:root {
  --paper: #f6f4ef;
  --paper-strong: #eeebe4;
  --surface: rgba(255, 255, 252, 0.88);
  --surface-strong: #fffefb;
  --surface-muted: #f4f1ea;
  --ink: #1f1f1f;
  --ink-soft: #4a4a4a;
  --muted: #6f6a63;
  --line: rgba(18, 18, 18, 0.1);
  --line-strong: rgba(18, 18, 18, 0.18);
  --shadow-soft: 0 10px 30px rgba(42, 39, 32, 0.06);
  --shadow-card: 0 18px 48px rgba(42, 39, 32, 0.08);
  --shadow-hover: 0 22px 60px rgba(42, 39, 32, 0.11);
  --str-color: #1f6fe5;
  --str-strong: #1553b5;
  --str-light: rgba(31, 111, 229, 0.12);
  --ltr-color: #7f5aa6;
  --ltr-strong: #5d427a;
  --ltr-light: rgba(127, 90, 166, 0.14);
  --positive: #12705d;
  --negative: #b1482e;
  --radius-card: 18px;
  --radius-soft: 14px;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.7), transparent 34%),
    linear-gradient(180deg, #fbfaf7 0%, var(--paper) 100%);
  color: var(--ink);
  font-family: "Manrope", sans-serif;
  font-size: 0.95rem;
  padding-bottom: 0;
}

.navbar.bg-dark {
  background: rgba(248, 247, 243, 0.86) !important;
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 6px 20px rgba(35, 31, 24, 0.05);
}

.navbar-brand {
  color: var(--ink) !important;
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.navbar-text {
  color: var(--muted) !important;
}

.nav-tabs-header {
  border-bottom: none;
  gap: 0.45rem;
}

.nav-tabs-header .nav-link {
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.nav-tabs-header .nav-link:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(46, 52, 64, 0.08);
}

.nav-tabs-header .nav-link.active {
  color: #fff;
  background: var(--ink);
  border-color: var(--ink);
}

.section-title {
  color: var(--ink);
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.7rem;
  margin-bottom: 1.35rem;
}

.text-muted,
.form-text,
.metric-label,
.impact-lens-subtext {
  color: var(--muted) !important;
}

.card {
  background: var(--surface);
  border: 1px solid rgba(31, 31, 31, 0.06);
  border-radius: var(--radius-card);
  box-shadow: 0 1px 0 rgba(31, 31, 31, 0.05);
  overflow: hidden;
}

.card:hover {
  box-shadow: 0 1px 0 rgba(31, 31, 31, 0.05);
}

.card-header {
  background: rgba(255, 255, 252, 0.92) !important;
  border-bottom: 1px solid var(--line) !important;
  color: var(--ink) !important;
  padding: 0.95rem 1.2rem;
}

.card-header.bg-primary {
  background: var(--str-color) !important;
  border-bottom-color: rgba(0, 0, 0, 0.06) !important;
  color: #fff !important;
}

.card-header.bg-primary .mb-0 {
  color: #fff !important;
}

.card-header.bg-warning {
  background: rgba(127, 90, 166, 0.12) !important;
  border-bottom-color: rgba(127, 90, 166, 0.16) !important;
  color: var(--ltr-strong) !important;
}

.card-header.bg-warning .mb-0 {
  color: var(--ltr-strong) !important;
}

.card-title {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.9rem;
}

.metric-card {
  background: rgba(255, 255, 252, 0.94);
}

.metric-value {
  color: var(--ink);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.metric-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.border-primary,
.card.border-primary {
  border-color: rgba(31, 111, 229, 0.18) !important;
}

.border-warning,
.card.border-warning {
  border-color: rgba(127, 90, 166, 0.2) !important;
}

.bg-primary,
.btn-primary,
.badge.bg-primary {
  background: var(--str-color) !important;
  border-color: var(--str-color) !important;
}

.bg-warning,
.badge.bg-warning {
  background: rgba(127, 90, 166, 0.14) !important;
  border-color: rgba(127, 90, 166, 0.18) !important;
  color: var(--ltr-strong) !important;
}

.text-primary {
  color: var(--str-color) !important;
}

.text-warning {
  color: var(--ltr-color) !important;
}

.bg-secondary,
.badge.bg-secondary {
  background: rgba(31, 36, 48, 0.12) !important;
  color: var(--ink) !important;
  border: 1px solid rgba(31, 36, 48, 0.08);
}

.bg-success,
.badge.bg-success {
  background: rgba(26, 127, 90, 0.12) !important;
  color: var(--positive) !important;
  border: 1px solid rgba(26, 127, 90, 0.12);
}

.bg-danger,
.badge.bg-danger {
  background: rgba(179, 75, 64, 0.12) !important;
  color: var(--negative) !important;
  border: 1px solid rgba(179, 75, 64, 0.12);
}

.btn {
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: none;
}

.btn-primary {
  color: #fff !important;
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--str-strong) !important;
  border-color: var(--str-strong) !important;
}

.btn-outline-light,
.btn-outline-secondary,
.btn-outline-primary,
.btn-outline-danger {
  background: rgba(255, 255, 255, 0.74);
  border-width: 1px;
}

.btn-outline-light {
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn-outline-secondary,
.btn-outline-primary {
  border-color: var(--line-strong);
  color: var(--ink-soft);
}

.btn-outline-danger {
  border-color: rgba(179, 75, 64, 0.24);
  color: var(--negative);
}

.btn-outline-light:hover,
.btn-outline-secondary:hover,
.btn-outline-primary:hover {
  background: #fff;
  border-color: var(--ink-soft);
  color: var(--ink);
}

.btn-outline-danger:hover {
  background: rgba(179, 75, 64, 0.08);
  border-color: var(--negative);
  color: var(--negative);
}

.btn-group > .btn {
  border-radius: 999px !important;
  margin-right: 0.3rem;
}

.btn-group > .btn:last-child {
  margin-right: 0;
}

.btn-group > .btn.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.preset-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.22rem;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(31, 31, 31, 0.08);
  border-radius: 999px;
}

.preset-toggle > .btn {
  margin-right: 0 !important;
  min-width: 6.2rem;
  background: transparent;
  border-color: transparent;
  color: var(--muted);
}

.preset-toggle > .btn:hover {
  background: rgba(31, 31, 31, 0.04);
  border-color: transparent;
}

.preset-toggle > .btn.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  box-shadow: 0 6px 16px rgba(31, 31, 31, 0.12);
}

.form-control,
.input-group-text,
.form-select {
  background: rgba(255, 255, 255, 0.86);
  border-color: rgba(46, 52, 64, 0.1);
  color: var(--ink);
  border-radius: 12px;
}

.input-group > .form-control,
.input-group > .input-group-text,
.input-group > .btn {
  border-radius: 12px;
}

.input-group-sm > .form-control,
.input-group-sm > .input-group-text {
  font-size: 0.84rem;
}

.cost-input {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.cost-input:focus,
.form-control:focus,
.form-select:focus {
  border-color: rgba(31, 95, 91, 0.38);
  box-shadow: 0 0 0 0.18rem rgba(31, 95, 91, 0.12);
}

.calculator-layout {
  align-items: flex-start;
}

.calculator-main-shell,
.calculator-sidebar-shell {
  min-width: 0;
}

.calculator-sidebar-shell {
  background: rgba(248, 247, 243, 0.76);
  border: 1px solid rgba(31, 31, 31, 0.06);
  border-radius: 24px;
  box-shadow: none;
  padding: 1.25rem;
}

.calculator-sidebar-shell .section-title {
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.calculator-sidebar-shell .card {
  background: rgba(255, 255, 252, 0.78);
  box-shadow: none;
}

.calculator-sidebar-shell #cost-model > .row.align-items-end {
  background: rgba(255, 255, 255, 0.52) !important;
  border: 1px solid rgba(46, 52, 64, 0.08);
}

@media (min-width: 1200px) {
  .calculator-sidebar-shell {
    position: sticky;
    top: 76px;
  }

  .calculator-sidebar-shell #cost-model {
    margin-bottom: 0 !important;
  }
}

.recommendation-card {
  background: rgba(255, 255, 252, 0.92);
  border: 1px solid rgba(31, 31, 31, 0.08);
  border-top: 4px solid var(--ink);
}

.comparison-legend {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  flex-wrap: wrap;
}

.comparison-legend-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.3rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
}

.comparison-legend-chip-str {
  color: var(--str-color);
  background: var(--str-light);
  border-color: rgba(31, 111, 229, 0.18);
}

.comparison-legend-chip-ltr {
  color: var(--ltr-color);
  background: var(--ltr-light);
  border-color: rgba(127, 90, 166, 0.18);
}

.term-str {
  color: var(--str-color);
}

.term-ltr {
  color: var(--ltr-color);
}

.recommendation-kicker {
  letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
}

.recommendation-headline {
  font-size: clamp(1.85rem, 2.8vw, 2.35rem) !important;
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.recommendation-metrics {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 1.1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(31, 36, 48, 0.08);
}

.recommendation-metric {
  min-width: 110px;
}

.recommendation-metric-label {
  font-size: 0.69rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

.recommendation-metric-value {
  font-size: 1.08rem;
  font-weight: 800;
}

.recommendation-actions {
  margin-top: 1rem;
}

.recommendation-summary {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(31, 36, 48, 0.08);
}

.recommendation-summary > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(31, 36, 48, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.52);
  cursor: pointer;
  list-style: none;
}

.recommendation-summary > summary::-webkit-details-marker {
  display: none;
}

.recommendation-summary > summary::after {
  content: '+';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 999px;
  border: 1px solid rgba(31, 36, 48, 0.1);
  color: var(--muted);
  font-size: 1.1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.recommendation-summary[open] > summary::after {
  content: '-';
}

.recommendation-summary-title {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--ink);
}

.recommendation-summary-hint {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.recommendation-summary-body {
  padding-top: 0.85rem;
}

.recommendation-summary-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.recommendation-summary-feedback {
  min-height: 1rem;
}

.recommendation-summary-text {
  width: 100%;
  min-height: 22rem;
  resize: vertical;
  border: 1px solid rgba(31, 36, 48, 0.08);
  border-radius: 18px;
  padding: 1rem 1.05rem;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  font-size: 0.92rem;
  line-height: 1.55;
  white-space: pre-wrap;
}

.recommendation-summary-text:focus {
  outline: none;
  border-color: rgba(15, 107, 99, 0.22);
  box-shadow: 0 0 0 0.18rem rgba(15, 107, 99, 0.08);
}

.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--ink);
  --bs-table-hover-bg: rgba(255, 255, 255, 0.58);
  margin-bottom: 0;
}

.table > :not(caption) > * > * {
  border-bottom-color: rgba(46, 52, 64, 0.08);
  padding: 0.85rem 0.8rem;
}

.table thead th {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom-width: 1px;
  white-space: nowrap;
}

.table-hover > tbody > tr:hover > * {
  color: var(--ink);
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
  background: rgba(255, 255, 255, 0.34);
}

.table-info > * {
  --bs-table-bg: rgba(31, 111, 229, 0.08);
}

.table-warning > * {
  --bs-table-bg: rgba(127, 90, 166, 0.08);
}

.delta-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 5.4rem;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: rgba(31, 31, 31, 0.04);
}

.delta-chip.positive {
  color: var(--positive);
  background: rgba(18, 112, 93, 0.1);
}

.delta-chip.negative {
  color: var(--negative);
  background: rgba(177, 72, 46, 0.1);
}

.impact-lens-table .impact-main-col,
.impact-summary-table .impact-main-col {
  font-weight: 700;
}

.impact-lens-table,
.impact-summary-table {
  min-width: 1080px;
}

.calculation-breakdown-table {
  min-width: 1220px;
}

.calculation-breakdown-table .breakdown-str-col {
  background: rgba(15, 107, 99, 0.035);
}

.calculation-breakdown-table .breakdown-ltr-col {
  background: rgba(102, 117, 139, 0.05);
}

.calculation-breakdown-table .breakdown-gap-col {
  background: rgba(31, 36, 48, 0.025);
}

.calculation-breakdown-table thead .breakdown-str-col {
  color: var(--str-color);
}

.calculation-breakdown-table thead .breakdown-ltr-col {
  color: var(--ltr-color);
}

.calculation-breakdown-table thead .breakdown-gap-col {
  color: var(--ink);
}

.calculation-breakdown-table .breakdown-group-start {
  border-left: 1px solid rgba(31, 36, 48, 0.12);
}

.calculation-breakdown-table tfoot td {
  border-top-width: 2px;
}

.cashflow-legend {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.cashflow-legend-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.cashflow-legend-label {
  min-width: 2.4rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cashflow-legend-label-str {
  color: var(--str-color);
}

.cashflow-legend-label-ltr {
  color: var(--ltr-color);
}

.cashflow-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 600;
}

.cashflow-swatch {
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 4px;
  flex-shrink: 0;
}

.cashflow-line {
  width: 1.15rem;
  height: 0;
  border-top: 3px solid currentColor;
  flex-shrink: 0;
}

.cashflow-swatch-str-revenue {
  background: var(--str-color);
}

.cashflow-swatch-str-cost {
  background: rgba(96, 140, 214, 0.28);
}

.cashflow-swatch-str-tax {
  background: rgba(46, 98, 189, 0.62);
}

.cashflow-line-str {
  color: var(--str-color);
}

.cashflow-swatch-ltr-revenue {
  background: var(--ltr-color);
}

.cashflow-swatch-ltr-cost {
  background: rgba(150, 120, 190, 0.28);
}

.cashflow-swatch-ltr-tax {
  background: rgba(99, 67, 141, 0.62);
}

.cashflow-line-ltr {
  color: var(--ltr-color);
  border-top-style: dashed;
}

.impact-lens-table th,
.impact-lens-table td,
.impact-summary-table th,
.impact-summary-table td {
  vertical-align: middle;
}

.impact-value-cell,
.impact-delta-cell {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.impact-shock-cell {
  white-space: nowrap;
}

.impact-lens-input {
  width: 5.5rem;
  min-width: 5.5rem;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.impact-lens-input-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  min-width: 170px;
  margin-left: auto;
}

.impact-lens-unit {
  color: var(--muted);
  font-size: 0.75rem;
  pointer-events: none;
  white-space: nowrap;
  text-align: left;
  min-width: 6rem;
}

.impact-lens-input::-webkit-outer-spin-button,
.impact-lens-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.impact-lens-input[type=number] {
  -moz-appearance: textfield;
  appearance: textfield;
}

.impact-lens-label {
  color: var(--ink);
  font-weight: 700;
}

.impact-lens-subtext {
  color: var(--muted);
  font-size: 0.75rem;
}

td.impact-pos {
  color: var(--positive) !important;
}

td.impact-neg {
  color: var(--negative) !important;
}

.impact-lens-table tfoot td {
  border-top-width: 2px;
}

.calc-tip {
  position: fixed;
  z-index: 9999;
  pointer-events: none;
  background: rgba(31, 36, 48, 0.94);
  color: #fff;
  font-size: 0.78rem;
  line-height: 1.45;
  padding: 0.55rem 0.8rem;
  border-radius: 12px;
  max-width: 420px;
  white-space: normal;
  box-shadow: 0 14px 36px rgba(16, 18, 24, 0.24);
  opacity: 0;
  transition: opacity 0.1s;
}

.calc-tip.visible {
  opacity: 1;
}

[data-calc] {
  cursor: default;
}

.analysis-feedback {
  min-height: 1.25rem;
}

.analysis-feedback.is-success {
  color: var(--positive);
}

.analysis-feedback.is-error {
  color: var(--negative);
}

.analysis-list .list-group-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--line);
}

.analysis-list-meta {
  min-width: 0;
}

.analysis-list-meta strong,
.analysis-list-meta code {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.analysis-list-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.modal-content {
  background: rgba(251, 250, 246, 0.96);
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.86);
  box-shadow: 0 30px 70px rgba(24, 21, 16, 0.18);
}

footer {
  color: var(--muted) !important;
  border-top-color: var(--line) !important;
}

.login-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(31, 111, 229, 0.08), transparent 30%),
    radial-gradient(circle at bottom right, rgba(127, 90, 166, 0.08), transparent 32%),
    linear-gradient(180deg, #fcfbf8 0%, var(--paper) 100%);
}

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.login-panel {
  width: min(100%, 440px);
  padding: 2rem;
  background: rgba(255, 255, 252, 0.92);
  border: 1px solid rgba(31, 31, 31, 0.08);
  border-radius: 24px;
  box-shadow: 0 24px 60px rgba(31, 31, 31, 0.08);
}

.login-kicker {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.65rem;
}

.login-title {
  font-size: clamp(1.9rem, 4vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 0.5rem;
}

.login-copy {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

@media (max-width: 991px) {
  .navbar .container-fluid {
    gap: 0.8rem;
  }

  .nav-tabs-header {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .recommendation-metrics {
    gap: 1rem;
  }

  .recommendation-summary-actions {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media print {
  .navbar, #apartment-selector, .cost-input, .btn, .form-check,
  .accordion-button, footer, select, .nav-tabs-header {
    display: none !important;
  }

  .tab-pane {
    display: block !important;
    opacity: 1 !important;
  }

  .accordion-collapse {
    display: block !important;
  }

  .card,
  .calculator-sidebar-shell {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #d9d2c8;
    background: white !important;
  }

  body {
    background: white;
  }
}