/* ── LIF custom layout CSS ──────────────────────────────────────────────── */
/* Complementa el SCSS de Bootstrap con las secciones de la landing page.   */
/* Este archivo no requiere compilación y se puede editar directamente.      */

:root {
  --lif-red:       #e00f18;
  --lif-red-dark:  #b50c12;
  --lif-red-bg:    #FDF0F1;
  --lif-dark:      #1E2229;
  --lif-mid:       #5E6870;
  --lif-stone:     #F8F9FA;
  --lif-stone-2:   #E9ECEF;
  --lif-border:    #DEE2E6;
  --lif-white:     #FFFFFF;
  --lif-amber:     #B87020;
  --lif-section-pad: clamp(3rem, 7vw, 5.5rem);
}

/* ── Base ──────────────────────────────────────────────────────────────── */
body { font-size: 1rem; line-height: 1.7; }
::selection { background: var(--lif-red); color: white; }

h1, h2, h3, h4 {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  text-wrap: balance;
}

p { max-width: 68ch; }

/* ── Quarto page chrome: eliminar padding lateral del full layout ───────── */
#quarto-content { padding: 0 !important; }
#quarto-document-content { padding: 0 !important; margin: 0 !important; }
main.content { padding: 0 !important; }
.page-full .page-columns { grid-template-columns: 1fr !important; }

/* ── SECCIÓN BASE ──────────────────────────────────────────────────────── */
.lif-section {
  padding-block: var(--lif-section-pad);
}
.lif-section-alt { background: var(--lif-stone); }
.lif-section-dark { background: var(--lif-dark); color: white; }
.lif-section-dark h2 { color: white; }
.lif-section-dark p  { color: rgba(255,255,255,0.75); }

.lif-container {
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
}

/* ── EYEBROW / SECTION NUM ─────────────────────────────────────────────── */
.lif-eyebrow {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--lif-red);
  margin-bottom: 0.6rem;
}
.lif-section-dark .lif-eyebrow { color: rgba(255,255,255,0.45); }

.lif-section-num {
  display: block;
  font-family: 'Courier New', monospace;
  font-size: 0.7rem;
  color: var(--lif-mid);
  letter-spacing: 0.07em;
  margin-bottom: 0.4rem;
}

.lif-section-header { margin-bottom: clamp(2rem, 5vw, 3rem); }
.lif-section-header h2 { color: var(--lif-dark); }
.lif-section-header p { margin-top: 0.75rem; color: var(--lif-mid); font-size: 1.05rem; }

/* ── HERO ──────────────────────────────────────────────────────────────── */
.lif-hero {
  background: var(--lif-dark);
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  padding-block: clamp(4rem, 10vw, 7rem) clamp(3rem, 7vw, 5.5rem);
  position: relative;
  overflow: hidden;
}

.lif-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 40%;
  background: linear-gradient(to top, rgba(192,13,30,0.08), transparent);
  pointer-events: none;
}

.lif-hero__kicker {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.75rem;
}

.lif-hero__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--lif-red);
  flex-shrink: 0;
}

.lif-hero__kicker-text {
  font-size: 0.73rem;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
}

.lif-hero h1 {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: clamp(2.6rem, 6.5vw, 5rem);
  line-height: 1.06;
  color: white;
  max-width: 14ch;
  margin-bottom: 1.25rem;
}

.lif-hero__accent { color: var(--lif-red); }

.lif-hero__tagline {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.65);
  max-width: 54ch;
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.lif-hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
  margin-bottom: 3rem;
}

.lif-hero__domain {
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.75rem;
  font-family: 'Courier New', monospace;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.04em;
}

.lif-hero__domain span { color: rgba(255,255,255,0.5); }

/* ── BOTONES ───────────────────────────────────────────────────────────── */
.lif-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.4rem;
  border-radius: 3px;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none !important;
  transition: opacity 0.15s, transform 0.1s;
  cursor: pointer;
  border: none;
}

.lif-btn:hover { opacity: 0.88; transform: translateY(-1px); }
.lif-btn:active { transform: translateY(0); }

.lif-btn-primary { background: var(--lif-red); color: white; }
.lif-btn-outline {
  background: transparent;
  color: rgba(255,255,255,0.75);
  border: 1px solid rgba(255,255,255,0.25);
}
.lif-btn-outline:hover { color: white; }

/* ── ESTADÍSTICAS ──────────────────────────────────────────────────────── */
.lif-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  border: 1px solid var(--lif-border);
  border-radius: 4px;
  overflow: hidden;
}

.lif-stat {
  padding: 2rem 1.75rem;
  border-right: 1px solid var(--lif-border);
}

.lif-stat:last-child { border-right: none; }

.lif-stat__num {
  display: block;
  font-family: 'Courier New', monospace;
  font-size: clamp(2.4rem, 4.5vw, 3.2rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--lif-red);
  line-height: 1;
  margin-bottom: 0.6rem;
}

.lif-stat__label {
  font-size: 0.9rem;
  color: var(--lif-mid);
  line-height: 1.5;
}

.lif-stat__source {
  display: block;
  font-size: 0.68rem;
  font-family: 'Courier New', monospace;
  color: var(--lif-border);
  margin-top: 0.6rem;
  letter-spacing: 0.04em;
}

/* ── PROBLEMA: layout 2 col ────────────────────────────────────────────── */
.lif-problem-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 3rem;
  margin-top: 2.5rem;
  align-items: start;
}

@media (max-width: 700px) { .lif-problem-grid { grid-template-columns: 1fr; } }

.lif-callout {
  border-left: 3px solid var(--lif-red);
  padding: 1.5rem 1.75rem;
  background: var(--lif-red-bg);
  border-radius: 0 4px 4px 0;
}

.lif-callout__label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lif-red);
  margin-bottom: 0.6rem;
}

.lif-callout blockquote {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--lif-dark);
  margin: 0;
}

/* ── FLUJO PROPUESTA ───────────────────────────────────────────────────── */
.lif-flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--lif-border);
  border: 1px solid var(--lif-border);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 2.5rem;
}

.lif-flow-step {
  background: var(--lif-white);
  padding: 1.75rem 1.5rem;
}

.lif-section-alt .lif-flow-step { background: var(--lif-stone); }

.lif-flow-step__num {
  font-family: 'Courier New', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--lif-mid);
  margin-bottom: 0.5rem;
}

.lif-flow-step h4 {
  color: var(--lif-dark);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.lif-flow-step p {
  font-size: 0.875rem;
  color: var(--lif-mid);
  max-width: none;
  margin: 0;
}

/* ── OBJETIVOS ─────────────────────────────────────────────────────────── */
.lif-objetivos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.lif-objetivo {
  border-top: 2px solid var(--lif-red);
  padding-top: 1.25rem;
}

.lif-objetivo__tag {
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lif-red);
  margin-bottom: 0.5rem;
}

.lif-objetivo h3 { font-size: 1.05rem; color: var(--lif-dark); margin-bottom: 0.6rem; }
.lif-objetivo p  { font-size: 0.875rem; color: var(--lif-mid); max-width: none; margin: 0; }

/* ── MODELOS ───────────────────────────────────────────────────────────── */
.lif-modelos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (max-width: 660px) { .lif-modelos { grid-template-columns: 1fr; } }

.lif-modelo {
  border: 1px solid var(--lif-border);
  border-radius: 4px;
  padding: 2rem;
  background: var(--lif-white);
}

.lif-section-alt .lif-modelo { background: var(--lif-stone-2); }

.lif-modelo__header {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}

.lif-modelo__icon {
  width: 40px; height: 40px;
  border-radius: 3px;
  background: var(--lif-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.lif-modelo h3 { font-size: 1rem; color: var(--lif-dark); margin-bottom: 0.2rem; }
.lif-modelo__sub { font-size: 0.78rem; color: var(--lif-mid); }

.lif-modelo ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.55rem; }
.lif-modelo li { font-size: 0.875rem; color: var(--lif-mid); padding-left: 1.1rem; position: relative; }
.lif-modelo li::before { content: '→'; position: absolute; left: 0; color: var(--lif-red); font-size: 0.75rem; top: 0.12em; }

/* ── VALOR ─────────────────────────────────────────────────────────────── */
.lif-valor {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--lif-border);
  border: 1px solid var(--lif-border);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 2.5rem;
}

@media (max-width: 680px) { .lif-valor { grid-template-columns: 1fr; } }

.lif-valor-col { background: var(--lif-white); padding: 2.5rem 2rem; }
.lif-section-alt .lif-valor-col { background: var(--lif-stone-2); }

.lif-valor-col__label {
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lif-amber);
  margin-bottom: 0.5rem;
}

.lif-valor-col h3 { color: var(--lif-dark); font-size: 1.15rem; margin-bottom: 1.25rem; }
.lif-valor-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.8rem; }
.lif-valor-col li { font-size: 0.9rem; color: var(--lif-mid); padding-left: 1.1rem; position: relative; }
.lif-valor-col li::before { content: '◆'; position: absolute; left: 0; color: var(--lif-red); font-size: 0.5rem; top: 0.4em; }

.lif-nota {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--lif-border);
  font-size: 0.73rem;
  color: var(--lif-mid);
  font-family: 'Courier New', monospace;
  line-height: 1.55;
}

/* ── EQUIPO ────────────────────────────────────────────────────────────── */
.lif-group-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lif-mid);
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--lif-border);
  margin-bottom: 1.1rem;
}

.lif-equipo-groups { display: flex; flex-direction: column; gap: 2.5rem; margin-top: 2rem; }

.lif-miembros {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 0.85rem;
}

.lif-miembro {
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--lif-border);
  border-radius: 4px;
  background: var(--lif-white);
}

.lif-section-alt .lif-miembro { background: var(--lif-stone-2); }

.lif-miembro__nombre { font-weight: 600; color: var(--lif-dark); font-size: 0.9rem; margin-bottom: 0.15rem; }
.lif-miembro__rol    { font-size: 0.78rem; color: var(--lif-red); font-weight: 500; }
.lif-miembro__area   { font-size: 0.72rem; color: var(--lif-mid); margin-top: 0.15rem; }

/* ── INSTITUCIONALIDAD ─────────────────────────────────────────────────── */
.lif-fac-primary {
  padding: 1.1rem 1.4rem;
  border: 1px solid var(--lif-red);
  border-radius: 4px;
  background: var(--lif-red-bg);
  font-size: 0.875rem;
  color: var(--lif-dark);
  display: inline-block;
}

.lif-fac-primary__label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lif-red);
  margin-bottom: 0.3rem;
}

.lif-tags { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }

.lif-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--lif-border);
  border-radius: 99px;
  font-size: 0.8rem;
  color: var(--lif-mid);
  background: var(--lif-white);
}

.lif-section-alt .lif-tag { background: var(--lif-stone-2); }

.lif-tag-accent {
  border-color: var(--lif-red);
  color: var(--lif-red);
  background: var(--lif-red-bg);
}

/* ── CTA ───────────────────────────────────────────────────────────────── */
.lif-cta {
  background: var(--lif-red);
  padding-block: var(--lif-section-pad);
  color: white;
}

.lif-cta h2 { color: white; }

.lif-cta-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 640px) { .lif-cta-grid { grid-template-columns: 1fr; } }

.lif-contact-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 0.5rem;
}

/* ── FOOTER ────────────────────────────────────────────────────────────── */
.lif-footer {
  background: var(--lif-dark);
  padding-block: 1.75rem;
}

.lif-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.lif-footer__brand {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.65);
}

.lif-footer__meta {
  font-size: 0.7rem;
  font-family: 'Courier New', monospace;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.04em;
}

/* ── Quarto title-block override ─────────────────────────────────────────
   Cuando page-layout: full, Quarto agrega un title-block arriba del
   contenido. Lo ocultamos porque el hero ya tiene el título. */
.page-layout-full #title-block-header { display: none !important; }

/* ── DIVIDER ───────────────────────────────────────────────────────────── */
.lif-divider { height: 1px; background: var(--lif-border); margin: 0; }

/* ── REDUCED MOTION ────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .lif-btn { transition: none; }
}

/* ── INVESTIGACIÓN ───────────────────────────────────────────────────────── */
.lif-research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--lif-border);
  border: 1px solid var(--lif-border);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 2.5rem;
}

.lif-research-card {
  background: var(--lif-white);
  padding: 2rem 1.75rem;
  position: relative;
}

.lif-research-card__num {
  font-family: 'Courier New', monospace;
  font-size: 2rem;
  font-weight: 700;
  color: var(--lif-red-bg);
  line-height: 1;
  margin-bottom: 0.75rem;
  /* Large ghosted number like MIT LFE */
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  color: var(--lif-stone-2);
  pointer-events: none;
  user-select: none;
}

.lif-research-card h3 {
  font-size: 1.05rem;
  color: var(--lif-dark);
  margin-bottom: 0.65rem;
  padding-right: 3rem; /* avoid overlap with num */
}

.lif-research-card p {
  font-size: 0.875rem;
  color: var(--lif-mid);
  max-width: none;
  margin-bottom: 1rem;
}

.lif-research-card__tags {
  display: block;
  font-size: 0.68rem;
  font-family: 'Courier New', monospace;
  color: var(--lif-mid);
  letter-spacing: 0.03em;
  line-height: 1.6;
  border-top: 1px solid var(--lif-border);
  padding-top: 0.75rem;
  margin-top: auto;
}

/* ── PUBLICACIONES ───────────────────────────────────────────────────────── */
.lif-pub-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--lif-border);
  border-radius: 4px;
  overflow: hidden;
}

.lif-pub {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 0;
  border-bottom: 1px solid var(--lif-border);
  background: var(--lif-white);
  transition: background 0.12s;
}

.lif-section-alt .lif-pub { background: var(--lif-stone-2); }
.lif-pub:last-child { border-bottom: none; }
.lif-pub:hover { background: var(--lif-red-bg); }

.lif-pub__year {
  padding: 1.75rem 0 1.75rem 1.5rem;
  font-family: 'Courier New', monospace;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--lif-red);
  letter-spacing: 0.06em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  display: flex;
  align-items: flex-start;
  border-right: 2px solid var(--lif-red);
}

.lif-pub__body {
  padding: 1.75rem 1.75rem 1.75rem 1.5rem;
}

.lif-pub__body h4 {
  font-size: 0.975rem;
  color: var(--lif-dark);
  margin-bottom: 0.3rem;
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.lif-pub__body > p {
  font-size: 0.78rem;
  color: var(--lif-mid);
  margin-bottom: 0.75rem;
  max-width: none;
  line-height: 1.5;
}

.lif-pub__body > p:first-of-type {
  font-size: 0.82rem;
  color: var(--lif-mid);
  font-style: italic;
  margin-bottom: 0.5rem;
}

.lif-pub__cat {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  background: var(--lif-stone-2);
  border: 1px solid var(--lif-border);
  border-radius: 99px;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--lif-mid);
  margin-right: 0.35rem;
  margin-top: 0.5rem;
}

.lif-pub__link {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--lif-red);
  text-decoration: none;
  margin-top: 0.75rem;
}

.lif-pub__link:hover { text-decoration: underline; }

.lif-btn-red {
  background: var(--lif-red);
  color: white;
  text-decoration: none !important;
}

/* ── PRESENTACIONES ──────────────────────────────────────────────────────── */
.lif-talks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.lif-talk {
  border: 1px solid var(--lif-border);
  border-radius: 4px;
  padding: 1.5rem;
  background: var(--lif-white);
}

.lif-talk__year {
  font-family: 'Courier New', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--lif-red);
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
  display: block;
}

.lif-talk h4 {
  font-size: 0.95rem;
  color: var(--lif-dark);
  margin-bottom: 0.5rem;
}

.lif-talk p {
  font-size: 0.855rem;
  color: var(--lif-mid);
  max-width: none;
  margin: 0 0 0.75rem;
}

.lif-talk__link {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--lif-red);
}

/* ── PERSONAS ────────────────────────────────────────────────────────────── */
.lif-people-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.lif-person {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  border: 1px solid var(--lif-border);
  border-radius: 4px;
  padding: 1.75rem;
  background: var(--lif-white);
}

.lif-section-alt .lif-person { background: var(--lif-stone-2); }

.lif-person--pi {
  border-left: 3px solid var(--lif-red);
  border-radius: 0 4px 4px 0;
}

.lif-person__photo {
  width: 72px; height: 72px;
  border-radius: 4px;
  flex-shrink: 0;
  object-fit: cover;
}

.lif-person__photo--initials {
  background: var(--lif-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  color: white;
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.lif-person__info h3 { font-size: 1.05rem; color: var(--lif-dark); margin-bottom: 0.2rem; }
.lif-person__role { font-size: 0.78rem; color: var(--lif-red); font-weight: 600; display: block; margin-bottom: 0.25rem; }
.lif-person__affil { font-size: 0.8rem; color: var(--lif-mid); display: block; margin-bottom: 0.35rem; }
.lif-person__grant {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  background: var(--lif-red-bg);
  border: 1px solid var(--lif-red);
  border-radius: 99px;
  font-size: 0.67rem;
  font-weight: 600;
  color: var(--lif-red);
  margin-bottom: 0.5rem;
}
.lif-person__link { font-size: 0.78rem; color: var(--lif-red); margin-right: 1rem; }

.lif-students-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lif-mid);
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--lif-border);
  margin-top: 2rem;
  margin-bottom: 1.25rem;
  display: block;
}

.lif-students-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}

.lif-student {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.6rem;
}

.lif-student__photo {
  width: 80px; height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--lif-border);
}

.lif-student__name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--lif-dark);
}

.lif-student__role {
  font-size: 0.72rem;
  color: var(--lif-mid);
}

/* ── SPONSORS ────────────────────────────────────────────────────────────── */
.lif-sponsors-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2rem;
  align-items: center;
}

.lif-sponsor {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
}

.lif-sponsor__logo {
  max-height: 56px;
  max-width: 200px;
  object-fit: contain;
  filter: grayscale(20%);
}

.lif-sponsor__text-logo {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--lif-dark);
  letter-spacing: 0.08em;
  line-height: 1;
  height: 56px;
  display: flex;
  align-items: center;
}

.lif-sponsor__name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--lif-dark);
}

.lif-sponsor__sub {
  font-size: 0.72rem;
  color: var(--lif-mid);
  font-family: 'Courier New', monospace;
}

/* ── BARRA DE NAVEGACIÓN ESTILO HDL ─────────────────────────────────────── */

/* General */
.navbar {
  background-color: var(--lif-red) !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding-block: 0.5rem !important;
}

/* Mobile button style */
.navbar-toggler {
  border: none !important;
}
.navbar-toggler-icon {
  filter: brightness(0) invert(1); /* Hamburger blanco */
}

/* Desktop Navbar Enhancements */
@media (min-width: 992px) {
  .navbar {
    padding-block: 0 !important;
  }
  
  /* Contenedor del logo colgante tipo HDL */
  .navbar-brand-container {
    box-shadow: 0px 4px 30px rgba(0, 0, 0, 0.3);
    background-color: #e00f18 !important;
    padding: 12px 24px !important;
    margin-left: 40px !important;
    margin-right: 20px !important;
    transform: translateY(8px);
    border-bottom-left-radius: 4px;
    border-bottom-right-radius: 4px;
    z-index: 1000;
    display: flex !important;
    align-items: center !important;
  }
  
  .navbar-logo {
    max-height: 56px !important;
    width: auto !important;
    max-width: 320px !important;
  }
  
  .navbar-title {
    display: none !important;
  }
  
  /* Enlaces con efecto hover de línea inferior */
  .navbar-nav .nav-link {
    font-family: 'DM Sans', sans-serif !important;
    font-weight: 500 !important;
    font-size: 0.95rem !important;
    color: rgba(255, 255, 255, 0.9) !important;
    margin-inline: 12px;
    padding-bottom: 6px !important;
    border-bottom: 3px solid transparent !important;
    transition: border-bottom-color 0.15s ease, color 0.15s ease !important;
  }
  
  .navbar-nav .nav-link:hover,
  .navbar-nav .nav-link.active {
    color: #ffffff !important;
    border-bottom-color: #ffffff !important;
    opacity: 1 !important;
  }
  
  /* Botón de visita externo (derecha) */
  .navbar-nav.ms-auto .nav-link {
    border: 2px solid #ffffff !important;
    padding: 6px 16px !important;
    font-weight: 700 !important;
    font-size: 0.9rem !important;
    border-radius: 0 !important;
    margin-left: 20px;
    border-bottom: 2px solid #ffffff !important; /* anula la línea de hover de 3px */
    transition: background-color 0.15s, color 0.15s !important;
  }
  
  .navbar-nav.ms-auto .nav-link:hover {
    background-color: #ffffff !important;
    color: #e00f18 !important;
    border-bottom: 2px solid #ffffff !important;
  }
  
  .navbar-nav.ms-auto .nav-link.active {
    border-bottom: 2px solid #ffffff !important;
  }
}

/* Estilo para menú móvil */
@media (max-width: 991px) {
  .navbar-brand-container {
    margin-left: 10px !important;
  }
  .navbar-logo {
    max-height: 42px !important;
    width: auto !important;
    max-width: 240px !important;
  }
  .navbar-title {
    display: none !important;
  }
  .navbar-collapse {
    background-color: #e00f18 !important;
    padding: 15px;
    margin-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  .navbar-nav .nav-link {
    padding-block: 8px !important;
    color: #ffffff !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  }
  .navbar-nav.ms-auto {
    margin-top: 10px;
  }
  .navbar-nav.ms-auto .nav-link {
    border: 1px solid #ffffff !important;
    text-align: center;
    margin-top: 5px;
  }
}