/* =========================================================
   Room Type Predictor — NYC Airbnb terminal theme
   Design tokens: near-black base, borough-accent system,
   Space Grotesk (display) / Inter (body) / JetBrains Mono (data)
   ========================================================= */

:root {
  /* base palette */
  --bg: #0B0E14;
  --bg-alt: #0F131B;
  --card: #12161F;
  --card-raised: #171C27;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);

  --text: #EDEFF4;
  --text-dim: #9AA2B1;
  --text-faint: #5C6474;

  /* borough accent system (subway-line inspired) */
  --manhattan: #FF9800;
  --brooklyn: #00BFA5;
  --queens: #7C4DFF;
  --bronx: #FF6E6E;
  --staten: #78909C;

  /* active accent — swapped by JS per borough selection */
  --accent: #00BFA5;
  --accent-dim: rgba(0, 191, 165, 0.16);
  --accent-line: rgba(0, 191, 165, 0.4);

  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
}

body {
  position: relative;
  overflow-x: hidden;
}

/* ---------------- ambient background ---------------- */

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
}

.bg-glow {
  position: fixed;
  inset: -20%;
  z-index: 0;
  background:
    radial-gradient(560px 420px at 18% 12%, var(--accent-dim), transparent 65%),
    radial-gradient(480px 380px at 85% 30%, rgba(124, 77, 255, 0.10), transparent 60%);
  filter: blur(10px);
  transition: background 900ms var(--ease);
  pointer-events: none;
}

/* ---------------- layout shell ---------------- */

.scene {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px 60px;
}

/* ---------------- header ---------------- */

.site-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--card-raised);
  border: 1px solid var(--line);
  color: var(--accent);
  transition: color 500ms var(--ease), box-shadow 500ms var(--ease);
  box-shadow: 0 0 0 0 var(--accent-dim);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px 7px 10px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-dim);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-faint);
  box-shadow: 0 0 0 0 transparent;
}

.status-dot.ok {
  background: #2ED191;
  animation: pulse-dot 2.2s ease-in-out infinite;
}

.status-dot.err {
  background: #FF5C5C;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(46, 209, 145, 0.5); }
  50% { box-shadow: 0 0 0 5px rgba(46, 209, 145, 0); }
}

/* ---------------- terminal grid ---------------- */

.terminal {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 20px;
  align-items: start;
}

@media (max-width: 900px) {
  .terminal { grid-template-columns: 1fr; }
}

.pane {
  background: linear-gradient(180deg, var(--card) 0%, var(--bg-alt) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  overflow: hidden;
  animation: rise 640ms var(--ease) both;
}

.pane-form { animation-delay: 40ms; }
.pane-readout { animation-delay: 140ms; }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.pane::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-line), transparent);
  opacity: 0.7;
}

.pane-head { margin-bottom: 22px; }

.pane-eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 10px;
  transition: color 500ms var(--ease);
}

.pane-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.pane-desc {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.55;
  max-width: 42ch;
}

/* ---------------- form ---------------- */

.field-group {
  border: none;
  padding: 0;
  margin: 0 0 22px;
}

.field-group legend {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0 0 12px;
}

.field { margin-bottom: 14px; }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 6px;
  font-weight: 500;
}

.field input[type="text"],
.field input[type="number"] {
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13.5px;
  padding: 11px 12px;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease), background 220ms var(--ease);
}

.field select {
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13.5px;
  padding: 11px 12px;
  border-radius: var(--radius-sm);
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239AA2B1' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.field input:focus-visible,
.field select:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.field input::placeholder { color: var(--text-faint); }

.input-affix {
  display: flex;
  align-items: center;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.input-affix:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.input-affix .affix {
  padding: 0 0 0 12px;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 13.5px;
}

.input-affix input {
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
}

/* sliders */

.slider-value {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 12px;
  transition: color 500ms var(--ease);
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 999px;
  background: var(--line-strong);
  outline: none;
  margin-top: 4px;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--accent-line);
  transition: transform 160ms var(--ease), background 500ms var(--ease);
}

input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 3px solid var(--bg);
  transition: transform 160ms var(--ease), background 500ms var(--ease);
}

/* combobox / searchable neighbourhood */

.combo { position: relative; }

.combo-list {
  list-style: none;
  margin: 6px 0 0;
  padding: 6px;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 240px;
  overflow-y: auto;
  background: var(--card-raised);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  box-shadow: 0 16px 40px rgba(0,0,0,0.45);
  z-index: 20;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 180ms var(--ease), transform 180ms var(--ease);
}

.combo-list.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.combo-list li {
  padding: 9px 10px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.combo-list li mark {
  background: transparent;
  color: var(--accent);
  font-weight: 600;
}

.combo-list li:hover,
.combo-list li.active {
  background: var(--accent-dim);
  color: var(--text);
}

.combo-list li.empty {
  color: var(--text-faint);
  cursor: default;
}

.combo-list li.empty:hover { background: transparent; }

.combo-list::-webkit-scrollbar { width: 8px; }
.combo-list::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 8px; }

/* actions */

.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.btn-primary,
.btn-ghost {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13.5px;
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 160ms var(--ease), box-shadow 220ms var(--ease), background 220ms var(--ease), border-color 220ms var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-primary {
  background: var(--accent);
  color: #06110E;
  flex: 1;
  justify-content: center;
  box-shadow: 0 10px 30px -12px var(--accent-line);
}

.btn-primary:hover { transform: translateY(-1px); filter: brightness(1.06); }
.btn-primary:active { transform: translateY(0); }

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border-color: var(--line-strong);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--accent-line);
  background: var(--accent-dim);
}

.btn-block { width: 100%; justify-content: center; margin-top: 18px; }

.btn-loader {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid rgba(6, 17, 14, 0.35);
  border-top-color: #06110E;
  display: none;
  animation: spin 700ms linear infinite;
}

.btn-primary.loading .btn-loader { display: inline-block; }
.btn-primary.loading .btn-label { opacity: 0.85; }

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

.form-error {
  min-height: 18px;
  margin: 12px 0 0;
  font-size: 12.5px;
  color: #FF8080;
  font-family: var(--font-mono);
}

/* ---------------- readout pane ---------------- */

.readout-idle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 10px 20px;
  color: var(--text-faint);
  gap: 18px;
}

.idle-skyline {
  width: 100%;
  max-width: 300px;
  height: auto;
  opacity: 0.55;
}

.idle-skyline rect {
  fill: var(--card-raised);
  stroke: var(--line-strong);
  stroke-width: 1;
  animation: skyline-breathe 4.5s ease-in-out infinite;
}

.idle-skyline rect:nth-child(odd) { animation-delay: 0.4s; }
.idle-skyline rect:nth-child(3n) { animation-delay: 0.9s; }

@keyframes skyline-breathe {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.readout-idle p {
  font-size: 13px;
  max-width: 32ch;
  line-height: 1.6;
}

/* loading */

.readout-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 60px 10px;
  position: relative;
}

.scan-line {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  position: relative;
  overflow: hidden;
  border-radius: 4px;
}

.scan-line::after {
  content: "";
  position: absolute;
  top: 0; left: -40%;
  width: 40%;
  height: 100%;
  background: linear-gradient(90deg, transparent, #fff, transparent);
  animation: scan-move 1.3s ease-in-out infinite;
}

@keyframes scan-move {
  0% { left: -40%; }
  100% { left: 100%; }
}

.readout-loading p {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

/* result */

.readout-result { animation: rise 480ms var(--ease) both; }

.result-hero {
  text-align: center;
  padding: 18px 10px 26px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.result-hero-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.result-hero-value {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--accent);
  letter-spacing: -0.01em;
  animation: value-in 520ms var(--ease) both;
  transition: color 500ms var(--ease);
}

@keyframes value-in {
  from { opacity: 0; transform: scale(0.92) translateY(4px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.result-hero-conf {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  background: var(--card-raised);
  border: 1px solid var(--line);
  padding: 5px 12px;
  border-radius: 999px;
}

.prob-bars {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 22px;
}

.prob-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.prob-row-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12.5px;
}

.prob-row-name {
  color: var(--text-dim);
  font-weight: 500;
}

.prob-row-pct {
  font-family: var(--font-mono);
  color: var(--text);
}

.prob-track {
  height: 8px;
  border-radius: 999px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  overflow: hidden;
}

.prob-fill {
  height: 100%;
  border-radius: 999px;
  width: 0%;
  transition: width 900ms var(--ease);
  position: relative;
  overflow: hidden;
}

.prob-fill::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.25) 50%, rgba(255,255,255,0) 100%);
  transform: translateX(-100%);
  animation: shimmer 1.8s ease-in-out 300ms 1;
}

@keyframes shimmer {
  to { transform: translateX(100%); }
}

.prob-row.winner .prob-row-name,
.prob-row.winner .prob-row-pct { color: var(--text); font-weight: 600; }

.result-meta {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 4px;
}

.meta-item {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.meta-key {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}

.meta-val {
  font-size: 12.5px;
  color: var(--text);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------------- footer ---------------- */

.site-foot {
  margin-top: 34px;
  display: flex;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
}

.foot-dot { opacity: 0.5; }

/* ---------------- responsive ---------------- */

@media (max-width: 560px) {
  .scene { padding: 20px 16px 40px; }
  .pane { padding: 20px; }
  .field-row { grid-template-columns: 1fr; }
  .result-meta { grid-template-columns: 1fr; }
  .pane-title { font-size: 21px; }
  .result-hero-value { font-size: 28px; }
}