:root {
  --bg: #faf9f7;
  --ink: #211f1a;
  --muted: #6f6a60;
  --faint: #767168;
  --hairline: #e4e1d9;
  --accent: #c05a1c;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Inter", -apple-system, "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  font-feature-settings: "tnum";
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: underline; text-decoration-color: var(--faint); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); }

.masthead, main, footer {
  max-width: 1020px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- topbar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 1020px;
  margin: 0 auto;
  padding: 14px 28px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hairline);
}

.topbar-links {
  display: flex;
  gap: 36px;
  font-size: 13.5px;
  letter-spacing: 0.02em;
}

.topbar-links a {
  text-decoration: none;
  color: var(--muted);
  padding: 2px 0;
  border-bottom: 1.5px solid transparent;
}

.topbar-links a:hover { color: var(--ink); }

.topbar-links a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* contexto de navegación: segunda fila bajo los enlaces; aparece al perder
   de vista el encabezado y colapsa a altura cero mientras no es visible.
   Mismo tratamiento en móvil y escritorio */
.topbar-context {
  width: 100%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  text-align: center;
  border: 0;
  border-top: 1px solid transparent;
  background: none;
  margin: 0;
  padding: 0;
  max-height: 0;
  font: inherit;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--faint);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: max-height 0.25s ease, padding 0.25s ease,
              margin 0.25s ease, opacity 0.25s ease;
}

.topbar-context.is-visible {
  opacity: 1;
  pointer-events: auto;
  max-height: 2.4em;
  margin-top: 11px;
  padding-top: 10px;
  border-top-color: var(--hairline);
}

.topbar-context strong { font-weight: 500; color: var(--ink); }

.topbar-context:hover strong { color: var(--accent); }

@media (max-width: 640px) {
  .topbar { padding: 12px 20px; }
  .topbar-links { gap: 28px; }
  /* alineado a la izquierda para que el nombre largo recorte con elipsis
     (centrado desborda sin mostrarla); en escritorio nunca desborda */
  .topbar-context { text-align: left; }
}

/* ---------- masthead ---------- */

.masthead { padding-top: 56px; }

.kicker {
  margin: 0 0 20px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

h1 {
  margin: 0 0 24px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(34px, 5.4vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.01em;
}

h1 span { font-weight: 400; font-style: italic; color: var(--muted); }

.byline {
  margin: -8px 0 26px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.byline a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--hairline);
}

.byline a:hover { color: var(--accent); border-bottom-color: var(--accent); }

.lede {
  max-width: 680px;
  margin: 0 0 56px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--muted);
}

.views {
  display: flex;
  flex-wrap: wrap;
  gap: 0 28px;
  margin: 0 0 36px;
  border-bottom: 1px solid var(--hairline);
}

.view-tab {
  appearance: none;
  border: none;
  background: none;
  padding: 0 0 10px;
  font: 500 14px var(--sans);
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.view-tab:hover { color: var(--ink); }

.view-tab.is-active {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.picker {
  margin: 0 0 48px;
}

#typeField { margin: 0 0 26px; max-width: 540px; }

/* panorama: solo se muestra el selector de tipo, sin campos ni cifras debajo;
   evita el doble margen antes del primer título */
.picker--analysis { margin-bottom: 0; }
.picker--analysis #typeField { margin-bottom: 0; }

.picker label {
  display: block;
  margin-bottom: 6px;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

/* dropdown custom de carrera */

.cselect {
  position: relative;
  max-width: 540px;
}

.cselect-trigger {
  appearance: none;
  background: none;
  border: none;
  border-bottom: 1px solid var(--ink);
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  color: var(--ink);
  padding: 4px 36px 8px 0;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%236f6a60' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
}

.cselect-trigger:focus-visible {
  outline: none;
  border-bottom-color: var(--accent);
}

.cselect-value.is-placeholder {
  color: var(--faint);
  font-weight: 400;
}

.cselect-panel {
  position: absolute;
  z-index: 30;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  background: var(--bg);
  border: 1px solid var(--hairline);
  box-shadow: 0 18px 44px rgba(33, 31, 26, 0.10);
}

.cselect-panel .cselect-search {
  display: block;
  width: 100%;
  min-width: 0;
  max-width: none;
  border: none;
  border-bottom: 1px solid var(--hairline);
  background: transparent;
  padding: 12px 16px;
  font: 400 14px var(--sans);
  color: var(--ink);
}

.cselect-panel .cselect-search:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

.cselect-list {
  list-style: none;
  margin: 0;
  padding: 6px 0 10px;
  max-height: min(340px, 50vh);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.cselect-group {
  padding: 14px 16px 4px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--faint);
}

.cselect-option {
  padding: 7px 16px;
  font-size: 14.5px;
  cursor: pointer;
}

.cselect-option:hover,
.cselect-option.is-active {
  background: #f1efe8;
  color: var(--accent);
}

.cselect-option[aria-selected="true"] {
  color: var(--accent);
  font-weight: 500;
}

.cselect-none {
  padding: 14px 16px;
  font-size: 14px;
  color: var(--faint);
}

/* subtítulo gris: la carrera genérica bajo el título específico */
.cselect-sub {
  display: block;
  margin-top: 1px;
  font-size: 12px;
  color: var(--faint);
}
.cselect-option:hover .cselect-sub,
.cselect-option.is-active .cselect-sub { color: var(--accent); }

.picker-area {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--faint);
}

.picker-area--note {
  max-width: 540px;
  color: var(--accent);
  line-height: 1.5;
}

/* encabezado del campo carrera: etiqueta + toggle de modo */
.picker-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.picker-mode { display: flex; gap: 4px; }

.picker-mode-btn {
  appearance: none;
  border: none;
  background: none;
  padding: 2px 0;
  margin-left: 16px;
  font: 500 11.5px var(--sans);
  letter-spacing: 0.04em;
  color: var(--faint);
  cursor: pointer;
  border-bottom: 1.5px solid transparent;
}

.picker-mode-btn:first-child { margin-left: 0; }
.picker-mode-btn:hover { color: var(--ink); }
.picker-mode-btn.is-active { color: var(--ink); border-bottom-color: var(--accent); }

.note--warn { color: var(--accent); }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(138px, 1fr));
  gap: 0 24px;
  margin: 0;
  border-top: 1px solid var(--ink);
}

.stats > div { padding: 18px 0 26px; border-top: 1px solid transparent; }

.stats dt {
  margin: 0 0 6px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.stats dd {
  margin: 0;
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 600;
  line-height: 1.1;
}

.stats dd small {
  display: block;
  margin-top: 4px;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
}

/* cifras dentro de una sección (costo y retorno) */
.stats--section { margin: 22px 0 10px; }
.stats--section dd { font-size: 25px; }

/* ---------- sections ---------- */

section { margin: 0; padding: 56px 0 8px; }
section + section { border-top: 1px solid var(--hairline); margin-top: 48px; }
main { padding-bottom: 48px; }

h2 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.005em;
}

h2 .n {
  display: inline-block;
  margin-right: 16px;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--faint);
  letter-spacing: 0.1em;
  transform: translateY(-4px);
}

.note {
  max-width: 640px;
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 14px;
}

.chart { position: relative; margin-bottom: 28px; }
.chart--auto { height: 420px; }

/* ---------- controls ---------- */

.controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 4px;
  margin: 0 0 22px;
}

.controls .spacer { flex: 1; }

.toggle {
  appearance: none;
  border: none;
  background: none;
  padding: 6px 12px;
  font: 500 13px var(--sans);
  color: var(--muted);
  cursor: pointer;
  border-bottom: 1px solid transparent;
}

.toggle:hover { color: var(--ink); }

.toggle.is-active {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

input[type="text"], select {
  appearance: none;
  border: none;
  border-bottom: 1px solid var(--hairline);
  background: transparent;
  padding: 7px 2px;
  font: 400 14px var(--sans);
  color: var(--ink);
  min-width: min(220px, 100%);
  max-width: 100%;
  border-radius: 0;
}

select { cursor: pointer; max-width: min(460px, 100%); }

input[type="text"]:focus, select:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

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

.count { font-size: 13px; color: var(--faint); margin: 0 0 18px; }

/* comparator legend */

.legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 24px;
  margin: 0 0 14px;
  padding: 0;
  font-size: 13px;
}

.legend li { display: flex; align-items: center; gap: 8px; color: var(--muted); }

.legend .swatch {
  display: inline-block;
  width: 18px;
  height: 0;
  border-top: 2.5px solid currentColor;
}

.legend button {
  appearance: none;
  border: none;
  background: none;
  padding: 0 2px;
  font-size: 14px;
  line-height: 1;
  color: var(--faint);
  cursor: pointer;
}

.legend button:hover { color: var(--accent); }

.picker-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 56px;
}

.picker-fields > div { flex: 1 1 320px; max-width: 540px; }

/* selector sin búsqueda: campo accesible pero oculto */
.cselect--nosearch .cselect-search {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  border: 0;
}

/* ---------- secciones colapsables ---------- */

.section-toggle {
  appearance: none;
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  text-align: left;
}

.section-toggle .chev {
  margin-left: auto;
  flex: 0 0 auto;
  color: var(--faint);
  transition: transform 0.15s ease;
}

.section-toggle:hover .chev { color: var(--accent); }

.section-toggle[aria-expanded="true"] .chev { transform: rotate(180deg); }

.section-body { padding-top: 4px; }

/* ---------- detalle colapsable (tabla de oferta) ---------- */

.offer-details { margin-top: 8px; }

.offer-details > summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--muted);
  padding: 4px 0;
  border-bottom: 1px solid var(--hairline);
}

.offer-details > summary::-webkit-details-marker { display: none; }

.offer-details > summary::before {
  content: "";
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--faint);
  border-bottom: 1.5px solid var(--faint);
  transform: rotate(-45deg);
  transition: transform 0.15s ease;
}

.offer-details[open] > summary::before { transform: rotate(45deg); }

.offer-details > summary:hover { color: var(--ink); }
.offer-details > summary:hover::before { border-color: var(--accent); }

.offer-details[open] > summary { margin-bottom: 20px; }

/* ---------- tables ---------- */

.table-wrap { overflow-x: auto; margin-bottom: 28px; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  white-space: nowrap;
}

th {
  font-weight: 500;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--faint);
  text-align: left;
  padding: 0 14px 10px 0;
  border-bottom: 1px solid var(--ink);
}

td {
  padding: 10px 14px 10px 0;
  border-bottom: 1px solid var(--hairline);
  vertical-align: baseline;
}

th.num, td.num { text-align: right; }
td.si { color: var(--faint); }

th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--ink); }
th.sort-asc::after { content: " ↑"; color: var(--accent); }
th.sort-desc::after { content: " ↓"; color: var(--accent); }

/* ---------- perfil de estudiantes ---------- */

.splitbars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 56px;
  margin-bottom: 28px;
}

.splitbar h3 {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 16px;
}

.splitbar-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.splitbar-label {
  flex: 0 0 105px;
  font-size: 13px;
  color: var(--muted);
}

.splitbar-track {
  display: flex;
  flex: 1;
  height: 14px;
  overflow: hidden;
}

.splitbar-track span { display: block; height: 100%; }

.splitbar-pct {
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}

.splitbar-pct.si { color: var(--faint); font-weight: 400; }

.splitbar-label--wide { flex: 0 0 190px; }

.linklike {
  appearance: none;
  border: none;
  background: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.linklike:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.splitbar .legend { margin-top: 4px; }

@media (max-width: 720px) {
  .splitbars { grid-template-columns: 1fr; gap: 32px 0; }
}

/* ---------- rankings ---------- */

.rank { margin: 0 0 44px; }

/* agrupador temático del panorama */
.rank-theme {
  margin: 52px 0 22px;
  padding-bottom: 8px;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--faint);
  border-bottom: 1px solid var(--ink);
}

.rank-theme:first-child { margin-top: 8px; }

.rank h3 {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 17px;
}

.rank-sub {
  margin: 0 0 16px;
  font-size: 13px;
  color: var(--faint);
  max-width: 620px;
}

.rank .controls { margin: 0 0 6px; }

.rank h4 {
  margin: 22px 0 2px;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.rank .legend { margin: 0 0 4px; }

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

footer {
  border-top: 1px solid var(--ink);
  margin-top: 24px;
  padding-top: 36px;
  padding-bottom: 80px;
}

footer h2 { font-size: 18px; }

footer p {
  max-width: 680px;
  font-size: 13.5px;
  color: var(--muted);
}

.colophon {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--hairline);
  font-size: 13px;
  color: var(--faint);
}

.visits {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

/* ---------- about ---------- */

.masthead--about { min-height: calc(100vh - 180px); }

.masthead--about .lede { margin-bottom: 28px; }

.about-links { font-size: 14px; color: var(--muted); }

.footer--about { border-top: none; margin-top: 0; padding-top: 0; }

.footer--about .colophon { margin-top: 0; }

@media (max-width: 640px) {
  .masthead { padding-top: 56px; }
  .stats dd { font-size: 23px; }
  section { padding-top: 40px; }
  .views { gap: 0 18px; }
  .view-tab { padding-top: 8px; }
  /* iOS Safari hace auto-zoom al enfocar inputs/select con font < 16px y no
     revierte: subir a 16px solo en móvil evita el zoom sin tocar el desktop */
  input[type="text"], select, .cselect-panel .cselect-search { font-size: 16px; }
}