:root {
    --burgundy: #600F31;
    --burgundy-deep: #56032A;
    --pink: #D51A68;
    --ink: #201818;
    --graphite: #4D4646;
    --mute: #727272;
    --bone-50: #F9F7F6;
    --bone-100: #F4F3F2;
    --bone-200: #EAE5E2;
    --border: #EAE5E2;
    --font-display: "General Sans", "DM Sans", system-ui, sans-serif;
    --font-body: "Inter", system-ui, sans-serif;
    --font-ui: "DM Sans", "Inter", system-ui, sans-serif;
  }
  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  body {
    font-family: var(--font-body);
    color: var(--ink);
    background: #fff;
    -webkit-font-smoothing: antialiased;
    letter-spacing: -0.01em;
  }
  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }

  /* ============ Header ============ */
  header.site { border-bottom: 1px solid var(--border); background: #fff; position: sticky; top: 0; z-index: 50; }
  .nav { max-width: 1380px; margin: 0 auto; padding: 16px 32px; display: flex; align-items: center; gap: 32px; }
  .logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 600; font-size: 20px; letter-spacing: -0.02em; }
  .logo-mark { width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--burgundy), var(--pink) 90%); display: inline-flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 16px; font-family: var(--font-body); }
  .nav-links { display: flex; gap: 28px; flex: 1; margin-left: 16px; }
  .nav-links a { font: 500 15px/1 var(--font-body); color: var(--ink); display: flex; align-items: center; gap: 4px; }
  .nav-actions { display: flex; align-items: center; gap: 12px; }
  .globe { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border); display: inline-flex; align-items: center; justify-content: center; color: var(--graphite); }
  .btn { appearance: none; border: 1px solid var(--ink); background: transparent; color: var(--ink); border-radius: 100px; padding: 10px 18px; font: 500 14px/1 var(--font-body); cursor: pointer; letter-spacing: -0.01em; }
  .btn-dark { background: #000; color: #fff; border-color: #000; }

  /* ============ Hero ============ */
  .hero { max-width: 1380px; margin: 0 auto; padding: 56px 32px 28px; }
  .eyebrow { font: 600 13px/1 var(--font-ui); color: var(--burgundy); text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 16px; display: inline-flex; align-items: center; gap: 8px; }
  .eyebrow::before { content: ""; width: 22px; height: 1.5px; background: var(--pink); display: inline-block; }
  .hero h1 { font-family: var(--font-display); font-weight: 500; font-size: 54px; line-height: 1.04; letter-spacing: -0.03em; margin: 0 0 18px; color: var(--ink); max-width: 880px; }
  .hero p { color: var(--graphite); font-size: 18px; line-height: 1.6; max-width: 680px; margin: 0; }

  /* ============ Calculator layout ============ */
  .calc { max-width: 1380px; margin: 18px auto 0; padding: 0 32px 72px; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 28px; align-items: start; }

  /* input card */
  .panel { background: #fff; border: 1px solid var(--border); border-radius: 22px; overflow: hidden; }
  .panel-head { padding: 24px 30px; border-bottom: 1px solid var(--border); display: flex; align-items: baseline; justify-content: space-between; }
  .panel-head h2 { font-family: var(--font-display); font-weight: 600; font-size: 20px; letter-spacing: -0.02em; margin: 0; }
  .panel-head .step { font: 500 12px/1 var(--font-ui); color: var(--mute); text-transform: uppercase; letter-spacing: 0.1em; }
  .panel-body { padding: 26px 30px 30px; }

  .field { margin-bottom: 22px; }
  .field:last-child { margin-bottom: 0; }
  .field > label { display: block; font: 600 13px/1.2 var(--font-ui); color: var(--ink); margin-bottom: 9px; }
  .field .hint { font: 400 12.5px/1.4 var(--font-body); color: var(--mute); margin-top: 7px; }

  .control { position: relative; }
  select, input[type="number"] {
    width: 100%; appearance: none; font: 500 16px/1 var(--font-body); color: var(--ink);
    background: var(--bone-50); border: 1px solid var(--border); border-radius: 12px;
    padding: 14px 16px; outline: none; transition: border-color 140ms ease, box-shadow 140ms ease;
  }
  select { padding-right: 40px; cursor: pointer; }
  select:focus, input[type="number"]:focus { border-color: var(--burgundy); box-shadow: 0 0 0 3px rgba(96,15,49,0.08); background: #fff; }
  .control .chev { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); pointer-events: none; color: var(--graphite); }
  .control .unit { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); font: 500 13px/1 var(--font-ui); color: var(--mute); pointer-events: none; }
  .control.has-prefix input { padding-left: 30px; }
  .control .prefix { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); font: 500 16px/1 var(--font-body); color: var(--graphite); pointer-events: none; }

  .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

  /* segmented toggle */
  .seg { display: inline-flex; background: var(--bone-100); border: 1px solid var(--border); border-radius: 100px; padding: 3px; gap: 2px; }
  .seg button { appearance: none; border: none; background: transparent; font: 500 13px/1 var(--font-ui); color: var(--graphite); padding: 9px 16px; border-radius: 100px; cursor: pointer; transition: all 140ms ease; white-space: nowrap; }
  .seg button.on { background: #fff; color: var(--ink); box-shadow: 0 1px 3px rgba(0,0,0,0.08); }

  /* advanced accordion */
  .adv { margin-top: 6px; border-top: 1px solid var(--border); }
  .adv-toggle { width: 100%; appearance: none; background: transparent; border: none; cursor: pointer; padding: 20px 0 0; display: flex; align-items: center; justify-content: space-between; font: 600 14px/1 var(--font-ui); color: var(--ink); }
  .adv-toggle .arw { transition: transform 200ms ease; color: var(--graphite); }
  .adv.open .adv-toggle .arw { transform: rotate(90deg); }
  .adv-body { max-height: 0; overflow: hidden; transition: max-height 320ms ease; }
  .adv.open .adv-body { max-height: 920px; }
  .adv-inner { padding-top: 20px; }
  .mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
  .mini { }
  .mini label { display: block; font: 500 12px/1.2 var(--font-ui); color: var(--graphite); margin-bottom: 6px; }
  .mini .control input { padding: 10px 12px; font-size: 14px; }
  .mini .control.has-prefix input { padding-left: 26px; }
  .mini .control .prefix, .mini .control .unit { font-size: 14px; }
  .sub-label { font: 600 11px/1 var(--font-ui); text-transform: uppercase; letter-spacing: 0.1em; color: var(--mute); margin: 22px 0 14px; }
  .sub-label:first-child { margin-top: 0; }

  /* ============ Results card ============ */
  .results { position: sticky; top: 96px; }
  .res-card { background: var(--burgundy); border-radius: 22px; padding: 32px 34px; color: #fff; position: relative; overflow: hidden; }
  .res-card::before { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; right: -160px; top: -200px; background: radial-gradient(circle, rgba(213,26,104,0.35), transparent 65%); pointer-events: none; }
  .res-top { position: relative; display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
  .res-label { font: 600 12px/1.3 var(--font-ui); text-transform: uppercase; letter-spacing: 0.1em; color: rgba(255,255,255,0.7); }
  .badge { font: 600 11px/1 var(--font-ui); text-transform: uppercase; letter-spacing: 0.08em; padding: 7px 12px; border-radius: 100px; background: rgba(255,255,255,0.14); border: 1px solid rgba(255,255,255,0.2); color: #fff; white-space: nowrap; }
  .res-label { max-width: 200px; }
  .big { position: relative; font-family: var(--font-display); font-weight: 600; font-size: 68px; line-height: 1; letter-spacing: -0.03em; margin: 22px 0 6px; }
  .big .cur { font-size: 34px; vertical-align: top; font-weight: 500; opacity: 0.8; margin-right: 2px; }
  .big-sub { position: relative; font: 500 14px/1.4 var(--font-body); color: rgba(255,255,255,0.75); }
  .est-tag { position: relative; display: inline-flex; align-items: center; gap: 7px; margin-top: 14px; font: 500 12px/1.4 var(--font-ui); color: rgba(255,255,255,0.72); padding: 7px 13px 7px 11px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.16); border-radius: 100px; }
  .est-tag::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--pink); flex-shrink: 0; }
  .res-split { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 26px; }
  .res-mini { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: 14px; padding: 16px 18px; }
  .res-mini .v { font-family: var(--font-display); font-weight: 600; font-size: 26px; letter-spacing: -0.02em; }
  .res-mini .l { font: 500 12px/1.2 var(--font-ui); color: rgba(255,255,255,0.65); margin-top: 5px; text-transform: uppercase; letter-spacing: 0.06em; }
  .res-foot { position: relative; margin-top: 22px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.14); display: flex; align-items: center; gap: 10px; font: 500 13.5px/1.45 var(--font-body); color: rgba(255,255,255,0.85); }
  .res-foot strong { color: #fff; font-weight: 600; }

  /* breakdown */
  .breakdown { background: #fff; border: 1px solid var(--border); border-radius: 22px; margin-top: 22px; overflow: hidden; }
  .bd-head { padding: 22px 30px 18px; border-bottom: 1px solid var(--border); }
  .bd-head h3 { font-family: var(--font-display); font-weight: 600; font-size: 17px; letter-spacing: -0.02em; margin: 0; }
  .bd-head p { margin: 5px 0 0; font: 400 12.5px/1.4 var(--font-body); color: var(--mute); }
  .bd-rows { padding: 8px 30px 14px; }
  .bd-row { display: grid; grid-template-columns: 14px 1fr auto; align-items: center; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--bone-100); }
  .bd-row:last-of-type { border-bottom: none; }
  .bd-dot { width: 9px; height: 9px; border-radius: 3px; }
  .dot-goods { background: var(--burgundy); }
  .dot-freight { background: #C98A2E; }
  .dot-tax { background: var(--pink); }
  .dot-margin { background: #6B8E6B; }
  .bd-k { font: 500 14px/1.3 var(--font-body); color: var(--ink); }
  .bd-v { font: 600 14px/1 var(--font-ui); color: var(--ink); font-variant-numeric: tabular-nums; }
  .bd-total { display: flex; align-items: center; justify-content: space-between; padding: 18px 30px; background: var(--bone-50); border-top: 1px solid var(--border); }
  .bd-total .k { font: 600 14px/1 var(--font-ui); color: var(--ink); }
  .bd-total .v { font-family: var(--font-display); font-weight: 600; font-size: 22px; letter-spacing: -0.02em; color: var(--burgundy); font-variant-numeric: tabular-nums; }
  .bd-bar { display: flex; height: 8px; border-radius: 5px; overflow: hidden; margin: 4px 30px 0; }
  .bd-bar span { height: 100%; }
  .bd-legend { display: flex; flex-wrap: wrap; gap: 8px 18px; padding: 16px 30px 22px; }
  .lg { display: inline-flex; align-items: center; gap: 7px; font: 500 12px/1 var(--font-ui); color: var(--graphite); }
  .lg i { width: 9px; height: 9px; border-radius: 3px; display: inline-block; }

  /* gate */
  .bd-gated { position: relative; }
  .breakdown.locked .bd-bar,
  .breakdown.locked .bd-rows,
  .breakdown.locked .bd-total,
  .breakdown.locked .bd-legend { filter: blur(7px); opacity: 0.5; pointer-events: none; user-select: none; }
  .breakdown:not(.locked) .bd-lock { display: none; }
  .bd-lock { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 28px 34px; background: linear-gradient(180deg, rgba(255,255,255,0.72), rgba(255,255,255,0.94) 40%); }
  .lock-ico { width: 46px; height: 46px; border-radius: 14px; background: var(--burgundy); color: #fff; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; box-shadow: 0 10px 24px rgba(96,15,49,0.28); }
  .bd-lock h4 { font-family: var(--font-display); font-weight: 600; font-size: 20px; letter-spacing: -0.02em; margin: 0 0 8px; color: var(--ink); }
  .bd-lock p { font: 400 13.5px/1.5 var(--font-body); color: var(--graphite); margin: 0 0 18px; max-width: 340px; }
  .lock-form { display: flex; gap: 8px; width: 100%; max-width: 380px; }
  .lock-form input { flex: 1; font: 500 15px/1 var(--font-body); color: var(--ink); background: #fff; border: 1px solid var(--border); border-radius: 11px; padding: 13px 15px; outline: none; transition: border-color 140ms ease, box-shadow 140ms ease; }
  .lock-form input:focus { border-color: var(--burgundy); box-shadow: 0 0 0 3px rgba(96,15,49,0.08); }
  .lock-form input.bad { border-color: var(--pink); box-shadow: 0 0 0 3px rgba(213,26,104,0.1); }
  .lock-form button { appearance: none; border: none; background: var(--burgundy); color: #fff; font: 600 14px/1 var(--font-ui); padding: 0 20px; border-radius: 11px; cursor: pointer; white-space: nowrap; transition: background 140ms ease; }
  .lock-form button:hover { background: var(--burgundy-deep); }
  .lock-err { font: 500 12.5px/1.3 var(--font-body); color: var(--pink); margin-top: 10px; min-height: 16px; }
  .lock-fine { font: 400 12px/1.3 var(--font-body); color: var(--mute); margin-top: 4px; }

  /* CTA card */
  .cta-card { margin-top: 22px; background: var(--ink); color: #fff; border-radius: 22px; padding: 30px 32px; position: relative; overflow: hidden; }
  .cta-card::before { content: ""; position: absolute; width: 360px; height: 360px; border-radius: 50%; right: -150px; bottom: -180px; background: radial-gradient(circle, rgba(213,26,104,0.4), transparent 65%); pointer-events: none; }
  .cta-eyebrow { position: relative; font: 600 12px/1 var(--font-ui); text-transform: uppercase; letter-spacing: 0.1em; color: var(--pink); margin-bottom: 12px; }
  .cta-eyebrow.ok { color: #6FCF97; }
  .cta-card h4 { position: relative; font-family: var(--font-display); font-weight: 600; font-size: 24px; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 8px; }
  .cta-card p { position: relative; font: 400 14px/1.55 var(--font-body); color: rgba(255,255,255,0.75); margin: 0 0 20px; max-width: 420px; }
  .cta-card p strong, .cta-card h4 span { color: #fff; }
  .cta-btn { position: relative; appearance: none; border: none; cursor: pointer; background: #fff; color: var(--ink); font: 600 15px/1 var(--font-ui); padding: 14px 22px; border-radius: 100px; display: inline-flex; align-items: center; gap: 10px; transition: transform 140ms ease, background 140ms ease; }
  .cta-btn:hover { transform: translateY(-1px); }
  .cta-btn.ghost { background: transparent; border: 1px solid rgba(255,255,255,0.3); color: #fff; margin-top: 18px; }
  .cta-btn.ghost:hover { background: rgba(255,255,255,0.1); }
  .match-list { position: relative; display: grid; gap: 1px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.12); border-radius: 12px; overflow: hidden; margin: 4px 0 16px; }
  .match-row { display: grid; grid-template-columns: 30px 1fr auto; align-items: center; gap: 12px; padding: 12px 14px; background: rgba(34,24,24,0.6); }
  .match-row .mflag { width: 26px; height: 26px; border-radius: 7px; display: flex; align-items: center; justify-content: center; font: 700 10px/1 var(--font-ui); color: #fff; }
  .match-row .mname { font: 600 14px/1.2 var(--font-ui); color: #fff; }
  .match-row .mmeta { font: 400 12px/1.3 var(--font-body); color: rgba(255,255,255,0.6); margin-top: 2px; }
  .match-row .mtag { font: 500 11px/1 var(--font-ui); color: rgba(255,255,255,0.85); background: rgba(255,255,255,0.12); padding: 6px 9px; border-radius: 100px; white-space: nowrap; }
  .match-row.blurred { filter: blur(5px); opacity: 0.6; }
  .match-foot { position: relative; font: 400 13px/1.5 var(--font-body); color: rgba(255,255,255,0.75); }

  /* ============ Methodology ============ */
  .method { max-width: 1380px; margin: 0 auto; padding: 0 32px 80px; }
  .method-inner { background: var(--bone-50); border: 1px solid var(--border); border-radius: 22px; padding: 44px 48px; display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; }
  .method h2 { font-family: var(--font-display); font-weight: 500; font-size: 30px; line-height: 1.12; letter-spacing: -0.025em; margin: 0 0 16px; }
  .method .lead { font: 400 15px/1.65 var(--font-body); color: var(--graphite); margin: 0 0 20px; }
  .maker { display: flex; align-items: center; gap: 12px; padding: 16px 18px; background: #fff; border: 1px solid var(--border); border-radius: 14px; }
  .maker .av { width: 42px; height: 42px; border-radius: 50%; background: linear-gradient(135deg, var(--burgundy), var(--pink)); display: flex; align-items: center; justify-content: center; color: #fff; font: 600 16px/1 var(--font-ui); flex-shrink: 0; }
  .maker .nm { font: 600 14px/1.3 var(--font-ui); color: var(--ink); }
  .maker .rl { font: 400 12.5px/1.3 var(--font-body); color: var(--mute); margin-top: 2px; }
  .notes { display: grid; gap: 16px; }
  .note { display: grid; grid-template-columns: 30px 1fr; gap: 14px; }
  .note .ix { width: 30px; height: 30px; border-radius: 9px; background: #fff; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--burgundy); flex-shrink: 0; }
  .note h4 { font: 600 14.5px/1.3 var(--font-ui); margin: 4px 0 5px; color: var(--ink); }
  .note p { font: 400 13.5px/1.55 var(--font-body); color: var(--graphite); margin: 0; }
  .disclaimer { grid-column: 1 / -1; margin-top: 6px; padding-top: 22px; border-top: 1px solid var(--border); font: 400 12.5px/1.6 var(--font-body); color: var(--mute); }

  /* ============ Footer ============ */
  footer.site { background: var(--burgundy); color: #fff; position: relative; overflow: hidden; }
  footer.site::before { content: ""; position: absolute; width: 760px; height: 760px; border-radius: 50%; right: -240px; top: -320px; background: radial-gradient(circle, rgba(213,26,104,0.22), transparent 65%); pointer-events: none; }
  footer.site::after { content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%; left: -180px; bottom: -240px; background: radial-gradient(circle, rgba(213,26,104,0.12), transparent 65%); pointer-events: none; }
  .foot-brand { max-width: 1380px; margin: 0 auto; padding: 56px 32px 40px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: end; position: relative; border-bottom: 1px solid rgba(255,255,255,0.12); }
  .foot-brand-left .logo { color: #fff; margin-bottom: 20px; font-size: 22px; }
  .foot-brand-left .logo .logo-mark { background: #fff; color: var(--burgundy); }
  .foot-tagline { font-family: var(--font-display); font-weight: 500; font-size: 32px; line-height: 1.15; letter-spacing: -0.025em; margin: 0; max-width: 520px; color: #fff; }
  .foot-tagline em { font-style: normal; color: var(--pink); }
  .foot-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .foot-stat .n { font-family: var(--font-display); font-weight: 500; font-size: 32px; line-height: 1; letter-spacing: -0.025em; color: #fff; }
  .foot-stat .l { font: 500 12px/1.3 var(--font-ui); color: rgba(255,255,255,0.6); margin-top: 6px; text-transform: uppercase; letter-spacing: 0.08em; }
  .foot-inner { max-width: 1380px; margin: 0 auto; padding: 48px 32px 40px; display: grid; grid-template-columns: 1.1fr 1fr 1fr 1fr 1.3fr; gap: 40px; position: relative; }
  .foot-col h4 { font: 600 12px/1 var(--font-ui); color: rgba(255,255,255,0.55); margin: 0 0 20px; text-transform: uppercase; letter-spacing: 0.12em; }
  .foot-col a { display: block; color: rgba(255,255,255,0.85); font: 400 15px/2.1 var(--font-body); transition: color 140ms ease, padding-left 160ms ease; }
  .foot-col a:hover { color: #fff; padding-left: 4px; }
  .foot-contact-row { display: flex; gap: 12px; margin-bottom: 14px; align-items: flex-start; }
  .foot-contact-row .ico { width: 36px; height: 36px; flex-shrink: 0; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.1); display: inline-flex; align-items: center; justify-content: center; color: #fff; }
  .foot-contact-row .txt { font: 400 14px/1.5 var(--font-body); color: rgba(255,255,255,0.85); }
  .foot-contact-row .txt strong { display: block; font: 600 11px/1 var(--font-ui); color: rgba(255,255,255,0.5); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 4px; }
  .foot-contact-row a { display: inline; color: rgba(255,255,255,0.85); }
  .foot-bottom { max-width: 1380px; margin: 0 auto; padding: 22px 32px 32px; border-top: 1px solid rgba(255,255,255,0.12); display: flex; align-items: center; gap: 24px; flex-wrap: wrap; font: 400 13px/1.4 var(--font-body); color: rgba(255,255,255,0.55); position: relative; }
  .foot-bottom .spacer { flex: 1; }
  .foot-bottom-links { display: flex; gap: 20px; }
  .foot-bottom-links a { color: rgba(255,255,255,0.6); transition: color 140ms ease; }
  .foot-bottom-links a:hover { color: #fff; }
  .foot-socials { display: flex; gap: 10px; }
  .foot-social { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); display: inline-flex; align-items: center; justify-content: center; color: #fff; transition: all 160ms ease; }
  .foot-social:hover { background: var(--pink); border-color: var(--pink); transform: translateY(-2px); }

  /* ============ Responsive ============ */
  @media (max-width: 1080px) {
    .calc { grid-template-columns: 1fr; }
    .results { position: static; }
    .method-inner { grid-template-columns: 1fr; gap: 32px; }
    .foot-inner { grid-template-columns: repeat(2, 1fr); }
    .foot-brand { grid-template-columns: 1fr; gap: 32px; }
  }
  @media (max-width: 720px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 38px; }
    .hero, .calc, .method { padding-left: 20px; padding-right: 20px; }
    .big { font-size: 54px; }
    .method-inner { padding: 32px 24px; }
    .foot-stats { grid-template-columns: repeat(2, 1fr); }
  }