:root {
  --color-warm-ivory: #F7F5EF;
  --color-paper-white: #FFFFFF;
  --color-forest-green: #285746;
  --color-forest-green-dark: #1F4537;
  --color-forest-green-light: #EBF2EE;
  --color-deep-ink: #252A27;
  --color-muted-graphite: #686C66;
  --color-warm-stone: #DCD8CE;
  --color-stone-light: #EFECE6;
  --color-muted-brass: #B69A63;
  --color-muted-brass-light: #F9F6F0;
  --color-error-brick: #B94A48;
  --color-error-light: #FDF2F2;

  --font-serif: 'Newsreader', Georgia, serif;
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --shadow-subtle: 0 1px 3px rgba(37, 42, 39, 0.05), 0 1px 2px rgba(37, 42, 39, 0.03);
  --shadow-card: 0 4px 12px rgba(37, 42, 39, 0.04), 0 1px 3px rgba(37, 42, 39, 0.02);
  --shadow-hover: 0 6px 16px rgba(37, 42, 39, 0.08);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --transition-fast: 150ms ease;
  --transition-normal: 240ms ease;
}

[data-theme="dark"] {
  --color-warm-ivory: #161817;
  --color-paper-white: #1F2220;
  --color-forest-green: #3D7A64;
  --color-forest-green-dark: #2F614F;
  --color-forest-green-light: #1A2E25;
  --color-deep-ink: #F0EDE6;
  --color-muted-graphite: #A8ABA5;
  --color-warm-stone: #333835;
  --color-stone-light: #282C2A;
  --color-muted-brass: #C9B07D;
  --color-muted-brass-light: #2A261D;
  --color-error-brick: #E06C6A;
  --color-error-light: #321D1D;
  --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-warm-ivory);
  color: var(--color-deep-ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Tabular numerals for financial clarity */
.tabular-nums, .num, td, .val, .rate-badge {
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

/* Typography */
h1, h2, h3, .brand-heading {
  font-family: var(--font-serif);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-deep-ink);
}

h1 { font-size: 2.25rem; line-height: 1.2; }
h2 { font-size: 1.65rem; line-height: 1.25; }
h3 { font-size: 1.2rem; line-height: 1.3; }

p, span, label, input, select, button {
  font-family: var(--font-sans);
}

.subtext {
  color: var(--color-muted-graphite);
  font-size: 0.88rem;
}

/* App Header / Navigation */
.site-header {
  background: var(--color-paper-white);
  border-bottom: 1px solid var(--color-warm-stone);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-subtle);
}

.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-deep-ink);
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--color-forest-green);
  color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
}

.brand-text-col {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-tag {
  font-size: 0.7rem;
  color: var(--color-muted-graphite);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.main-nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.main-nav-links a {
  text-decoration: none;
  color: var(--color-deep-ink);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.main-nav-links a:hover, .main-nav-links a.active {
  color: var(--color-forest-green);
  background: var(--color-forest-green-light);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.select-control {
  font-size: 0.82rem;
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-sm);
  background: var(--color-paper-white);
  color: var(--color-deep-ink);
  outline: none;
  cursor: pointer;
}

.select-control:focus {
  border-color: var(--color-forest-green);
}

.btn-icon {
  background: none;
  border: 1px solid var(--color-warm-stone);
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-deep-ink);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  background: var(--color-stone-light);
}

/* Layout container */
.app-main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* Hero Section */
.hero-editorial {
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--color-warm-stone);
  margin-bottom: 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
}

.hero-editorial h1 {
  max-width: 650px;
  margin-bottom: 0.65rem;
}

.hero-editorial p {
  max-width: 620px;
  color: var(--color-muted-graphite);
  font-size: 1.05rem;
}

.hero-badges {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

.badge-tag {
  background: var(--color-paper-white);
  border: 1px solid var(--color-warm-stone);
  padding: 0.35rem 0.75rem;
  border-radius: 99px;
  font-size: 0.78rem;
  color: var(--color-muted-graphite);
  font-weight: 500;
}

/* Sections */
.content-section {
  margin-bottom: 3.5rem;
  scroll-margin-top: 5rem;
}

.section-head {
  margin-bottom: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Calculator Grid */
.calc-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.75rem;
  align-items: start;
}

.calc-card {
  background: var(--color-paper-white);
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.field-group {
  margin-bottom: 1.5rem;
}

.field-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.field-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-deep-ink);
}

.field-help {
  font-size: 0.75rem;
  color: var(--color-muted-graphite);
}

.input-with-symbol {
  position: relative;
  display: flex;
  align-items: center;
}

.input-symbol {
  position: absolute;
  left: 0.85rem;
  font-weight: 500;
  color: var(--color-muted-graphite);
  font-size: 0.95rem;
}

.text-input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  padding-left: 2.2rem;
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-sm);
  background: var(--color-paper-white);
  color: var(--color-deep-ink);
  font-size: 1.05rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  outline: none;
  transition: border-color var(--transition-fast);
}

.text-input.no-prefix {
  padding-left: 0.85rem;
}

.text-input:focus {
  border-color: var(--color-forest-green);
  box-shadow: 0 0 0 2px var(--color-forest-green-light);
}

.range-slider {
  width: 100%;
  margin-top: 0.65rem;
  accent-color: var(--color-forest-green);
  cursor: pointer;
}

.field-error {
  color: var(--color-error-brick);
  font-size: 0.78rem;
  margin-top: 0.35rem;
  display: none;
}

.field-error.visible {
  display: block;
}

.tenure-toggle-wrap {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.4rem;
}

.btn-toggle {
  background: var(--color-stone-light);
  border: 1px solid var(--color-warm-stone);
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-deep-ink);
  font-weight: 500;
}

.btn-toggle.active {
  background: var(--color-forest-green);
  color: #fff;
  border-color: var(--color-forest-green);
}

.calc-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-warm-stone);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-forest-green);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-forest-green-dark);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-warm-stone);
  color: var(--color-deep-ink);
}

.btn-outline:hover {
  background: var(--color-stone-light);
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
}

/* Summary Card */
.summary-card {
  background: var(--color-paper-white);
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.emi-highlight-box {
  background: var(--color-forest-green-light);
  border: 1px solid rgba(40, 87, 70, 0.2);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  text-align: center;
}

.emi-highlight-label {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-forest-green);
  font-weight: 600;
}

.emi-highlight-val {
  font-family: var(--font-serif);
  font-size: 2.3rem;
  color: var(--color-forest-green);
  font-weight: 600;
  margin: 0.2rem 0;
  font-variant-numeric: tabular-nums;
}

.emi-highlight-sub {
  font-size: 0.78rem;
  color: var(--color-muted-graphite);
}

.summary-metric-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.65rem;
  border-bottom: 1px dashed var(--color-warm-stone);
}

.metric-row:last-child {
  border-bottom: none;
}

.metric-lbl {
  font-size: 0.85rem;
  color: var(--color-muted-graphite);
}

.metric-val {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-deep-ink);
  font-variant-numeric: tabular-nums;
}

/* Donut Chart Container */
.chart-container-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.chart-wrapper {
  position: relative;
  width: 170px;
  height: 170px;
}

.chart-legend {
  display: flex;
  gap: 1.25rem;
  font-size: 0.8rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.legend-color {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.legend-principal { background: var(--color-forest-green); }
.legend-interest { background: var(--color-muted-brass); }

/* Bank Rates Table & Filters */
.rates-filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.filter-pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--color-paper-white);
  border: 1px solid var(--color-warm-stone);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  cursor: pointer;
  color: var(--color-deep-ink);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--color-forest-green);
  color: #fff;
  border-color: var(--color-forest-green);
}

.rates-status-banner {
  background: var(--color-muted-brass-light);
  border: 1px solid rgba(182, 154, 99, 0.35);
  border-radius: var(--radius-sm);
  padding: 0.65rem 1rem;
  font-size: 0.82rem;
  color: var(--color-deep-ink);
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-md);
  background: var(--color-paper-white);
  box-shadow: var(--shadow-subtle);
}

.ledger-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.ledger-table th {
  background: var(--color-stone-light);
  color: var(--color-muted-graphite);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-warm-stone);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ledger-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--color-stone-light);
  color: var(--color-deep-ink);
  vertical-align: middle;
}

.ledger-table tr:hover {
  background: var(--color-warm-ivory);
}

.rate-badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background: var(--color-forest-green-light);
  color: var(--color-forest-green);
  font-weight: 700;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
}

.source-link {
  color: var(--color-forest-green);
  text-decoration: underline;
  font-size: 0.78rem;
}

/* Compare Matrix */
.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.compare-card {
  background: var(--color-paper-white);
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.compare-card.recommended {
  border-color: var(--color-forest-green);
  box-shadow: 0 0 0 1px var(--color-forest-green);
}

/* Prepayment & Affordability Grid */
.two-col-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
}

/* DTI Status indicator */
.dti-gauge {
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
}

.status-safe {
  background: var(--color-forest-green-light);
  border: 1px solid var(--color-forest-green);
  color: var(--color-forest-green-dark);
}

.status-moderate {
  background: var(--color-muted-brass-light);
  border: 1px solid var(--color-muted-brass);
  color: #795F2B;
}

.status-risky {
  background: var(--color-error-light);
  border: 1px solid var(--color-error-brick);
  color: var(--color-error-brick);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(37, 42, 39, 0.6);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background: var(--color-paper-white);
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-md);
  max-width: 480px;
  width: 100%;
  padding: 2rem;
  box-shadow: 0 12px 32px rgba(37, 42, 39, 0.15);
  position: relative;
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--color-muted-graphite);
}

/* OTP Digits input */
.otp-digit-inputs {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin: 1.5rem 0;
}

.otp-digit {
  width: 44px;
  height: 52px;
  text-align: center;
  font-size: 1.4rem;
  font-weight: 700;
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-sm);
  background: var(--color-paper-white);
  color: var(--color-deep-ink);
  outline: none;
}

.otp-digit:focus {
  border-color: var(--color-forest-green);
  box-shadow: 0 0 0 2px var(--color-forest-green-light);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  max-width: 680px;
  background: var(--color-paper-white);
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(37, 42, 39, 0.12);
  padding: 1.25rem 1.5rem;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.cookie-actions {
  display: flex;
  gap: 0.65rem;
  align-self: flex-end;
}

/* Toast notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--color-deep-ink);
  color: var(--color-warm-ivory);
  padding: 0.75rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  box-shadow: var(--shadow-hover);
  animation: slideInToast 200ms ease;
}

@keyframes slideInToast {
  from { transform: translateY(10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Site Footer */
.site-footer {
  background: var(--color-paper-white);
  border-top: 1px solid var(--color-warm-stone);
  padding: 3rem 1.5rem 2rem;
  margin-top: 4rem;
}

.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-warm-stone);
}

.footer-links-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted-graphite);
  margin-bottom: 0.75rem;
}

.footer-links-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-links-col a {
  text-decoration: none;
  color: var(--color-deep-ink);
  font-size: 0.85rem;
}

.footer-links-col a:hover {
  color: var(--color-forest-green);
}

.footer-bottom {
  max-width: 1240px;
  margin: 1.5rem auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--color-muted-graphite);
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .calc-grid {
    grid-template-columns: 1fr;
  }
  .two-col-grid {
    grid-template-columns: 1fr;
  }
  .compare-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .main-nav-links {
    display: none; /* Mobile menu can toggle */
  }
}

@media print {
  .site-header, .rates-filter-bar, .calc-actions, .cookie-banner, .site-footer, .header-controls {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
  }
  .calc-card, .summary-card {
    border: 1px solid #ccc;
    box-shadow: none;
  }
}

/* ── Basic Calculator ──────────────────────────────────────── */
.basic-calc-card {
  max-width: 360px;
  margin: 0 auto;
  padding: 1.5rem;
}

.basic-calc-display {
  font-family: var(--font-sans);
  font-size: 2.5rem;
  font-weight: 600;
  text-align: right;
  padding: 0.75rem 1rem;
  color: var(--color-deep-ink);
  background: var(--color-stone-light);
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-md);
  min-height: 3.5rem;
  word-break: break-all;
  line-height: 1.2;
  overflow-x: auto;
}

.basic-calc-expression {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-align: right;
  padding: 0.25rem 1rem 0;
  color: var(--color-muted-graphite);
  min-height: 1.25rem;
  margin-bottom: 1rem;
}

.basic-calc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

.bcalc-btn {
  font-family: var(--font-sans);
  font-size: 1.3rem;
  font-weight: 500;
  padding: 0.85rem 0;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
  background: var(--color-paper-white);
  color: var(--color-deep-ink);
  border: 1px solid var(--color-warm-stone);
}

.bcalc-btn:hover {
  background: var(--color-stone-light);
  transform: translateY(-1px);
}

.bcalc-btn:active {
  transform: translateY(0);
}

.bcalc-btn.operator {
  background: var(--color-forest-green);
  color: var(--color-paper-white);
  border-color: var(--color-forest-green);
  font-weight: 600;
}

.bcalc-btn.operator:hover {
  background: var(--color-forest-green-dark);
}

.bcalc-btn.action {
  background: var(--color-muted-brass-light);
  color: var(--color-deep-ink);
  border-color: var(--color-warm-stone);
  font-weight: 600;
}

.bcalc-btn.action:hover {
  background: var(--color-warm-stone);
}

.bcalc-btn.equals {
  background: var(--color-muted-brass);
  color: var(--color-paper-white);
  border-color: var(--color-muted-brass);
  font-weight: 700;
  font-size: 1.5rem;
}

.bcalc-btn.equals:hover {
  background: #A48A55;
}

/* Dark mode adjustments */
[data-theme="dark"] .basic-calc-display {
  background: var(--color-deep-ink);
  border-color: var(--color-muted-graphite);
  color: var(--color-warm-ivory);
}

[data-theme="dark"] .basic-calc-expression {
  color: var(--color-warm-stone);
}

[data-theme="dark"] .bcalc-btn {
  background: #2a2f2c;
  color: var(--color-warm-ivory);
  border-color: var(--color-muted-graphite);
}

[data-theme="dark"] .bcalc-btn:hover {
  background: #353a37;
}

[data-theme="dark"] .bcalc-btn.action {
  background: #3a3528;
  color: var(--color-warm-ivory);
}

[data-theme="dark"] .bcalc-btn.action:hover {
  background: #4a4538;
}

/* Responsive */
@media (max-width: 480px) {
  .basic-calc-card {
    padding: 1rem;
  }
  .basic-calc-display {
    font-size: 2rem;
  }
  .bcalc-btn {
    font-size: 1.1rem;
    padding: 0.7rem 0;
  }
}

/* ── Extra Financial Tool Cards ────────────────────────────── */
.tool-card {
  max-width: 600px;
  margin: 0 auto;
}

.tool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.tool-grid .btn {
  grid-column: 1 / -1;
  margin-top: 0.5rem;
}

.tool-results {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--color-stone-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-warm-stone);
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  font-size: 0.95rem;
}

.result-row span {
  color: var(--color-muted-graphite);
}

.result-row strong {
  font-size: 1.05rem;
}

.result-row.result-highlight {
  padding: 0.75rem 0;
  margin-top: 0.5rem;
  border-top: 2px solid var(--color-forest-green);
}

.result-row.result-highlight strong {
  font-size: 1.25rem;
  color: var(--color-deep-ink);
}

/* Nav dropdown for More Tools */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  cursor: pointer;
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-paper-white);
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-card);
  min-width: 200px;
  padding: 0.5rem 0;
  z-index: 100;
  list-style: none;
}

.nav-dropdown:hover .nav-dropdown-menu {
  display: block;
}

.nav-dropdown-menu li {
  padding: 0;
}

.nav-dropdown-menu li a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--color-deep-ink);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background var(--transition-fast);
}

.nav-dropdown-menu li a:hover {
  background: var(--color-forest-green-light);
  color: var(--color-forest-green);
}

/* Dark mode for tool results */
[data-theme="dark"] .tool-results {
  background: var(--color-deep-ink);
  border-color: var(--color-muted-graphite);
}

[data-theme="dark"] .result-row span {
  color: var(--color-warm-stone);
}

[data-theme="dark"] .result-row.result-highlight strong {
  color: var(--color-warm-ivory);
}

[data-theme="dark"] .nav-dropdown-menu {
  background: var(--color-deep-ink);
  border-color: var(--color-muted-graphite);
}

[data-theme="dark"] .nav-dropdown-menu li a {
  color: var(--color-warm-ivory);
}

[data-theme="dark"] .nav-dropdown-menu li a:hover {
  background: var(--color-forest-green);
  color: var(--color-paper-white);
}

@media (max-width: 600px) {
  .tool-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Authentication Gate (Platform Lock) ───────────────────── */
body.auth-locked .app-main,
body.auth-locked .site-footer,
body.auth-locked .main-nav-links,
body.auth-locked #cookie-consent-banner {
  display: none !important;
}

body:not(.auth-locked) #auth-gate-screen {
  display: none !important;
}

#auth-gate-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 100px);
  padding: 3rem 1.5rem;
}

.auth-gate-card {
  background: var(--color-paper-white);
  border: 1px solid var(--color-warm-stone);
  border-radius: var(--radius-lg);
  max-width: 460px;
  width: 100%;
  padding: 2.5rem 2.25rem;
  box-shadow: 0 16px 40px rgba(37, 42, 39, 0.08);
  animation: authFadeUp 0.35s ease-out;
  position: relative;
}

@keyframes authFadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.auth-brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-forest-green-light);
  color: var(--color-forest-green);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.auth-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--color-deep-ink);
  margin-bottom: 0.4rem;
  line-height: 1.25;
}

.auth-desc {
  font-size: 0.92rem;
  color: var(--color-muted-graphite);
  margin-bottom: 1.75rem;
  line-height: 1.5;
}

.auth-tabs {
  display: flex;
  border-bottom: 2px solid var(--color-stone-light);
  margin-bottom: 1.75rem;
  gap: 0.5rem;
}

.auth-tab-btn {
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-muted-graphite);
  padding: 0.6rem 1rem;
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

.auth-tab-btn.active {
  color: var(--color-forest-green);
}

.auth-tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-forest-green);
}

.auth-panel {
  display: none;
}

.auth-panel.active {
  display: block;
}

.auth-footer-help {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-stone-light);
  font-size: 0.85rem;
  color: var(--color-muted-graphite);
  text-align: center;
}

/* User Session Nav Profile Badge */
.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.3rem 0.75rem;
  background: var(--color-stone-light);
  border: 1px solid var(--color-warm-stone);
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-deep-ink);
}

.user-profile-badge .user-avatar-circle {
  width: 22px;
  height: 22px;
  background: var(--color-forest-green);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.btn-signout-nav {
  background: none;
  border: none;
  color: var(--color-error-brick);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  margin-left: 0.35rem;
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.btn-signout-nav:hover {
  background: var(--color-error-light);
}

/* Dark mode overrides for Auth Gate */
[data-theme="dark"] .auth-gate-card {
  background: #1e2220;
  border-color: var(--color-muted-graphite);
}

[data-theme="dark"] .auth-title {
  color: var(--color-warm-ivory);
}

[data-theme="dark"] .auth-desc {
  color: var(--color-warm-stone);
}

[data-theme="dark"] .auth-tabs {
  border-color: #2e3330;
}

[data-theme="dark"] .auth-tab-btn {
  color: var(--color-warm-stone);
}

[data-theme="dark"] .auth-tab-btn.active {
  color: #5bb593;
}

[data-theme="dark"] .auth-tab-btn.active::after {
  background: #5bb593;
}

[data-theme="dark"] .auth-brand-badge {
  background: rgba(40, 87, 70, 0.4);
  color: #8edec0;
}

[data-theme="dark"] .user-profile-badge {
  background: #252a27;
  border-color: var(--color-muted-graphite);
  color: var(--color-warm-ivory);
}

[data-theme="dark"] .auth-footer-help {
  border-color: #2e3330;
  color: var(--color-warm-stone);
}