:root {
  color-scheme: light;
  --bg: #f5f7fa;
  --surface: #ffffff;
  --ink: #18202b;
  --muted: #657181;
  --line: #dce3ec;
  --field: #ffffff;
  --field-border: #cbd5e1;
  --header-bg: rgba(255, 255, 255, 0.92);
  --nav-hover: #e7f4f1;
  --table-head: #edf4f4;
  --table-head-ink: #344052;
  --table-cell: #263241;
  --pill-bg: #e7f4f1;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --gold: #c7811d;
  --danger: #b42318;
  --shadow: 0 16px 40px rgba(24, 32, 43, 0.08);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111827;
  --surface: #18212f;
  --ink: #f4f7fb;
  --muted: #a7b3c4;
  --line: #2f3a4b;
  --field: #101722;
  --field-border: #445066;
  --header-bg: rgba(16, 23, 34, 0.92);
  --nav-hover: #203c3a;
  --table-head: #202c3a;
  --table-head-ink: #d9e2ee;
  --table-cell: #e5edf7;
  --pill-bg: #173d3a;
  --accent: #2dd4bf;
  --accent-dark: #5eead4;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.app-logo {
  height: clamp(32px, 5vw, 42px);
  width: auto;
  object-fit: contain;
}

.app-header h1,
.section-title h2 {
  margin: 0;
  letter-spacing: 0;
}

.app-header h1 {
  font-size: clamp(1.3rem, 2vw, 1.8rem);
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.top-nav a {
  min-height: 36px;
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  background: var(--nav-hover);
  outline: none;
}

.theme-toggle {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font-size: 1.15rem;
  box-shadow: var(--shadow);
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--accent);
  outline: 3px solid rgba(15, 118, 110, 0.16);
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 56px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.footer-content {
  display: grid;
  width: min(1180px, calc(100% - 32px));
  min-height: 132px;
  margin: 0 auto;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 24px;
  align-items: center;
  padding: 28px 0;
}

.footer-content strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.footer-content p {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
}

.footer-contact {
  display: grid;
  gap: 5px;
}

.footer-contact span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}

.footer-contact a {
  color: var(--accent-dark);
  font-weight: 800;
  text-decoration: none;
}

.footer-contact a:hover,
.footer-contact a:focus-visible {
  text-decoration: underline;
  outline: none;
}

.back-to-top {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--field);
  color: var(--ink);
  cursor: pointer;
  font-weight: 900;
}

.back-to-top span {
  display: inline-grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 999px;
  background: var(--pill-bg);
  color: var(--accent-dark);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  border-color: var(--accent);
  outline: 3px solid rgba(15, 118, 110, 0.16);
}

.section {
  margin-bottom: 34px;
}

.section-title {
  grid-column: 1 / -1;
}

.section-title h2 {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

.metric-card,
.tool-panel,
.result-panel,
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.metric-card {
  min-height: 148px;
  padding: 20px;
}

.metric-label,
.result-row span,
label {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.metric-card strong {
  display: block;
  margin-top: 10px;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1;
}

.metric-value-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.metric-value-line strong {
  margin-top: 0;
}

.bi-rate-trend {
  display: inline-grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--field);
  text-decoration: none;
  font-size: 1.35rem;
}

.bi-rate-trend.trend-up {
  color: #ef4444;
}

.bi-rate-trend.trend-down {
  color: #3b82f6;
}

.bi-rate-trend:hover,
.bi-rate-trend:focus-visible {
  border-color: var(--accent);
  outline: 3px solid rgba(15, 118, 110, 0.16);
}

.metric-card small {
  display: block;
  margin-top: 16px;
  color: var(--muted);
}

.calculator-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.8fr);
  gap: 18px;
  align-items: start;
}

.tool-panel,
.result-panel {
  padding: clamp(18px, 3vw, 28px);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 22px 0;
}

label {
  display: grid;
  gap: 7px;
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

legend {
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.down-payment-field {
  grid-column: 1 / -1;
}

.down-payment-options {
  display: grid;
  grid-template-columns: minmax(120px, 0.45fr) auto minmax(180px, 1fr);
  gap: 12px;
  align-items: end;
}

.or-divider {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: lowercase;
}

.label-with-help {
  position: relative;
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 7px;
}

.help-tip {
  display: inline-grid;
  width: 20px;
  height: 20px;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent-dark);
  cursor: help;
  font-size: 0.78rem;
  font-weight: 900;
}

.help-copy {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 0;
  z-index: 3;
  display: none;
  width: min(320px, calc(100vw - 44px));
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow);
  font-size: 0.86rem;
  font-weight: 600;
}

.label-with-help:hover .help-copy,
.label-with-help:focus-within .help-copy {
  display: block;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--field-border);
  border-radius: 6px;
  background: var(--field);
  color: var(--ink);
}

input:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

input:focus,
select:focus {
  border-color: var(--accent);
  outline: 3px solid rgba(15, 118, 110, 0.16);
}

.primary-button {
  min-height: 46px;
  padding: 0 18px;
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 800;
}

.primary-button:hover {
  background: var(--accent-dark);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.form-actions button {
  flex: 1;
  min-width: 140px;
}

.secondary-button {
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--field);
  color: var(--ink);
  cursor: pointer;
  font-weight: 800;
}

.secondary-button:hover,
.secondary-button:focus-visible {
  border-color: var(--accent);
  outline: 3px solid rgba(15, 118, 110, 0.16);
}

.result-panel {
  position: sticky;
  top: 98px;
}

.result-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.result-row strong {
  text-align: right;
  white-space: nowrap;
}

.helper-text {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.detail-section[hidden] {
  display: none;
}

.detail-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.detail-summary {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.detail-summary div {
  display: grid;
  gap: 5px;
  padding: 14px 16px;
  background: var(--surface);
}

.detail-summary span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.detail-summary strong {
  color: var(--ink);
  font-size: 0.98rem;
}

.plafond-cell {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 0;
}

.plafond-main {
  display: grid;
  gap: 5px;
  padding: 14px 16px;
  align-content: center;
}

.plafond-breakdown {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--line);
}

.plafond-item {
  display: grid;
  gap: 3px;
  padding: 10px 16px;
}

.plafond-item + .plafond-item {
  border-top: 1px solid var(--line);
}

.plafond-item span {
  font-size: 0.72rem;
}

.plafond-item strong {
  font-size: 0.9rem;
}

.detail-table-wrap {
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.detail-table-wrap table,
.modal-table-wrap table {
  min-width: 600px;
  table-layout: fixed;
}

.detail-table-wrap col:nth-child(1),
.modal-table-wrap col:nth-child(1) {
  width: 10%;
}

.detail-table-wrap col:nth-child(2),
.modal-table-wrap col:nth-child(2) {
  width: 26%;
}

.detail-table-wrap col:nth-child(3),
.detail-table-wrap col:nth-child(4),
.detail-table-wrap col:nth-child(5),
.modal-table-wrap col:nth-child(3),
.modal-table-wrap col:nth-child(4),
.modal-table-wrap col:nth-child(5) {
  width: 21.33%;
}

.detail-table-wrap th,
.detail-table-wrap td {
  padding: 9px 12px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.detail-table-wrap th:first-child,
.detail-table-wrap td:first-child {
  text-align: center;
}

.detail-panel-footer {
  display: flex;
  justify-content: flex-end;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
}

.full-table-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--field);
  color: var(--accent-dark);
  cursor: pointer;
  font-weight: 800;
  font-size: 0.88rem;
  transition: border-color 0.2s, background 0.2s;
}

.full-table-link:hover,
.full-table-link:focus-visible {
  border-color: var(--accent);
  background: var(--pill-bg);
  outline: 3px solid rgba(15, 118, 110, 0.16);
}

.full-table-link span {
  font-size: 1.1rem;
  line-height: 1;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  animation: fadeIn 0.2s ease;
}

.modal-overlay[hidden] {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  display: flex;
  flex-direction: column;
  width: min(96vw, 960px);
  max-height: 90vh;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  animation: slideUp 0.25s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}

.modal-header h2 {
  margin: 0;
  font-size: 1.25rem;
}

.modal-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--field);
  color: var(--ink);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 800;
  transition: border-color 0.2s, background 0.2s;
}

.modal-action-btn svg {
  flex-shrink: 0;
}

.modal-action-btn:hover,
.modal-action-btn:focus-visible {
  border-color: var(--accent);
  background: var(--pill-bg);
  color: var(--accent-dark);
  outline: 3px solid rgba(15, 118, 110, 0.16);
}

.modal-close {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--field);
  color: var(--ink);
  cursor: pointer;
  font-size: 1.1rem;
  transition: border-color 0.2s;
}

.modal-close:hover,
.modal-close:focus-visible {
  border-color: var(--accent);
  outline: 3px solid rgba(15, 118, 110, 0.16);
}

.modal-summary {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.modal-summary div {
  display: grid;
  gap: 5px;
  padding: 14px 16px;
  background: var(--surface);
}

.modal-summary span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.modal-summary strong {
  color: var(--ink);
  font-size: 0.98rem;
}

.modal-table-wrap {
  flex: 1;
  overflow: auto;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.modal-table-wrap th,
.modal-table-wrap td {
  padding: 9px 12px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.modal-table-wrap th:first-child,
.modal-table-wrap td:first-child {
  text-align: center;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
}

th,
td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

#full-table-rows .fixed-period-row {
  background: var(--pill-bg);
}

#full-table-rows tr:not(:last-child).fixed-period-last-row td {
  border-bottom: 2px solid var(--ink);
}

th {
  background: var(--table-head);
  color: var(--table-head-ink);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.sort-button {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  gap: 6px;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-size: inherit;
  font-weight: 900;
  text-transform: uppercase;
}

.sort-button span {
  display: inline-grid;
  width: 20px;
  height: 20px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.8rem;
}

.sort-button:hover span,
.sort-button:focus-visible span,
.sort-button.is-active span {
  border-color: var(--accent);
  background: var(--pill-bg);
  color: var(--accent-dark);
}

.sort-button:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.16);
  outline-offset: 3px;
}

td {
  color: var(--table-cell);
}

tr:last-child td {
  border-bottom: 0;
}

.rate-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  min-width: 68px;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--pill-bg);
  color: var(--accent-dark);
  font-weight: 800;
}

.source-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 7px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--field);
  color: var(--accent-dark);
  font-weight: 800;
  text-decoration: none;
}

.source-link:hover,
.source-link:focus-visible {
  border-color: var(--accent);
  outline: 3px solid rgba(15, 118, 110, 0.16);
}

.source-globe {
  display: inline-grid;
  width: 24px;
  height: 24px;
  place-items: center;
  font-size: 1rem;
}

.bank-logo {
  display: inline-flex;
  min-width: 0;
  height: 24px;
  align-items: center;
  gap: 4px;
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
}

.bank-logo img {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  object-fit: contain;
}

@media (max-width: 920px) {
  .app-header,
  .calculator-layout {
    display: block;
  }

  .footer-content {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .header-actions {
    justify-content: space-between;
    margin-top: 14px;
  }

  .top-nav {
    margin-top: 0;
  }

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

  .result-panel {
    position: static;
    margin-top: 18px;
  }
}

@media (max-width: 620px) {
  main {
    width: min(100% - 24px, 1180px);
    padding-top: 24px;
  }

  .dashboard-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .app-header {
    padding: 14px 12px;
  }

  .top-nav a {
    padding-inline: 9px;
  }

  .header-actions {
    align-items: flex-start;
  }

  .theme-toggle {
    flex: 0 0 auto;
  }

  .down-payment-options {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .detail-summary {
    grid-template-columns: 1fr;
  }

  .or-divider {
    justify-content: center;
    min-height: 24px;
  }

  .result-row {
    display: grid;
    gap: 5px;
  }

  .result-row strong {
    text-align: left;
  }
}

@media print {
  body * {
    visibility: hidden;
  }
  
  #full-table-modal,
  #full-table-modal * {
    visibility: visible;
  }
  
  #full-table-modal {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    margin: 0;
    padding: 0;
    background: transparent;
    box-shadow: none;
    border: none;
    display: block !important;
  }
  
  .modal-content {
    box-shadow: none;
    border: none;
    width: 100%;
    max-height: none;
    overflow: visible;
  }
  
  .modal-overlay {
    background: transparent;
    backdrop-filter: none;
    position: absolute;
  }
  
  .modal-actions, .modal-close {
    display: none !important;
  }
  
  .modal-table-wrap {
    overflow: visible;
  }
}