:root {
  --ink: #172033;
  --muted: #5d677a;
  --line: #d7dee8;
  --panel: #ffffff;
  --page: #f4f7fb;
  --blue: #2563eb;
  --green: #0f766e;
  --amber: #b45309;
  --coral: #c2410c;
  --navy: #111827;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 15px;
  min-height: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 18px;
}

body {
  background: var(--page);
  color: var(--ink);
  font-family: "Segoe UI", "Noto Sans TC", Arial, sans-serif;
  margin: 0;
}

a {
  color: var(--blue);
}

.app-navbar {
  background: #ffffff;
  border-bottom: 1px solid var(--line);
  min-height: 64px;
  padding: 0 1rem;
}

.app-navbar .container-fluid {
  gap: 12px;
}

.navbar-brand {
  color: var(--navy);
  font-weight: 700;
  letter-spacing: 0;
  white-space: normal;
}

.navbar-nav .nav-link {
  color: var(--muted);
  font-weight: 600;
  padding-left: 0.7rem;
  padding-right: 0.7rem;
}

.navbar-nav .nav-link:hover {
  color: var(--blue);
}

.language-switcher {
  background: #f8fafc;
  border: 1px solid #d7dee8;
  border-radius: 999px;
  display: inline-flex;
  flex: 0 0 auto;
  gap: 2px;
  margin-left: auto;
  padding: 3px;
}

.language-switcher button {
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
  min-height: 30px;
  padding: 4px 10px;
}

.language-switcher button.is-active {
  background: var(--blue);
  color: #ffffff;
}

.language-switcher button:focus {
  box-shadow: 0 0 0 0.18rem rgba(37, 99, 235, 0.18);
  outline: 0;
}

.provider-banner {
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.provider-banner-inner {
  align-items: center;
  display: flex;
  gap: 18px;
  min-height: 76px;
  padding-bottom: 12px;
  padding-top: 12px;
}

.provider-logo-link {
  display: inline-flex;
  flex: 0 0 auto;
}

.provider-logo-link img {
  display: block;
  height: auto;
  max-height: 48px;
  max-width: min(300px, 52vw);
  width: auto;
}

.provider-copy {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  line-height: 1.45;
}

.provider-copy span {
  color: var(--ink);
  font-weight: 800;
}

.provider-copy a {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 800;
  padding: 7px 12px;
  text-decoration: none;
}

.provider-copy a:hover {
  border-color: var(--blue);
}

.app-container {
  margin: 0 auto;
  max-width: 1240px;
  padding: 0 24px;
  width: 100%;
}

.summary-band {
  background: linear-gradient(115deg, #102033 0%, #163847 54%, #155e75 100%);
  color: #ffffff;
  padding: 38px 0 30px;
}

.summary-grid {
  align-items: start;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr);
}

.eyebrow,
.section-kicker {
  color: #0f766e;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 0 0 8px;
  text-transform: uppercase;
}

.summary-title .eyebrow {
  color: #8de3d8;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  font-size: 2.6rem;
  font-weight: 750;
  line-height: 1.08;
  margin: 0;
}

h2 {
  font-size: 1.22rem;
  font-weight: 750;
  margin: 0;
}

h3 {
  font-size: 0.98rem;
  font-weight: 750;
  margin: 0 0 4px;
}

.summary-copy {
  color: #dbeafe;
  line-height: 1.7;
  margin: 16px 0 0;
  max-width: 720px;
}

.metric-strip {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  padding: 16px;
}

.metric span,
.totals-grid span {
  color: inherit;
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  opacity: 0.72;
}

.metric strong {
  display: block;
  font-size: 1.55rem;
  line-height: 1.15;
  margin-top: 8px;
}

.metric.accent {
  background: rgba(15, 118, 110, 0.42);
}

.cost-workspace {
  display: grid;
  gap: 22px;
  padding-bottom: 44px;
  padding-top: 26px;
}

.procurement-panel,
.purchase-mode-panel,
.task-type-panel,
.input-panel,
.assumption-panel,
.results-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 42px rgba(15, 23, 42, 0.06);
}

.procurement-panel {
  align-items: start;
  display: grid;
  gap: 22px;
  grid-template-columns: 280px minmax(0, 1fr);
  padding: 22px;
}

.task-type-panel {
  padding: 22px;
}

.purchase-mode-panel {
  padding: 22px;
}

.purchase-mode-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.purchase-mode-card {
  align-content: start;
  background: #fbfdff;
  border: 1px solid #d7e7f7;
  border-radius: 8px;
  display: grid;
  gap: 12px;
  padding: 18px;
}

.purchase-mode-card.p3 {
  border-color: #c9eadf;
}

.purchase-mode-heading {
  align-items: start;
  display: flex;
  gap: 14px;
  justify-content: space-between;
}

.purchase-mode-heading span {
  color: var(--blue);
  font-size: 1.08rem;
  font-weight: 850;
}

.purchase-mode-card.p3 .purchase-mode-heading span {
  color: var(--green);
}

.purchase-mode-heading strong {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 7px;
  color: #1d4ed8;
  font-size: 0.92rem;
  padding: 8px 10px;
  text-align: right;
  white-space: nowrap;
}

.purchase-mode-card.p3 .purchase-mode-heading strong {
  background: #ecfdf5;
  border-color: #99f6e4;
  color: var(--green);
}

.purchase-mode-card p,
.purchase-mode-card li,
.purchase-mode-note {
  color: var(--muted);
  line-height: 1.6;
}

.purchase-mode-card p,
.purchase-mode-note {
  margin: 0;
}

.purchase-mode-card ul {
  margin: 0;
  padding-left: 20px;
}

.p3-sku-table-wrap {
  border: 1px solid #d8e8e2;
  border-radius: 8px;
  overflow: hidden;
}

.p3-sku-table {
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
  width: 100%;
}

.p3-sku-table caption {
  background: #ecfdf5;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 850;
  padding: 10px 12px;
  text-align: left;
}

.p3-sku-table th,
.p3-sku-table td {
  border-top: 1px solid #e3eee9;
  padding: 8px 10px;
  text-align: right;
}

.p3-sku-table th:first-child,
.p3-sku-table td:first-child {
  text-align: left;
  width: 64px;
}

.p3-sku-table th {
  background: #f8fafc;
  color: #334155;
  font-size: 0.75rem;
  font-weight: 850;
  text-transform: uppercase;
}

.p3-sku-table td {
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
}

.purchase-mode-note {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 7px;
  color: #9a3412;
  font-weight: 700;
  margin-top: 14px;
  padding: 12px 14px;
}

.task-type-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.task-cost-note {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 7px;
  color: #1e3a8a;
  font-weight: 750;
  line-height: 1.55;
  margin: 14px 0 0;
  padding: 12px 14px;
}

.task-cost-note strong {
  color: var(--blue);
  font-weight: 850;
}

.task-type-card {
  background: #fbfdff;
  border: 1px solid #e1e8f2;
  border-radius: 8px;
  display: grid;
  gap: 14px;
  padding: 18px;
}

.task-type-heading {
  align-items: center;
  display: flex;
  gap: 12px;
}

.task-type-heading h3 {
  color: #1f2937;
  font-size: 1.05rem;
  margin: 0;
}

.task-type-card.light .task-type-heading h3 {
  color: #b91fa8;
}

.task-type-card.medium .task-type-heading h3 {
  color: #2563eb;
}

.task-type-card.heavy .task-type-heading h3 {
  color: #5b3a96;
}

.task-icon {
  align-items: end;
  background: #eef7fb;
  border: 1px solid #b8c4ce;
  border-radius: 7px;
  display: inline-flex;
  flex: 0 0 auto;
  gap: 5px;
  height: 42px;
  justify-content: center;
  padding: 9px 8px;
  width: 48px;
}

.task-icon i {
  background: #b8c0c7;
  border-radius: 3px 3px 1px 1px;
  display: block;
  width: 8px;
}

.task-icon i:nth-child(1) {
  height: 14px;
}

.task-icon i:nth-child(2) {
  height: 21px;
}

.task-icon i:nth-child(3) {
  height: 28px;
}

.task-type-card.light .task-icon i:nth-child(1) {
  background: #c026b4;
}

.task-type-card.medium .task-icon i:nth-child(1),
.task-type-card.medium .task-icon i:nth-child(2) {
  background: #2563eb;
}

.task-type-card.heavy .task-icon i {
  background: #5b3a96;
}

.task-type-card p,
.task-type-card li {
  color: var(--muted);
  line-height: 1.55;
}

.task-type-card > p {
  margin: 0;
}

.task-type-card ul {
  margin: 0;
  padding-left: 20px;
}

.prompt-example {
  border-top: 1px solid #e5eaf1;
  display: grid;
  gap: 8px;
  padding-top: 12px;
}

.prompt-example span,
.credit-range span {
  color: #334155;
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.prompt-example p {
  background: #ffffff;
  border: 1px solid #d5dce6;
  border-radius: 7px;
  color: #5f6b7a;
  font-style: italic;
  margin: 0;
  min-height: 112px;
  padding: 12px;
}

.credit-range {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-top: auto;
}

.credit-range strong {
  background: #e6f4fb;
  border: 1px solid #c5d7e1;
  border-radius: 7px;
  color: #24466f;
  font-size: 1.08rem;
  min-width: 102px;
  padding: 9px 12px;
  text-align: center;
}

.procurement-list {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.procurement-list article {
  border-left: 3px solid var(--green);
  display: grid;
  gap: 12px;
  grid-template-columns: auto 1fr;
  padding-left: 14px;
}

.procurement-list p,
.persona-copy small,
.assumption-item small,
.source-note {
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

.step-number {
  align-items: center;
  background: #dff5ef;
  border-radius: 999px;
  color: var(--green);
  display: inline-flex;
  font-weight: 800;
  height: 30px;
  justify-content: center;
  width: 30px;
}

.calculator-layout {
  align-items: start;
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1fr) 390px;
}

.main-stack {
  align-content: start;
  display: grid;
  gap: 16px;
}

.side-stack {
  align-content: start;
  display: grid;
  gap: 16px;
  position: sticky;
  top: 82px;
}

.input-panel,
.assumption-panel,
.results-panel {
  padding: 22px;
}

.panel-heading {
  align-items: center;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin-bottom: 18px;
}

.panel-heading.compact {
  margin-bottom: 12px;
}

.text-link {
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
}

.persona-table,
.result-table {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.persona-row,
.result-row {
  align-items: center;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 14px;
  padding: 14px;
}

.persona-row {
  grid-template-columns: minmax(260px, 1fr) repeat(4, minmax(92px, 0.35fr));
}

.result-row {
  grid-template-columns: minmax(260px, 1fr) repeat(4, minmax(120px, 0.45fr));
}

.persona-row:first-child,
.result-row:first-child {
  border-top: 0;
}

.persona-head,
.result-head {
  background: #eef4fb;
  color: #334155;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.persona-row label,
.purchase-inputs label,
.discount-field {
  display: grid;
  gap: 6px;
}

.persona-row label span {
  color: var(--muted);
  display: none;
  font-size: 0.78rem;
  font-weight: 700;
}

.persona-copy {
  display: grid;
  gap: 4px;
}

.persona-copy strong,
.result-row strong {
  font-weight: 750;
}

.form-control {
  border: 1px solid #cbd5e1;
  border-radius: 7px;
  color: var(--ink);
  min-height: 42px;
}

.form-control:focus,
.primary-action:focus,
.billing-toggle input:focus + label {
  border-color: var(--blue);
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.16);
}

.assumption-group,
.purchase-inputs {
  display: grid;
  gap: 12px;
}

.main-stack .assumption-group {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.assumption-item {
  align-items: center;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr) 98px;
  padding: 12px;
}

.assumption-item span {
  display: grid;
  gap: 2px;
}

.purchase-inputs {
  margin-top: 16px;
}

.assumption-purchase-inputs {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.billing-grid {
  align-items: end;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 0.9fr) minmax(230px, 0.7fr) minmax(150px, 0.35fr);
  margin-top: 16px;
}

.purchase-inputs span,
.p3-sku-field span,
.discount-field span {
  color: #334155;
  font-size: 0.84rem;
  font-weight: 750;
}

.p3-sku-field {
  display: grid;
  gap: 6px;
}

.billing-toggle {
  border: 0;
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 0;
}

.billing-toggle legend {
  color: #334155;
  font-size: 0.84rem;
  font-weight: 750;
  grid-column: 1 / -1;
  margin: 0;
}

.billing-toggle input {
  opacity: 0;
  position: absolute;
}

.billing-toggle label {
  align-items: flex-start;
  border: 1px solid #cbd5e1;
  border-radius: 7px;
  cursor: pointer;
  display: flex;
  font-weight: 750;
  justify-content: flex-start;
  min-height: 46px;
  padding: 10px 12px;
  text-align: left;
}

.billing-toggle input:checked + label {
  background: #dff5ef;
  border-color: var(--green);
  color: var(--green);
}

.primary-action {
  background: var(--blue);
  border: 0;
  border-radius: 7px;
  color: #ffffff;
  font-weight: 800;
  margin-top: 18px;
  min-height: 46px;
  width: 100%;
}

.inline-note {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 7px;
  color: #1e40af;
  font-size: 0.86rem;
  font-weight: 700;
  line-height: 1.5;
  margin: 16px 0 0;
  padding: 10px 12px;
}

.p3-sku-field.is-disabled,
.discount-field.is-disabled {
  opacity: 0.58;
}

.result-badge {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 999px;
  color: var(--coral);
  font-weight: 800;
  padding: 8px 13px;
}

.quick-results-panel {
  border-color: #9bd8d2;
}

.quick-metrics {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.quick-metrics div {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  min-width: 0;
  padding: 13px;
}

.quick-metrics .quick-primary {
  background: #ecfdf5;
  border-color: #99f6e4;
  grid-column: 1 / -1;
}

.quick-metrics span {
  color: var(--muted);
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
}

.quick-metrics strong {
  display: block;
  font-size: 1.22rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.12;
  margin-top: 7px;
  overflow-wrap: anywhere;
}

.quick-metrics .quick-primary strong {
  color: var(--green);
  font-size: 1.9rem;
}

.p3-fit-panel {
  background: #f8fafc;
  border: 1px solid #dbe7f3;
  border-radius: 8px;
  display: grid;
  gap: 12px;
  margin-top: 12px;
  padding: 14px;
}

.p3-fit-panel.is-hidden {
  display: none;
}

.p3-fit-panel.is-waste {
  background: #fff7ed;
  border-color: #fed7aa;
}

.p3-fit-panel.is-overage {
  background: #fef2f2;
  border-color: #fecaca;
}

.p3-fit-panel.is-balanced {
  background: #ecfdf5;
  border-color: #99f6e4;
}

.p3-fit-heading {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.p3-fit-heading span {
  color: #334155;
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.p3-fit-heading strong {
  background: #ffffff;
  border: 1px solid #d7dee8;
  border-radius: 999px;
  color: var(--green);
  font-size: 0.86rem;
  padding: 6px 10px;
}

.p3-fit-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.p3-fit-grid div {
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 7px;
  min-width: 0;
  padding: 10px;
}

.p3-fit-grid span {
  color: var(--muted);
  display: block;
  font-size: 0.74rem;
  font-weight: 800;
}

.p3-fit-grid strong {
  color: var(--ink);
  display: block;
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  margin-top: 5px;
  overflow-wrap: anywhere;
}

.p3-fit-panel p {
  color: #334155;
  font-size: 0.84rem;
  font-weight: 700;
  line-height: 1.5;
  margin: 0;
}

.result-row > span {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.usage-bar {
  background: #e5e7eb;
  border-radius: 999px;
  display: block;
  height: 7px;
  margin-top: 8px;
  overflow: hidden;
}

.usage-bar span {
  background: linear-gradient(90deg, var(--blue), var(--green));
  display: block;
  height: 100%;
}

.totals-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 16px;
}

.quick-totals {
  grid-template-columns: 1fr;
  margin-top: 12px;
}

.totals-grid div {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 14px;
}

.totals-grid strong {
  display: block;
  font-size: 1.25rem;
  font-variant-numeric: tabular-nums;
  margin-top: 8px;
}

.totals-grid .total-emphasis {
  background: #ecfdf5;
  border-color: #99f6e4;
}

.source-note {
  border-top: 1px solid var(--line);
  margin-top: 18px;
  padding-top: 16px;
}

.official-links-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 42px rgba(15, 23, 42, 0.06);
  padding: 22px;
}

.official-link-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 16px;
}

.official-link-grid a {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  color: inherit;
  display: grid;
  gap: 6px;
  padding: 14px;
  text-decoration: none;
}

.official-link-grid a:hover {
  border-color: var(--blue);
}

.official-link-grid span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.official-link-grid strong {
  color: var(--blue);
  font-size: 0.98rem;
  line-height: 1.35;
}

.app-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 24px 0;
}

@media (max-width: 1060px) {
  .summary-grid,
  .calculator-layout,
  .procurement-panel {
    grid-template-columns: 1fr;
  }

  .procurement-list {
    grid-template-columns: 1fr;
  }

  .purchase-mode-grid {
    grid-template-columns: 1fr;
  }

  .task-type-grid {
    grid-template-columns: 1fr;
  }

  .official-link-grid {
    grid-template-columns: 1fr;
  }

  .side-stack {
    position: static;
  }

  .main-stack .assumption-group,
  .assumption-purchase-inputs,
  .billing-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .app-container {
    padding: 0 14px;
  }

  .summary-band {
    padding: 28px 0 22px;
  }

  .provider-banner-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .provider-logo-link img {
    max-width: 100%;
  }

  .provider-copy {
    align-items: flex-start;
    flex-direction: column;
  }

  h1 {
    font-size: 2rem;
  }

  .metric-strip,
  .p3-fit-grid,
  .totals-grid {
    grid-template-columns: 1fr;
  }

  .persona-head,
  .result-head {
    display: none;
  }

  .persona-row,
  .result-row {
    align-items: stretch;
    grid-template-columns: 1fr 1fr;
  }

  .persona-copy,
  .result-row div {
    grid-column: 1 / -1;
  }

  .persona-row label span {
    display: block;
  }

  .result-row > span {
    background: #f8fafc;
    border-radius: 7px;
    padding: 10px;
  }
}