:root {
  /* Paleta clara */
  --bg: #f2e9e4;
  --text: #22223b;
  --muted: #9a8c98;
  --accent: #4a4e69;
  --accent-soft: rgba(74, 78, 105, 0.06);
  --accent-soft-strong: rgba(74, 78, 105, 0.12);
  --card-bg: #ffffff;
  --card-alt: #f8f1ec;
  --border: #e0d4cc;
  --danger: #b3261e;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --shadow-soft: 0 14px 35px rgba(34, 34, 59, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Montserrat", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  background: radial-gradient(circle at top left, #ffffff 0, #f2e9e4 40%, #e8dad2 100%);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: stretch;
  padding: 24px;
}

.app {
  max-width: 1120px;
  width: 100%;
  margin: auto;
}

header {
  margin-bottom: 16px;
}

h1 {
  margin: 0 0 6px;
  font-size: clamp(25px, 3vw, 32px);
  font-weight: 650;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}

h1 .accent {
  color: var(--accent);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  max-width: 580px;
}

.subtitle.small {
  font-size: 13px;
  max-width: none;
}

main {
  margin-top: 14px;
}

/* Toggle de vistas */
.view-toggle {
  display: inline-flex;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--border);
  padding: 3px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-soft);
}

.view-btn {
  border: none;
  background: transparent;
  padding: 7px 16px;
  border-radius: 16px; /* redondeado más suave */
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease, box-shadow 0.16s ease;
  font-family: inherit;
}

.view-btn.active {
  background: var(--accent);
  color: #f2e9e4;
  box-shadow: 0 8px 16px rgba(74, 78, 105, 0.35);
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 20px;
}

@media (max-width: 800px) {
  body {
    padding: 16px;
  }
  .grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.card {
  background: linear-gradient(145deg, var(--card-bg), var(--card-alt));
  border-radius: var(--radius-xl);
  padding: 18px 18px 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(201, 173, 167, 0.2), transparent 60%);
  pointer-events: none;
}

.card-inner {
  position: relative;
  z-index: 1;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

form {
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.field-group {
  display: flex;
  gap: 10px;
}

.field-group .field {
  flex: 1;
}

label {
  font-size: 13px;
  color: var(--muted);
}

select,
input[type="number"] {
  width: 100%;
  background: #ffffff;
  border-radius: 999px;
  border: 1px solid #dccec4;
  padding: 8px 12px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
  -moz-appearance: textfield;
  font-family: inherit; /* Montserrat también en inputs/selects */
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

select:focus,
input[type="number"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(74, 78, 105, 0.25);
  background: #fffdf9;
}

.helper {
  font-size: 12px;
  color: var(--muted);
}

button[type="submit"] {
  margin-top: 8px;
  align-self: flex-start;
  padding: 9px 18px;
  border-radius: 16px; /* redondeado más suave */
  border: none;
  background: var(--accent); /* sin degradado */
  color: #f2e9e4;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 10px 20px rgba(74, 78, 105, 0.35);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
}

button[type="submit"]:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(74, 78, 105, 0.4);
}

button[type="submit"]:active {
  transform: translateY(0);
  box-shadow: 0 8px 18px rgba(74, 78, 105, 0.35);
}

.bolt {
  font-size: 17px;
}

/* Resultados */

#results-body {
  font-size: 14px;
  color: var(--text);
}

.tagline {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin: 0 0 8px;
}

.summary {
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 10px 12px;
  margin-bottom: 10px;
}

.summary p {
  margin: 2px 0;
}

.summary p strong {
  font-weight: 600;
}

.total {
  font-size: 16px;
  font-weight: 650;
  color: var(--accent);
}

.total-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 11px;
  color: var(--muted);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.chip {
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid #c9ada7;
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-soft);
}

details {
  margin-top: 6px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 14px;
  border: 1px dashed var(--border);
  padding: 7px 10px;
}

summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
}

details p {
  margin: 4px 0;
  font-size: 13px;
}

hr {
  border: none;
  border-top: 1px dashed var(--border);
  margin: 8px 0;
}

.hint-empty {
  font-size: 14px;
  color: var(--muted);
}

.error {
  color: var(--danger);
  font-size: 13px;
  margin-top: 4px;
}

footer {
  margin-top: 16px;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.pill-soft {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--accent-soft-strong);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  border: 1px solid #c9ada7;
}

/* Comparación de escenarios */

.scenario-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-bottom: 4px;
}

@media (min-width: 900px) {
  .scenario-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.scenario-card-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 4px;
}

.scenario-card {
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 9px 10px;
}

.scenario-card.secondary {
  opacity: 0.86;
}

.scenario-meta {
  font-size: 12px;
  color: var(--muted);
}

/* Configuración interna */

.config-section {
  margin-top: 10px;
  padding-top: 4px;
  border-top: 1px dashed var(--border);
}

.config-section:first-of-type {
  border-top: none;
  padding-top: 0;
}

.config-section h3 {
  margin: 4px 0 4px;
  font-size: 14px;
  color: var(--accent);
}

.config-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.config-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 8px;
  align-items: center;
  font-size: 13px;
}

.config-label {
  color: var(--text);
}

.config-msg {
  margin-top: 8px;
  font-size: 13px;
  color: var(--accent);
}

.config-msg.error {
  color: var(--danger);
}