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

:root {
  --bg:        #f4f4f0;
  --surface:   #ffffff;
  --border:    #e0ddd6;
  --text:      #1a1a1a;
  --muted:     #6b6b6b;
  --accent:    #b8963e;
  --accent-dk: #8e7030;
  --green:     #2d7a4f;
  --red:       #b84040;
  --radius:    8px;
  --shadow:    0 2px 12px rgba(0,0,0,.08);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

header {
  background: #111;
  color: #fff;
  padding: 20px 32px;
  display: flex;
  align-items: center;
  gap: 16px;
}
header img { height: 36px; display: block; }
header h1 { font-size: 1.1rem; font-weight: 600; letter-spacing: .03em; }
header .logout-link {
  margin-left: auto;
  color: rgba(255, 255, 255, .7);
  text-decoration: none;
  font-size: .85rem;
  letter-spacing: .03em;
  transition: color .15s;
}
header .logout-link:hover { color: #fff; }

main {
  max-width: 1100px;
  margin: 40px auto;
  padding: 0 20px 60px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

/* ── mode toggle ── */
.mode-toggle {
  display: flex;
  width: 100%;
  background: var(--border);
  border-radius: 6px;
  padding: 3px;
  gap: 3px;
}
.mode-toggle button {
  flex: 1;
  padding: 8px 24px;
  border: none;
  background: transparent;
  border-radius: 4px;
  font-size: .9rem;
  cursor: pointer;
  color: var(--muted);
  font-weight: 500;
  transition: all .15s;
  text-align: center;
}
.mode-toggle button.active {
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 4px rgba(0,0,0,.12);
}

/* ── card ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 32px;
}
.card h2 {
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
}

/* ── form grid ── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
}
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }

label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: .04em;
  text-transform: uppercase;
}
label .req { color: var(--accent); margin-left: 2px; }

input[type=text], input[type=number], select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .95rem;
  color: var(--text);
  background: var(--surface);
  outline: none;
  transition: border-color .15s;
  width: 100%;
}
input:focus, select:focus { border-color: var(--accent); }
input:disabled, select:disabled {
  background: var(--bg);
  color: var(--muted);
  cursor: not-allowed;
}

/* ── searchable combobox ── */
.combobox {
  position: relative;
}
.combobox-input {
  padding: 10px 32px 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .95rem;
  color: var(--text);
  background: var(--surface);
  outline: none;
  transition: border-color .15s;
  width: 100%;
  cursor: pointer;
}
.combobox-input:focus { border-color: var(--accent); }
.combobox-input:disabled {
  background: var(--bg);
  color: var(--muted);
  cursor: not-allowed;
}
.combobox-arrow {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--muted);
  font-size: .7rem;
}
.combobox-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 4px 16px rgba(0,0,0,.12);
  z-index: 100;
  max-height: 240px;
  overflow-y: auto;
}
.combobox-dropdown.open { display: block; }
.combobox-search {
  padding: 8px 12px;
  border: none;
  border-bottom: 1px solid var(--border);
  font-size: .9rem;
  width: 100%;
  outline: none;
  color: var(--text);
  background: var(--surface);
}
.combobox-options { padding: 4px 0; }
.combobox-option {
  padding: 9px 14px;
  cursor: pointer;
  font-size: .9rem;
  color: var(--text);
}
.combobox-option:hover, .combobox-option.focused {
  background: var(--bg);
}
.combobox-option.selected {
  color: var(--accent);
  font-weight: 600;
}
.combobox-empty {
  padding: 12px 14px;
  font-size: .85rem;
  color: var(--muted);
  font-style: italic;
}

/* ── checkboxes ── */
.checks {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.check-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  cursor: pointer;
  user-select: none;
}
.check-label input[type=checkbox] {
  width: 17px; height: 17px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ── submit ── */
.btn-submit {
  margin-top: 8px;
  padding: 12px 32px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
  letter-spacing: .02em;
}
.btn-submit:hover { background: var(--accent-dk); }
.btn-submit:disabled { background: var(--border); color: var(--muted); cursor: not-allowed; }

/* ── result ── */
#result { display: none; }

.price-band {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 28px;
}
.price-cell {
  background: var(--surface);
  padding: 20px 24px;
  text-align: center;
}
.price-cell .label {
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.price-cell .amount {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -.02em;
}
.price-cell.estimate .amount { color: var(--accent); font-size: 2rem; }
.price-cell.lower .amount   { color: var(--muted); }
.price-cell.upper .amount   { color: var(--muted); }

/* ── certainty bar ── */
.certainty-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.certainty-label {
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.certainty-track {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.certainty-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
  transition: width .4s ease;
}
.certainty-value {
  font-size: .85rem;
  font-weight: 700;
  color: var(--text);
  min-width: 40px;
  text-align: right;
}

/* ── market overlay (chrono24) ── */
.market-box {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 28px;
  background: #fafaf7;
}
.market-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
.market-label {
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}
.market-median {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.market-count {
  font-size: .85rem;
  color: var(--muted);
}
.market-warning {
  margin-top: 8px;
  padding: 8px 12px;
  border-radius: 4px;
  background: #fff5e6;
  border: 1px solid #f0c878;
  color: #8a5a00;
  font-size: .85rem;
}

/* ── comparables table ── */
.comparables-title {
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}
th {
  text-align: left;
  padding: 8px 12px;
  font-size: .7rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg); }
td.price { font-weight: 700; color: var(--green); }
td.check-yes { color: var(--green); }
td.check-no  { color: var(--red); }

/* ── error ── */
.error-box {
  background: #fff0f0;
  border: 1px solid #f5c6c6;
  border-radius: var(--radius);
  padding: 16px 20px;
  color: var(--red);
  font-size: .9rem;
  display: none;
}

/* ── spinner ── */
.spinner {
  display: none;
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .6s linear infinite;
  margin-left: 12px;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }