:root {
  color-scheme: light;
  --navy: #102b52;
  --navy-2: #173e70;
  --cyan: #049ed1;
  --green: #2f7d24;
  --green-soft: #eaf4e8;
  --ink: #17304d;
  --muted: #617286;
  --line: #d9e3ec;
  --surface: #ffffff;
  --background: #f4f7fa;
  --danger: #a93535;
  --shadow: 0 18px 46px rgba(16, 43, 82, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--background);
  color: var(--ink);
  line-height: 1.5;
}

button, input, select { font: inherit; }

.site-header {
  color: #fff;
  background: linear-gradient(118deg, var(--navy), var(--navy-2));
  border-bottom: 6px solid var(--green);
}

.header-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 38px;
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr) auto;
  align-items: center;
  gap: 32px;
}

.brand-logo {
  width: 170px;
  height: 94px;
  object-fit: contain;
  background: #fff;
  border-radius: 14px;
}

.header-copy h1 {
  margin: 4px 0 8px;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.header-copy p { margin: 0; max-width: 740px; }
.eyebrow { color: #63d3f6; font-size: 0.78rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }

.privacy-note {
  align-self: start;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 13px;
  border: 1px solid rgba(255,255,255,.32);
  border-radius: 999px;
  font-size: .78rem;
  white-space: nowrap;
}

.privacy-dot { width: 9px; height: 9px; border-radius: 50%; background: #72cf62; box-shadow: 0 0 0 4px rgba(114,207,98,.16); }

main {
  width: min(1180px, calc(100% - 40px));
  margin: 34px auto;
  display: grid;
  gap: 28px;
}

.workspace-section, .results-section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 24px;
}

.section-heading h2 { margin: 3px 0 4px; font-size: clamp(1.45rem, 3vw, 2.2rem); line-height: 1.1; }
.section-heading p, .cost-group-heading p, .saved-heading p { margin: 4px 0 0; color: var(--muted); }
.step { color: var(--green); font-size: .78rem; font-weight: 900; letter-spacing: .14em; }

.button-row { display: flex; flex-wrap: wrap; gap: 9px; }
.button {
  border: 0;
  border-radius: 10px;
  min-height: 42px;
  padding: 10px 15px;
  font-weight: 760;
  cursor: pointer;
  transition: transform .15s ease, filter .15s ease;
}
.button:hover { transform: translateY(-1px); filter: brightness(.98); }
.button:disabled { opacity: .5; cursor: not-allowed; transform: none; filter: none; }
.button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid rgba(4,158,209,.25); outline-offset: 2px; }
.button-primary { color: #fff; background: var(--green); }
.button-secondary { color: var(--navy); background: #edf3f8; }
.button-ghost { color: var(--navy); background: transparent; border: 1px solid var(--line); }
.button-danger { color: var(--danger); background: #fff1f1; }

.form-grid { display: grid; gap: 16px; }
.identity-grid { grid-template-columns: 1fr 1.5fr 1.5fr 1fr; }
.purchase-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.span-2 { grid-column: span 2; }

label { display: grid; gap: 7px; color: var(--ink); font-size: .86rem; font-weight: 730; }
input, select {
  width: 100%;
  min-height: 44px;
  border: 1px solid #c8d4de;
  border-radius: 9px;
  padding: 10px 12px;
  background: #fff;
  color: var(--ink);
}
input::placeholder { color: #9aa8b5; }
.field-help { color: var(--muted); font-size: .74rem; font-weight: 520; line-height: 1.35; }

.subsection { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.subsection h3, .cost-group h3, .action-panel h3, .saved-products h3 { margin: 0; font-size: 1.12rem; }

.tax-guidance {
  margin-top: 16px;
  display: grid;
  gap: 3px;
  padding: 13px 16px;
  border-radius: 9px;
  color: var(--ink);
  background: #eef7fb;
  border-left: 4px solid var(--cyan);
  font-size: .82rem;
}
.tax-guidance span { color: var(--muted); }

.micro-metrics {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  padding: 15px 18px;
  background: var(--green-soft);
  border-left: 4px solid var(--green);
  border-radius: 9px;
  font-size: .9rem;
}

.cost-group { padding: 22px 0; border-top: 1px solid var(--line); }
.cost-group:first-of-type { border-top: 0; }
.cost-group-heading { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 14px; }

.table-wrap { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 830px; }
th { color: var(--muted); font-size: .76rem; text-align: left; text-transform: uppercase; letter-spacing: .045em; background: #f4f7fa; }
th, td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
td input { min-width: 92px; min-height: 39px; padding: 8px 9px; }
td:first-child input { min-width: 170px; }
.row-cost { white-space: nowrap; font-weight: 820; color: var(--navy); }
.delete-row { min-height: 36px; padding: 7px 11px; }
.empty-row { color: var(--muted); text-align: center; padding: 26px; }

.results-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 22px; }
.result-main { min-width: 0; }
.result-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  overflow: hidden;
  border-radius: 14px;
  background: rgba(255,255,255,.2);
  border: 1px solid var(--navy);
}
.result-hero > div { padding: 24px; background: var(--navy); color: #fff; }
.result-hero span { display: block; font-size: .82rem; color: #b7d8ee; }
.result-hero strong { display: block; margin-top: 4px; font-size: clamp(1.7rem, 4vw, 2.65rem); line-height: 1.05; }

.decision-panel {
  margin-top: 15px;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 16px;
  align-items: end;
  padding: 17px;
  border: 1px solid #bcd7b7;
  border-radius: 13px;
  background: var(--green-soft);
}
.decision-metric { min-height: 67px; padding: 10px 12px; border-radius: 9px; background: #fff; }
.decision-metric span { display: block; color: var(--muted); font-size: .76rem; }
.decision-metric strong { display: block; margin-top: 3px; color: var(--navy); font-size: 1.18rem; }
.decision-panel p { grid-column: 1 / -1; margin: -3px 0 0; color: var(--muted); font-size: .78rem; }

.result-grid { margin-top: 15px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: 13px; overflow: hidden; }
.result-grid > div { padding: 15px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.result-grid > div:nth-child(4n) { border-right: 0; }
.result-grid span { display: block; color: var(--muted); font-size: .76rem; }
.result-grid strong { display: block; margin-top: 3px; font-size: 1.1rem; }

.action-panel { display: grid; align-content: start; gap: 10px; padding: 20px; border-radius: 14px; background: #f4f7fa; border: 1px solid var(--line); }
.action-panel h3 { margin-bottom: 6px; }
.action-panel .button { width: 100%; text-align: left; }
.warning { color: var(--danger); font-weight: 700; margin: 14px 0 0; }

.saved-products { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.saved-heading { margin-bottom: 12px; }
.saved-actions { display: flex; gap: 7px; flex-wrap: wrap; }

footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto 34px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: .8rem;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  max-width: min(360px, calc(100% - 44px));
  padding: 13px 16px;
  border-radius: 10px;
  color: #fff;
  background: var(--navy);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}
.toast.show { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .header-inner { grid-template-columns: 130px 1fr; }
  .brand-logo { width: 130px; }
  .privacy-note { grid-column: 1 / -1; justify-self: start; }
  .identity-grid, .purchase-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .results-layout { grid-template-columns: 1fr; }
  .action-panel { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .action-panel h3 { grid-column: 1 / -1; }
  .result-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .decision-panel { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .result-grid > div:nth-child(2n) { border-right: 0; }
}

@media (max-width: 620px) {
  .header-inner { width: min(100% - 28px, 1180px); padding: 24px 0 28px; grid-template-columns: 1fr; gap: 16px; }
  .brand-logo { width: 145px; height: 78px; }
  main, footer { width: min(100% - 24px, 1180px); }
  .workspace-section, .results-section { padding: 20px; border-radius: 14px; }
  .section-heading, .cost-group-heading { flex-direction: column; align-items: stretch; }
  .identity-grid, .purchase-grid, .result-hero, .result-grid, .decision-panel, .action-panel { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .result-grid > div { border-right: 0; }
  .decision-panel p { grid-column: auto; }
  .button-row .button { flex: 1; }
  footer { flex-direction: column; gap: 4px; }
}

@media print {
  body { background: #fff; }
  .site-header { border-bottom-width: 3px; }
  .header-inner, main, footer { width: 100%; }
  .header-inner { padding-inline: 18px; }
  main { margin: 14px auto; gap: 14px; }
  .workspace-section, .results-section { box-shadow: none; break-inside: avoid; border-radius: 0; }
  .no-print, .toast { display: none !important; }
  .table-wrap { overflow: visible; }
  table { min-width: 0; font-size: 10px; }
  th, td { padding: 5px; }
  input, select { border: 0; padding: 0; min-height: auto; }
}