/* ──────────────────────────────────────
   TOKENS
   ────────────────────────────────────── */
:root {
  --clr-bg:        #f7f6f3;
  --clr-surface:   #ffffff;
  --clr-surface-2: #f9f8f6;
  --clr-border:    #ddd9d1;
  --clr-text:      #1a1a1a;
  --clr-text-2:    #7a766e;
  --clr-accent:    #1a1a1a;
  --clr-accent-light: #edebe7;
  --clr-score-10:  #4a6b5a;
  --clr-score-7:   #6b8f6b;
  --clr-score-5:   #b0a58a;
  --clr-score-3:   #c4a07a;
  --clr-score-1:   #bf8a7a;
  --clr-tier-exc:  #4a6b5a;
  --clr-tier-good: #6b8f6b;
  --clr-tier-fair: #b0a58a;
  --clr-tier-nr:   #bf8a7a;
  --radius-sm:     2px;
  --radius-md:     2px;
  --radius-lg:     2px;
  --shadow-sm:     none;
  --shadow-md:     none;
  --shadow-lg:     none;
  --font-display:  'Cormorant Garamond', Georgia, serif;
  --font-body:     'Inter', system-ui, sans-serif;
  --ease-out:      cubic-bezier(.22,1,.36,1);
}

/* ──────────────────────────────────────
   RESET & BASE
   ────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  min-height: 100vh;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }

/* ──────────────────────────────────────
   HEADER
   ────────────────────────────────────── */
.site-header {
  padding: 40px 0 28px;
  text-align: center;
  border-bottom: 1px solid var(--clr-border);
}

.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: .02em;
}

.logo-accent {
  font-weight: 400;
  font-style: italic;
}

.tagline {
  margin-top: 8px;
  font-size: .82rem;
  color: var(--clr-text-2);
  letter-spacing: .14em;
  text-transform: uppercase;
  font-weight: 400;
}

/* ──────────────────────────────────────
   INPUT SECTION
   ────────────────────────────────────── */
.input-section { padding: 8px 0 48px; }

.input-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 40px 36px 36px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: .01em;
}

.section-subtitle {
  color: var(--clr-text-2);
  font-size: .94rem;
  margin-bottom: 28px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group--wide { grid-column: 1 / -1; }

.form-group label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--clr-text-2);
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: .9rem;
  border: 1px solid var(--clr-border);
  border-radius: 0;
  background: var(--clr-surface);
  color: var(--clr-text);
  transition: border-color .2s, box-shadow .2s;
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235c5a56' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px var(--clr-accent-light);
}

.btn-evaluate {
  margin-top: 28px;
  width: 100%;
  padding: 15px;
  font-family: var(--font-body);
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  background: var(--clr-accent);
  color: #fff;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: background .2s, transform .15s;
}

.btn-evaluate:hover:not(:disabled) { background: #333; }
.btn-evaluate:active:not(:disabled) { transform: scale(.985); }
.btn-evaluate:disabled { opacity: .35; cursor: not-allowed; }

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  vertical-align: middle;
  margin-right: 4px;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ──────────────────────────────────────
   RESULTS SECTION
   ────────────────────────────────────── */
.results-section {
  padding: 0 0 60px;
  animation: fadeUp .5s var(--ease-out) both;
}

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

/* Tab navigation */
.tab-nav {
  display: flex;
  gap: 0;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--clr-border);
}

.tab-btn {
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 12px 24px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--clr-text-2);
  cursor: pointer;
  transition: color .2s, border-color .2s;
}

.tab-btn:hover { color: var(--clr-text); }

.tab-btn.active {
  color: var(--clr-text);
  border-bottom-color: var(--clr-text);
}

.tab-panel[hidden] { display: none; }

/* Basic info pills */
.basic-info {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.info-pill {
  display: flex;
  flex-direction: column;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 0;
  padding: 14px 20px;
  flex: 1 1 140px;
  min-width: 140px;
}

.info-label {
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--clr-text-2);
  margin-bottom: 4px;
}

.info-value {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}

.info-hint {
  font-size: .7rem;
  color: #9a8e7a;
  font-style: italic;
  margin-top: 2px;
}

/* Dashboard grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  margin-bottom: 36px;
}

.scores-panel,
.summary-panel {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 28px 28px 24px;
  box-shadow: var(--shadow-sm);
}

.panel-heading {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: .01em;
}

/* Score bars */
.score-row {
  margin-bottom: 18px;
}

.score-row:last-child { margin-bottom: 0; }

.score-row-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
}

.score-criterion {
  font-size: .88rem;
  font-weight: 600;
}

.score-value {
  font-size: .88rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.score-imputed {
  font-size: .72rem;
  color: var(--clr-text-2);
  margin-left: 4px;
}

.bar-track {
  height: 6px;
  background: var(--clr-border);
  border-radius: 0;
  overflow: hidden;
  position: relative;
}

.bar-fill {
  height: 100%;
  border-radius: 0;
  width: 0;
  transition: width .8s var(--ease-out);
}

/* Summary panel */
.summary-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.total-score-ring {
  position: relative;
  width: 120px;
  height: 120px;
  margin-bottom: 16px;
}

.ring-svg { width: 100%; height: 100%; transform: rotate(-90deg); }

.ring-bg {
  fill: none;
  stroke: var(--clr-border);
  stroke-width: 8;
}

.ring-fill {
  fill: none;
  stroke: var(--clr-accent);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 326.73;
  stroke-dashoffset: 326.73;
  transition: stroke-dashoffset 1s var(--ease-out), stroke .4s;
}

.ring-label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.ring-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.ring-of {
  font-size: .75rem;
  color: var(--clr-text-2);
  margin-top: 2px;
}

.tier-badge {
  display: inline-block;
  padding: 6px 20px;
  border-radius: 0;
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--clr-text);
  background: transparent;
  border: 1px solid var(--clr-text);
  margin-bottom: 10px;
}

.tier-badge[data-tier="excellent"] { border-color: var(--clr-tier-exc); color: var(--clr-tier-exc); }
.tier-badge[data-tier="good"]      { border-color: var(--clr-tier-good); color: var(--clr-tier-good); }
.tier-badge[data-tier="fair"]      { border-color: var(--clr-tier-fair); color: var(--clr-tier-fair); }
.tier-badge[data-tier="not-recommended"] { border-color: var(--clr-tier-nr); color: var(--clr-tier-nr); }

.tier-desc {
  font-size: .85rem;
  color: var(--clr-text-2);
  max-width: 220px;
  line-height: 1.45;
}

/* ──────────────────────────────────────
   DRILL-DOWN ACCORDION
   ────────────────────────────────────── */
.drilldown-section {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 28px 28px 12px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 28px;
}

.accordion-item {
  border-bottom: 1px solid var(--clr-border);
}

.accordion-item:last-child { border-bottom: none; }

.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 4px;
  font-family: var(--font-body);
  font-size: .92rem;
  font-weight: 600;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--clr-text);
  text-align: left;
  transition: color .2s;
}

.accordion-trigger:hover { color: var(--clr-accent); }

.accordion-trigger .chevron {
  display: inline-block;
  width: 18px;
  height: 18px;
  transition: transform .25s var(--ease-out);
  flex-shrink: 0;
  margin-left: 12px;
}

.accordion-trigger .chevron svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.accordion-item.open .accordion-trigger .chevron {
  transform: rotate(180deg);
}

.accordion-trigger .trigger-score {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 26px;
  padding: 0 8px;
  border-radius: 0;
  font-size: .75rem;
  font-weight: 600;
  color: #fff;
  margin-left: auto;
  margin-right: 8px;
  flex-shrink: 0;
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s var(--ease-out), padding .35s;
}

.accordion-item.open .accordion-body {
  max-height: 600px;
  padding-bottom: 16px;
}

.drill-table {
  width: 100%;
  font-size: .85rem;
  border-collapse: collapse;
}

.drill-table th,
.drill-table td {
  text-align: left;
  padding: 8px 12px;
}

.drill-table th {
  font-weight: 600;
  color: var(--clr-text-2);
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom: 1px solid #edebe7;
}

.drill-table td {
  border-bottom: 1px solid #edebe7;
}

.drill-table tr:last-child td { border-bottom: 1px solid var(--clr-border); }

.drill-row--subscore th  { color: #4a4a4a; }
.drill-row--subscore td  { color: #1a1a1a; font-weight: 600; }

.drill-row--formula th   { color: #7a766e; }
.drill-row--formula td   { color: #5c5a56; font-style: italic; }

.drill-row--threshold th { color: #7a766e; }
.drill-row--threshold td { color: #5c5a56; font-size: .8rem; }

.drill-row--note th      { color: #9a8e7a; }
.drill-row--note td      { color: #7a766e; font-style: italic; }

.mrt-nearby-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mrt-nearby-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .88rem;
}
.mrt-line-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 0;
  background: var(--clr-accent-light);
  color: var(--clr-text);
  white-space: nowrap;
  letter-spacing: .02em;
}

/* ──────────────────────────────────────
   TRANSACTION PRICES
   ────────────────────────────────────── */
.price-source-note {
  font-size: .8rem;
  color: var(--clr-text-2);
  margin-bottom: 20px;
  font-style: italic;
}

.price-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.price-card {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  background: var(--clr-surface-2);
}

.price-card-title {
  font-family: var(--font-body);
  font-size: .88rem;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.price-count {
  font-weight: 400;
  font-size: .75rem;
  color: var(--clr-text-2);
}

.price-empty {
  font-size: .85rem;
  color: var(--clr-text-2);
  font-style: italic;
  padding: 8px 0;
}

.price-table {
  width: 100%;
  font-size: .84rem;
  border-collapse: collapse;
}

.price-table th {
  text-align: right;
  font-weight: 600;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--clr-text-2);
  padding: 6px 8px;
  border-bottom: 1px solid var(--clr-border);
}

.price-table th:first-child {
  text-align: left;
}

.price-table td {
  text-align: right;
  padding: 8px 8px;
  border-bottom: 1px solid #f0eeea;
  font-variant-numeric: tabular-nums;
}

.price-row-label {
  text-align: left !important;
  font-weight: 600;
  color: var(--clr-text-2);
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.price-table tr:last-child td { border-bottom: none; }

.comp-disclaimer {
  font-size: .82rem;
  line-height: 1.5;
  color: #9a8e7a;
  font-style: italic;
  border-left: 3px solid #ddd9d1;
  padding: 10px 16px;
  margin-bottom: 16px;
  background: var(--clr-surface-2);
}

.comp-summary {
  padding: 20px 24px;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--clr-text);
}

.comp-summary-label {
  font-size: .72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--clr-text-2);
  margin-bottom: 8px;
}

.comp-summary-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.comp-delta {
  font-weight: 600;
}

.comp-delta--lower { color: #4a6b5a; }
.comp-delta--higher { color: #bf8a7a; }
.comp-delta--par { color: #7a766e; }

.chart-row[hidden] { display: none; }

/* Price trend charts */
.trend-charts { margin-top: 24px; }
.trend-charts[hidden] { display: none; }

.chart-row-trend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.chart-wrap-trend {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  padding: 16px;
}

.chart-wrap-trend canvas {
  width: 100% !important;
  max-height: 260px;
}

.trend-summary {
  font-size: .88rem;
  line-height: 1.7;
  color: var(--clr-text);
  padding: 14px 20px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  margin-bottom: 16px;
}

.trend-summary-period {
  font-size: .82rem;
  color: #9a8e7a;
  margin: 4px 0 8px;
}

.trend-summary-table {
  width: 100%;
  margin-top: 10px;
  border-collapse: collapse;
}

.trend-summary-table td {
  padding: 6px 12px 6px 0;
  font-size: .85rem;
  border-bottom: 1px solid var(--clr-border);
}

.trend-summary-table tr:last-child td { border-bottom: none; }

.trend-summary-table td:first-child {
  font-weight: 600;
  white-space: nowrap;
  width: 80px;
}

.trend-summary-table td:nth-child(2) {
  color: #7a766e;
  width: 100px;
}

.trend-summary-table td:last-child { font-weight: 500; }

.trend-up { color: #4a6b5a; }
.trend-down { color: #bf6a5a; }
.trend-flat { color: #c09a3e; }

.trend-empty-msg {
  font-size: .82rem;
  color: #9a8e7a;
  font-style: italic;
  text-align: center;
  padding: 16px 0;
}

/* Comparable prices subsection */
.comparable-section {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.comparable-heading {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: .01em;
}

.chart-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.chart-container {
  position: relative;
  padding: 14px 12px 10px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  background: var(--clr-surface-2);
  max-height: 360px;
  min-width: 0;
}

.chart-container canvas {
  max-height: 300px !important;
}

.chart-container .comparable-heading {
  margin-bottom: 8px;
  font-size: .88rem;
}

.comparable-devs {
  margin-bottom: 16px;
  font-size: .78rem;
  color: var(--clr-text-2);
  line-height: 1.65;
}

.comparable-devs strong {
  font-weight: 700;
  color: var(--clr-text);
}

/* ──────────────────────────────────────
   DATA FOOTER
   ────────────────────────────────────── */
.data-footer {
  text-align: center;
  font-size: .78rem;
  color: var(--clr-text-2);
  padding-top: 4px;
}

.data-footer p { margin-bottom: 4px; }

.source-note { font-style: italic; }

/* ──────────────────────────────────────
   SITE FOOTER
   ────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: 24px 0 32px;
  font-size: .75rem;
  color: var(--clr-text-2);
  letter-spacing: .06em;
  text-transform: uppercase;
  border-top: 1px solid var(--clr-border);
}

/* ──────────────────────────────────────
   RESPONSIVE
   ────────────────────────────────────── */
@media (max-width: 720px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .summary-panel { order: -1; }

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

  .input-card {
    padding: 28px 20px 24px;
  }

  .scores-panel,
  .summary-panel,
  .drilldown-section {
    padding: 20px 18px 12px;
  }

  .info-pill { flex: 1 1 100%; }

  .price-grid { grid-template-columns: 1fr; }
  .chart-row { grid-template-columns: 1fr; }
  .chart-row-trend { grid-template-columns: 1fr; }
}