:root {
  --bg: #0d0d0f;
  --surface: #16161a;
  --surface2: #1e1e24;
  --border: #2a2a35;
  --accent: #f7c936;
  --accent2: #f7d836;
  --text: #f0ede8;
  --muted: #9d9ca3;
  --success: #35ff9b;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(247, 201, 54, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247, 201, 54, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

/* ── Two-column layout ── */
.main-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  align-items: start;
}

.upload-section {
  display: flex;
  flex-direction: column;
  align-self: stretch;
  min-width: 0;
}

.results-wrap {
  min-width: 0;
  grid-column: 1;
}

.main-right {
  position: sticky;
  top: 24px;
}

.config-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.config-panel-title {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.config-panel .config-card {
  border: none;
  padding: 0;
  background: none;
}

/* mobile rules moved to end of file to win cascade */

/* ── Header ── */
header { margin-bottom: 64px; }

.badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 4px 12px;
  margin-bottom: 20px;
}

h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(42px, 8vw, 80px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.h1-text {
  display: flex;
  flex-direction: column;
}

.header-logo {
  height: clamp(48px, 8vw, 88px);
  width: auto;
  flex-shrink: 0;
}

h1 span {
  display: block;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.05em;
  margin-top: 12px;
}

/* ── Config ── */
.config-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 16px;
}

.config-label {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
  display: block;
}

select,
input[type="number"] {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  padding: 10px 12px;
  appearance: none;
  outline: none;
  transition: border-color 0.2s;
  cursor: pointer;
}

select:focus,
input[type="number"]:focus { border-color: var(--accent); }

.select-wrap { position: relative; }

.select-wrap::after {
  content: '▾';
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
  font-size: 12px;
}

/* ── Sample bar ── */
.sample-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: none;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.sample-bar .config-label {
  margin-bottom: 0;
  white-space: nowrap;
  flex-shrink: 0;
}

.sample-bar .select-wrap {
  flex: 1;
}

/* ── Upload zone ── */
.upload-zone {
  flex: 1;
  border: 2px dashed var(--border);
  background: var(--surface);
  padding: 64px 40px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  margin-bottom: 0;
}

.upload-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(247, 201, 54, 0.05), transparent);
  opacity: 0;
  transition: opacity 0.2s;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.upload-zone:hover::before,
.upload-zone.drag-over::before { opacity: 1; }

.upload-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  opacity: 0.6;
}

.upload-zone h2 {
  font-family: 'Syne', sans-serif;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.upload-zone p {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.05em;
}

.upload-zone p strong { color: var(--accent); }

#file-input { display: none; }

/* ── Progress ── */
.parse-status {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 24px;
  margin-bottom: 32px;
}

.parse-status.visible { display: block; }

.status-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

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

.status-text {
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.progress-bar-wrap {
  height: 2px;
  background: var(--border);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  width: 0%;
  transition: width 0.3s ease;
}

/* ── Results ── */
.results {
  display: none;
  animation: fadeUp 0.4s ease;
}

.results.visible { display: block; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.file-info-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: none;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
}

.file-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  flex-shrink: 0;
}

.file-name { color: var(--success); font-weight: 500; flex: 1; }
.file-size { color: var(--muted); }

/* ── Stats grid ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 24px;
}

/* 480px rules moved to end of file */

.stat-cell { background: var(--surface); padding: 24px 20px; }

.stat-cell .label {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
  display: block;
}

.stat-cell .value {
  font-family: 'Syne', sans-serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.stat-cell .unit {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  margin-left: 4px;
}

/* ── Time bar ── */
.time-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: none;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.time-bar-label {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 4px;
}

.time-bar-value {
  font-family: 'Syne', sans-serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.time-bar-note {
  font-size: 11px;
  color: var(--muted);
  max-width: 340px;
  line-height: 1.6;
}

/* ── Quote card ── */
.quote-card {
  background: var(--surface2);
  border: 1px solid var(--accent);
  padding: 36px 40px;
  position: relative;
  overflow: hidden;
  margin-bottom: 24px;
}

.quote-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2), transparent);
}

.quote-card::after {
  content: 'COTIZACIÓN';
  position: absolute;
  top: 20px; right: 24px;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--accent);
  opacity: 0.4;
  font-weight: 700;
}

.quote-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

@keyframes price-pop {
  0%   { transform: scale(1);    filter: brightness(1); }
  40%  { transform: scale(1.06); filter: brightness(1.4); }
  100% { transform: scale(1);    filter: brightness(1); }
}

.quote-price.price-pop {
  animation: price-pop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.quote-price {
  font-family: 'Syne', sans-serif;
  font-size: clamp(52px, 10vw, 80px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}

.quote-breakdown {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: grid;
  gap: 8px;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
}

.breakdown-row .bval { color: var(--text); font-weight: 500; }
.breakdown-row.total-line { color: var(--text); font-size: 13px; font-weight: 600; }
.breakdown-row .bval.accent { color: var(--accent); font-size: 14px; }
.breakdown-row .bval.warn { color: #e07b39; font-size: 13px; }

.breakdown-divider { height: 1px; background: var(--border); margin: 6px 0; }

.breakdown-section-title {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
  margin-top: 4px;
}

/* ── Project estimate ── */
.project-estimate {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}

.project-cell {
  background: var(--bg);
  padding: 16px;
}

.project-cell-label {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 6px;
}

.project-cell-value {
  font-family: 'Syne', sans-serif;
  font-size: 20px;
  font-weight: 700;
}

.project-cell-value.accent { color: var(--accent); }

.proj-note {
  margin-top: 10px;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.7;
}

.bd-meta {
  margin-top: 16px;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* ── Footer elements ── */
.disclaimer {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.7;
  letter-spacing: 0.02em;
  padding: 16px;
  margin-top: 16px;
  border-left: 2px solid var(--border);
}

.reset-btn {
  margin-top: 32px;
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 10px 20px;
  cursor: pointer;
  transition: all 0.2s;
}

.reset-btn:hover { border-color: var(--accent); color: var(--accent); }

.whatsapp-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  margin-top: 16px;
  padding: 14px 20px;
  background: #25D366;
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  box-sizing: border-box;
}

.whatsapp-btn:hover { background: #1ebe5d; transform: translateY(-1px); }
.whatsapp-btn:active { transform: translateY(0); }

.error-box {
  display: none;
  background: rgba(255, 92, 53, 0.08);
  border: 1px solid rgba(255, 92, 53, 0.3);
  padding: 16px 20px;
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 24px;
  letter-spacing: 0.03em;
}

.error-box.visible { display: block; }
/* ── H1 title spans ── */
.h1-accent {
  display: block;
  color: var(--accent);
  -webkit-text-fill-color: var(--accent);
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
}

.h1-white {
  display: block;
  color: var(--text);
  -webkit-text-fill-color: var(--text);
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
}

/* ── 3D Viewer ── */
.viewer-wrap {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: none;
  overflow: hidden;
  height: 400px;
}

#viewer-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
}

#viewer-canvas:active { cursor: grabbing; }

.viewer-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 12px 16px;
}

.viewer-tag {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(13,13,15,0.7);
  padding: 4px 8px;
  backdrop-filter: blur(4px);
}

.viewer-controls {
  display: flex;
  gap: 6px;
  pointer-events: all;
}

.viewer-btn {
  background: rgba(13,13,15,0.8);
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  padding: 5px 10px;
  cursor: pointer;
  transition: all 0.15s;
  backdrop-filter: blur(4px);
}

.viewer-btn:hover,
.viewer-btn.active {
  border-color: var(--accent);
  color: var(--accent);
}

.viewer-hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: rgba(13,13,15,0.7);
  padding: 4px 10px;
  backdrop-filter: blur(4px);
  white-space: nowrap;
  opacity: 0.7;
}

/* ── Mobile (must be at end to override later desktop rules) ── */
@media (max-width: 780px) {
  .container { padding: 28px 16px 48px; }
  header { margin-bottom: 28px; }
  h1 { font-size: 26px; gap: 10px; }
  .header-logo { height: 26px; }
  .subtitle { font-size: 11px; word-break: break-word; }
  .main-layout { grid-template-columns: 1fr; gap: 16px; }
  .upload-section { align-self: auto; }
  .upload-zone { flex: none; margin-bottom: 0; padding: 36px 20px; }
  .upload-zone h2 { font-size: 17px; }
  .main-right { position: static; order: -1; }
  .config-panel { display: flex; flex-direction: column; gap: 10px; padding: 16px; }
  .sample-bar { flex-direction: column; align-items: flex-start; gap: 8px; padding: 12px 16px; }
  .sample-bar .select-wrap { width: 100%; }
  .stats-grid { display: flex; flex-direction: column; background: none; gap: 0; }
  .stat-cell { background: var(--surface); display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; border-bottom: 1px solid var(--border); }
  .stat-cell:last-child { border-bottom: none; }
  .stat-cell .label { margin-bottom: 0; display: inline; }
  .stat-cell .value { font-size: 16px; }
  .viewer-wrap { height: 260px; }
  .viewer-hint { font-size: 9px; white-space: normal; text-align: center; width: 80%; }
  .quote-card { padding: 20px 10px; }
  .quote-card::after { display: none; }
  .breakdown-row { font-size: 10px; }
  .breakdown-row.total-line { font-size: 11px; }
  .breakdown-row .bval.accent { font-size: 11px; }
  .reset-btn { width: 100%; text-align: center; padding: 14px 20px; }
}

@media (max-width: 480px) {
  h1 { font-size: 22px; }
  .header-logo { height: 22px; }
  .quote-card { padding: 16px 10px; }
  .project-grid { grid-template-columns: 1fr; }
}