 480px) {
      .sticky-results-inner { gap: 18px; }
      .sr-go { display: none; }
    }

    /* ============================================================
       SIDEBAR INFO CARD
    ============================================================ */
    .sidebar-card {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--r-lg);
      padding: 20px;
    }
    .sidebar-card h3 {
      font-family: var(--font-disp); font-weight: 700;
      font-size: 14px; text-transform: uppercase; letter-spacing: 0.8px;
      color: var(--text-pri); margin-bottom: 14px;
    }
    .sidebar-card ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }
    .sidebar-card ul li {
      display: flex; align-items: flex-start; gap: 9px;
      font-size: 13px; color: var(--text-sec); line-height: 1.5;
    }
    .sidebar-card ul li::before {
      content: '✓';
      color: var(--success); font-size: 11px; font-weight: 700;
      margin-top: 2px; flex-shrink: 0;
    }

    /* ============================================================
       CONTENT SECTIONS
    ============================================================ */
    .content-sec {
      padding: 64px 0;
      position: relative; z-index: 1;
    }
    .content-sec + .content-sec { border-top: 1px solid var(--border); }

    .sec-eyebrow {
      font-family: var(--font-disp); font-weight: 700;
      font-size: 11px; text-transform: uppercase; letter-spacing: 2px;
      color: var(--accent); margin-bottom: 8px;
    }
    .sec-h2 {
      font-family: var(--font-disp); font-weight: 800;
      font-size: clamp(26px, 4vw, 40px);
      text-transform: uppercase; letter-spacing: 0.5px;
      color: var(--text-pri); margin-bottom: 20px; line-height: 1.08;
    }
    .prose a { color: var(--accent); text-decoration: none; font-weight: 500; }
    .prose a:hover { text-decoration: underline; }
    .prose {
      color: var(--text-sec); font-size: 16px; line-height: 1.78;
      max-width: 720px;
    }
    .prose p + p { margin-top: 16px; }
    .prose strong { color: var(--text-pri); font-weight: 600; }

    /* ============================================================
       TRADE TIPS ACCORDION
    ============================================================ */
    .tips-grid { margin-top: 32px; display: flex; flex-direction: column; gap: 4px; }

    .tip-item {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--r);
      overflow: hidden;
      transition: border-color 0.2s;
    }
    .tip-item:hover { border-color: var(--border-hi); }
    .tip-item.open { border-color: var(--accent); }

    .tip-heading { margin: 0; padding: 0; line-height: 1; }
    .tip-btn {
      width: 100%; background: none; border: none;
      padding: 15px 20px;
      display: flex; align-items: center; justify-content: space-between;
      cursor: pointer;
      font-family: var(--font-disp); font-weight: 700; font-size: 17px;
      text-transform: uppercase; letter-spacing: 0.5px;
      color: var(--text-pri); text-align: left; gap: 12px;
      transition: color 0.18s;
    }
    .tip-btn:hover { color: var(--accent); }
    .tip-item.open .tip-btn { color: var(--accent); }

    .tip-arrow {
      font-size: 13px; color: var(--text-muted);
      transition: transform 0.22s; flex-shrink: 0;
    }
    .tip-item.open .tip-arrow { transform: rotate(180deg); color: var(--accent); }

    .tip-panel {
      display: none;
      padding: 0 20px 18px;
      border-top: 1px solid var(--border);
    }
    .tip-item.open .tip-panel { display: block; }

    .tip-list { list-style: none; display: flex; flex-direction: column; gap: 11px; padding-top: 14px; }
    .tip-list li {
      display: flex; align-items: flex-start; gap: 10px;
      font-size: 14px; color: var(--text-sec); line-height: 1.6;
    }
    .tip-list li::before {
      content: '▸'; color: var(--accent);
      font-size: 11px; margin-top: 3px; flex-shrink: 0;
    }

    /* ============================================================
       FAQ
    ============================================================ */
    .faq-list { margin-top: 32px; max-width: 820px; display: flex; flex-direction: column; gap: 4px; }

    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--r);
      overflow: hidden;
      transition: border-color 0.2s;
    }
    .faq-item:hover { border-color: var(--border-hi); }
    .faq-item.open { border-color: var(--accent); }

    .faq-heading { margin: 0; padding: 0; line-height: 1; }
    .faq-q {
      width: 100%; background: none; border: none;
      padding: 18px 20px;
      display: flex; align-items: flex-start; justify-content: space-between;
      cursor: pointer;
      font-family: var(--font-body); font-size: 15px; font-weight: 600;
      color: var(--text-pri); text-align: left; gap: 12px;
      transition: color 0.18s; line-height: 1.45;
    }
    .faq-q:hover { color: var(--accent); }
    .faq-item.open .faq-q { color: var(--accent); }

    .faq-ico {
      font-size: 20px; color: var(--text-muted);
      transition: transform 0.22s, color 0.18s;
      flex-shrink: 0; margin-top: -1px;
    }
    .faq-item.open .faq-ico { transform: rotate(45deg); color: var(--accent); }

    .faq-a {
      display: none;
      padding: 0 20px 18px;
      border-top: 1px solid var(--border);
      color: var(--text-sec); font-size: 14px; line-height: 1.75;
      padding-top: 16px;
    }
    .faq-item.open .faq-a { display: block; }

    /* ============================================================
       FOOTER
    ============================================================ */
    .site-footer {
      background: var(--bg-surface);
      border-top: 1px solid var(--border);
      padding: 48px 0 0;
      position: relative; z-index: 1;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1fr auto auto;
      gap: 48px;
      padding-bottom: 36px;
      border-bottom: 1px solid var(--border);
    }
    @media (max-width: 680px) {
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    }
    .footer-brand p {
      color: var(--text-muted); font-size: 13px;
      margin-top: 10px; max-width: 280px; line-height: 1.55;
    }
    .footer-col-title {
      font-family: var(--font-disp); font-weight: 700;
      font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px;
      color: var(--text-muted); margin-bottom: 12px;
    }
    .footer-links { display: flex; flex-direction: column; gap: 8px; }
    .footer-links a {
      color: var(--text-sec); text-decoration: none;
      font-size: 14px; transition: color 0.18s;
    }
    .footer-links a:hover { color: var(--accent); }
    .footer-bottom {
      display: flex; justify-content: space-between; align-items: flex-start;
      padding: 20px 0;
      flex-wrap: wrap; gap: 12px;
    }
    .footer-copy { color: var(--text-muted); font-size: 13px; }
    .footer-disc {
      color: var(--text-muted); font-size: 12px; font-style: italic;
      max-width: 480px; text-align: right; line-height: 1.5;
    }
    @media (max-width: 640px) {
      .footer-bottom { flex-direction: column; }
      .footer-disc { text-align: left; }
    }

    /* ============================================================
       ANIMATIONS
    ============================================================ */
    @keyframes popNum {
      0%   { transform: scale(1); }
      40%  { transform: scale(1.06); }
      100% { transform: scale(1); }
    }
    .pop { animation: popNum 0.22s ease; }

    /* ── Hamburger mobile menu ── */
    .menu-btn {
      display: none; background: none; border: none; cursor: pointer;
      color: #94A3B8; padding: 6px 8px; border-radius: 8px;
      font-size: 22px; line-height: 1;
      align-items: center; justify-content: center;
      transition: color 0.18s, background 0.18s;
    }
    .menu-btn:hover { color: #F59E0B; background: rgba(255,255,255,0.05); }
    @media (max-width: 700px) { .menu-btn { display: flex; } }

    .mobile-menu {
      display: none;
      position: absolute; top: 100%; left: 0; right: 0;
      background: #142232;
      border-top: 1px solid #1E3A54;
      border-bottom: 2px solid #F59E0B;
      box-shadow: 0 8px 32px rgba(0,0,0,0.5);
      flex-direction: column;
      z-index: 99;
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu a {
      display: block; color: #94A3B8; text-decoration: none;
      padding: 15px 24px; font-size: 15px; font-weight: 500;
      border-bottom: 1px solid #1E3A54;
      font-family: 'DM Sans', sans-serif;
      transition: color 0.18s, background 0.18s;
    }
    .mobile-menu a:last-child { border-bottom: none; }
    .mobile-menu a:hover { color: #F59E0B; background: rgba(255,255,255,0.03); }
    .mobile-menu .mob-cta { color: #F59E0B !important; font-weight: 700 !important; background: rgba(245,158,11,0.06); }

    /* Breadcrumbs + related guides (calculator page) */
    .crumbs {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 14px;
    }
    .crumbs a { color: var(--text-sec); text-decoration: none; }
    .crumbs a:hover { color: var(--accent); }
    .crumbs-sep { margin: 0 8px; color: var(--text-muted); }
    .guide-list {
      margin-top: 22px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      max-width: 720px;
    }
    .guide-list a {
      display: block;
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--r);
      padding: 14px 16px;
      color: var(--text-pri);
      text-decoration: none;
      font-size: 15px;
      font-weight: 600;
      transition: border-color 0.18s, color 0.18s;
    }
    .guide-list a:hover { border-color: var(--accent); color: var(--accent); }
    .guide-list a span {
      display: block;
      margin-top: 4px;
      font-size: 13px;
      font-weight: 400;
      color: var(--text-sec);
    }
    .tip-list a { color: var(--accent); text-decoration: none; font-weight: 500; }
    .tip-list a:hover { text-decoration: underline; }

    /* Reused trade-guide article (landing pages) */
    .guide-body { font-size: 16px; color: var(--text-sec); line-height: 1.78; max-width: 800px; }
    .guide-body p { margin-bottom: 16px; }
    .guide-body p:last-child { margin-bottom: 0; }
    .guide-body h2 {
      font-family: var(--font-disp); font-weight: 800;
      font-size: clamp(22px, 3vw, 32px);
      text-transform: uppercase; letter-spacing: 0.4px;
      color: var(--text-pri); line-height: 1.1;
      margin: 40px 0 14px; padding-bottom: 10px;
      border-bottom: 1px solid var(--border);
    }
    .guide-body h2:first-child { margin-top: 0; }
    .guide-body h3 {
      font-family: var(--font-disp); font-weight: 700;
      font-size: 20px; text-transform: uppercase; letter-spacing: 0.3px;
      color: var(--text-pri); line-height: 1.15; margin: 26px 0 10px;
    }
    .guide-body strong { color: var(--text-pri); font-weight: 600; }
    .guide-body a { color: var(--accent); text-decoration: none; font-weight: 500; }
    .guide-body a:hover { text-decoration: underline; }
    .guide-body ul, .guide-body ol {
      margin: 0 0 18px 0; padding: 0; list-style: none;
      display: flex; flex-direction: column; gap: 10px;
    }
    .guide-body ul li, .guide-body ol li {
      display: flex; align-items: flex-start; gap: 10px;
      color: var(--text-sec); line-height: 1.7;
    }
    .guide-body ul li::before { content: '▸'; color: var(--accent); font-size: 11px; margin-top: 4px; flex-shrink: 0; }
    .guide-body ol { counter-reset: ol-counter; }
    .guide-body ol li { counter-increment: ol-counter; }
    .guide-body ol li::before {
      content: counter(ol-counter) '.'; color: var(--accent);
      font-family: var(--font-disp); font-weight: 700; font-size: 13px;
      margin-top: 2px; flex-shrink: 0; min-width: 18px;
    }
    .guide-body figure { margin: 0 0 24px; }
    .guide-body figure img { width: 100%; height: auto; border-radius: var(--r-lg); display: block; }
    .guide-body figcaption {
      font-size: 12px; color: var(--text-muted); text-align: center;
      margin-top: 8px; font-style: italic; line-height: 1.5;
    }
    .guide-body .disclaimer {
      font-size: 13px; color: var(--text-muted); font-style: italic;
      border-top: 1px solid var(--border); padding-top: 20px; margin-top: 28px;
    }
    .callout {
      background: rgba(245,158,11,0.07);
      border: 1px solid rgba(245,158,11,0.25);
      border-left: 4px solid var(--accent);
      border-radius: var(--r);
      padding: 18px 22px; margin: 24px 0;
    }
    .callout p { margin-bottom: 0; color: var(--text-sec); }
    .callout strong { color: var(--accent); }
    .data-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
    .data-table th {
      background: var(--bg-elevated); color: var(--text-muted);
      font-family: var(--font-disp); font-weight: 700; font-size: 11px;
      text-transform: uppercase; letter-spacing: 1.2px;
      padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border);
    }
    .data-table td {
      padding: 11px 14px; border-bottom: 1px solid var(--border);
      color: var(--text-sec); vertical-align: top;
    }
    .data-table tr:last-child td { border-bottom: none; }
    .data-table tr:hover td { background: rgba(255,255,255,0.02); }
    .data-table .row-label { font-weight: 600; color: var(--text-pri); }
    .data-table .row-total td {
      background: rgba(245,158,11,0.06); font-weight: 700;
      color: var(--text-pri); border-top: 1px solid var(--border-hi);
    }
    .data-table .row-total .row-label { color: var(--accent); }