:root {
  --midnight: #0E1B2C;
  --paper: #F8FAFC;
  --snow: #F4F6F8;
  --pine: #0F7A6C;
  --pine-50: #E6F1EF;
  --pine-100: #BEDBD5;
  --pine-600: #0B6459;
  --pine-700: #084F47;
  --terracotta: #C85A33;
  --terracotta-50: #F9E9E2;
  --terracotta-600: #A64A28;
  --olive: #6B7A3A;
  --ochre: #C99A3E;
  --slate-50: #F8FAFC;
  --slate-100: #EEF2F6;
  --slate-200: #DDE4EC;
  --slate-300: #BDC8D4;
  --slate-400: #8C9AAB;
  --slate-500: #5B6573;
  --slate-600: #3E4856;
  --slate-700: #2A3342;
  --slate-800: #1A2232;
  --slate-900: #0E1625;
  --font-serif: 'Source Serif 4', ui-serif, Georgia, serif;
  --font-sans: 'IBM Plex Sans', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  /* Fit tier colors */
  --fit-comfortable-bg: #DCFCE7;
  --fit-comfortable-text: #14532D;
  --fit-comfortable-border: #86EFAC;
  --fit-liveable-bg: #DBEAFE;
  --fit-liveable-text: #1E3A8A;
  --fit-liveable-border: #93C5FD;
  --fit-tight-bg: #FEF3C7;
  --fit-tight-text: #78350F;
  --fit-tight-border: #FCD34D;
  --fit-none-bg: #F1F5F9;
  --fit-none-text: #475569;
  --fit-none-border: #CBD5E1;
}

/* ---- SCOPED RESET ---- */
.col-page-wrap, .col-page-wrap *, .col-page-wrap *::before, .col-page-wrap *::after {
  box-sizing: border-box;
}
.col-page-wrap h1, .col-page-wrap h2, .col-page-wrap h3, .col-page-wrap h4,
.col-page-wrap p, .col-page-wrap ul, .col-page-wrap ol {
  margin: 0;
  padding: 0;
}
.col-page-wrap {
  font-family: var(--font-sans);
  color: var(--midnight);
  line-height: 1.5;
}
.col-breadcrumb-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px 24px 0;
}

.col-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}

/* ---- HERO ---- */
.col-hero {
  text-align: center;
  margin-bottom: 48px;
}
.col-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--pine);
  margin-bottom: 16px;
}
.col-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 18px;
  color: var(--midnight);
}
.col-hero p {
  font-size: 18px;
  color: var(--slate-600);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ---- INPUTS ---- */
.col-inputs {
  background: linear-gradient(180deg, #FAFCFD 0%, #F2F6F9 100%);
  border: 1px solid var(--slate-200);
  border-radius: 20px;
  padding: 32px 28px 24px;
  margin-bottom: 32px;
  box-shadow: 0 1px 0 rgba(255,255,255,0.6) inset, 0 16px 40px -24px rgba(14,27,44,0.12);
}
.col-inputs-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.col-budget-row {
  display: flex;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
}
.col-budget-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  min-width: 180px;
}
.col-mode-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.col-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--slate-500);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.col-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.col-currency {
  position: absolute;
  left: 16px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--slate-400);
  pointer-events: none;
  user-select: none;
}
.col-number-input {
  width: 100%;
  padding: 14px 16px 14px 36px;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--midnight);
  background: var(--paper);
  border: 2px solid var(--slate-200);
  border-radius: 12px;
  outline: none;
  transition: border-color 200ms ease, box-shadow 200ms ease;
  -moz-appearance: textfield;
  appearance: textfield;
}
.col-number-input::-webkit-outer-spin-button,
.col-number-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.col-number-input:focus {
  border-color: var(--pine);
  box-shadow: 0 0 0 3px var(--pine-50);
}

/* ---- MODE TOGGLE ---- */
.col-mode-toggle {
  display: flex;
  background: var(--paper);
  border: 1.5px solid var(--slate-200);
  border-radius: 10px;
  overflow: hidden;
  padding: 3px;
  gap: 2px;
}
.col-mode-btn {
  padding: 10px 20px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--slate-500);
  background: transparent;
  border: none;
  border-radius: 7px;
  cursor: pointer;
  transition: all 180ms ease;
  white-space: nowrap;
}
.col-mode-btn:hover { color: var(--midnight); background: var(--slate-100); }
.col-mode-btn--active {
  background: var(--midnight);
  color: var(--paper);
}
.col-mode-btn--active:hover {
  background: var(--slate-700);
  color: var(--paper);
}

/* ---- SLIDER ---- */
.col-slider-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.col-slider-min, .col-slider-max {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate-400);
  white-space: nowrap;
  flex-shrink: 0;
}
.col-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--slate-200);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
  transition: background 200ms ease;
}
.col-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--midnight);
  border: 2.5px solid var(--paper);
  box-shadow: 0 2px 8px rgba(14,27,44,0.3);
  cursor: grab;
  transition: background 180ms ease, transform 180ms ease;
}
.col-slider::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.15);
  background: var(--pine);
}
.col-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--midnight);
  border: 2.5px solid var(--paper);
  box-shadow: 0 2px 8px rgba(14,27,44,0.3);
  cursor: grab;
}
.col-source-note {
  font-size: 12px;
  color: var(--slate-400);
  font-family: var(--font-mono);
  text-align: center;
  line-height: 1.5;
}

/* ---- RESULTS ---- */
.col-results {
  margin-bottom: 40px;
}
.col-summary-line {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--slate-500);
  margin-bottom: 16px;
  padding: 0 2px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.col-summary-count {
  font-size: 15px;
  font-weight: 700;
  color: var(--pine);
}
.col-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ---- CITY CARD ---- */
.col-card {
  background: var(--paper);
  border: 1.5px solid var(--slate-200);
  border-radius: 16px;
  padding: 20px 18px;
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 220ms ease, border-color 220ms ease;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.col-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -16px rgba(14,27,44,0.16);
  border-color: var(--slate-300);
}
.col-card--comfortable { border-color: var(--fit-comfortable-border); }
.col-card--liveable    { border-color: var(--fit-liveable-border); }
.col-card--tight       { border-color: var(--fit-tight-border); }
.col-card--none        { border-color: var(--slate-200); opacity: 0.72; }

.col-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}
.col-card-name {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--midnight);
  line-height: 1.2;
}
.col-card-name a {
  color: inherit;
  text-decoration: none;
  transition: color 180ms ease;
}
.col-card-name a:hover { color: var(--pine); }

/* ---- FIT BADGE ---- */
.col-fit-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  white-space: nowrap;
  flex-shrink: 0;
  font-family: var(--font-mono);
}
.col-fit-badge--comfortable {
  background: var(--fit-comfortable-bg);
  color: var(--fit-comfortable-text);
}
.col-fit-badge--liveable {
  background: var(--fit-liveable-bg);
  color: var(--fit-liveable-text);
}
.col-fit-badge--tight {
  background: var(--fit-tight-bg);
  color: var(--fit-tight-text);
}
.col-fit-badge--none {
  background: var(--fit-none-bg);
  color: var(--fit-none-text);
}

/* ---- CARD STATS ---- */
.col-card-cost {
  display: flex;
  align-items: baseline;
  gap: 6px;
  border-top: 1px solid var(--slate-100);
  padding-top: 10px;
}
.col-cost-amount {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--midnight);
}
.col-cost-label {
  font-size: 12px;
  color: var(--slate-400);
}
.col-budget-delta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.col-budget-delta--positive { color: #16a34a; }
.col-budget-delta--negative { color: #dc2626; }
.col-budget-delta--neutral  { color: var(--slate-500); }

.col-card-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 8px;
  font-size: 12px;
  color: var(--slate-600);
}
.col-meta-item {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.col-meta-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--slate-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.col-meta-value {
  font-size: 13px;
  font-weight: 500;
  color: var(--slate-700);
}
.col-meta-value--beach { color: var(--pine); }
.col-meta-value--inland { color: var(--slate-400); }

/* ---- CTA ---- */
.col-cta {
  margin-top: 8px;
  padding: 24px 28px;
  background: var(--pine-50);
  border: 1px solid var(--pine-100);
  border-radius: 16px;
  text-align: center;
}
.col-cta p {
  font-size: 15px;
  color: var(--slate-600);
  margin-bottom: 8px;
}
.col-cta a {
  font-size: 15px;
  font-weight: 600;
  color: var(--pine);
  text-decoration: none;
  transition: color 180ms ease;
}
.col-cta a:hover { color: var(--pine-700); text-decoration: underline; text-underline-offset: 3px; }

/* ---- RESPONSIVE ---- */
@media (max-width: 860px) {
  .col-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .col-container { padding: 28px 14px 56px; }
  .col-hero { margin-bottom: 32px; }
  .col-inputs { padding: 20px 16px 18px; border-radius: 16px; }
  .col-budget-row { flex-direction: column; align-items: stretch; gap: 16px; }
  .col-number-input { font-size: 22px; padding: 12px 14px 12px 32px; }
  .col-currency { font-size: 16px; left: 12px; }
  .col-grid { grid-template-columns: 1fr; }
  .col-card { padding: 16px 14px; }
  .col-card-name { font-size: 18px; }
  .col-mode-btn { padding: 8px 16px; font-size: 13px; }
}

/* ---- ANIMATIONS ---- */
@keyframes col-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.col-card {
  animation: col-fade-in 280ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}