/* ============================================
   PROFE ALEXIAI — Portada del Campus
   Mobile-first · Dark theme · Vanilla CSS
   ============================================ */

:root {
  --negro:       #0a0a0a;
  --negro-2:     #111111;
  --negro-3:     #1a1a1a;
  --magenta:     #D91A8A;
  --magenta-2:   #F472B6;
  --blanco:      #FFFFFF;
  --gris-1:      #E5E7EB;
  --gris-2:      #9CA3AF;
  --gris-3:      #374151;
}

/* --- Reset --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--negro);
  color: var(--blanco);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: var(--magenta); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--magenta-2); }

::selection {
  background: var(--magenta);
  color: var(--blanco);
}

:focus-visible {
  outline: 2px solid var(--magenta);
  outline-offset: 3px;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

@media (min-width: 768px) {
  .container { padding: 0 2rem; }
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem 1.25rem 4rem;
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .hero { padding: 6rem 2rem 4rem; }
}

.hero__label {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--magenta);
  margin-bottom: 1.5rem;
  display: block;
}

.hero__title {
  font-family: 'Clash Display', sans-serif;
  font-weight: 700;
  font-size: clamp(2.75rem, 8vw, 7rem);
  letter-spacing: -0.02em;
  line-height: 0.95;
  color: var(--blanco);
  margin-bottom: 1.5rem;
  max-width: 900px;
}

.hero__title .title-line {
  display: block;
}

.hero__subtitle {
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.65);
  max-width: 600px;
}

@media (min-width: 768px) {
  .hero__subtitle { font-size: 1.12rem; }
}

/* Scroll hint arrow */
.hero__scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  color: var(--blanco);
  opacity: 0.5;
}

.hero__scroll-arrow {
  width: 20px;
  height: 20px;
  animation: bounce-arrow 2s ease-in-out infinite;
}

@keyframes bounce-arrow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

/* ============================================
   SECTION LABELS
   ============================================ */
.section-label {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--magenta);
  margin-bottom: 2.5rem;
  display: block;
}

/* ============================================
   CLASES LIST
   ============================================ */
.clases {
  padding: 5rem 0;
}

@media (min-width: 1024px) {
  .clases { padding: 7.5rem 0; }
}

.clases__list {
  list-style: none;
}

/* --- Clase Row --- */
.clase-row {
  display: block;
  padding: 1.75rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-decoration: none;
  color: inherit;
  transition: none;
}

.clase-row:first-child {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Mobile layout: stacked */
.clase-row__inner {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.clase-row__numero {
  font-family: 'Clash Display', sans-serif;
  font-weight: 700;
  font-size: clamp(3.5rem, 10vw, 7rem);
  line-height: 1;
  letter-spacing: -0.03em;
  transition: color 0.25s;
}

.clase-row__body {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.clase-row__titulo {
  font-family: 'Clash Display', sans-serif;
  font-weight: 700;
  font-size: clamp(1.5rem, 3.5vw, 2.75rem);
  letter-spacing: -0.01em;
  line-height: 1.1;
  transition: color 0.25s;
}

.clase-row__subtitulo {
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 600px;
}

@media (min-width: 768px) {
  .clase-row__subtitulo { font-size: 1rem; }
}

.clase-row__estado {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 0.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
}

.clase-row__estado .arrow {
  display: inline-block;
  transition: transform 0.25s ease;
}

/* Desktop layout */
@media (min-width: 1024px) {
  .clase-row { padding: 2.75rem 0; }

  .clase-row__inner {
    flex-direction: row;
    align-items: flex-start;
    gap: 0;
  }

  .clase-row__numero {
    min-width: 160px;
    flex-shrink: 0;
  }

  .clase-row__body {
    flex: 1;
    padding-top: 0.4rem;
  }

  .clase-row__estado {
    min-width: 140px;
    text-align: right;
    flex-shrink: 0;
    margin-top: 0;
    padding-top: 0.6rem;
    justify-content: flex-end;
  }
}

/* --- Published class --- */
.clase-row--publicada .clase-row__numero {
  color: var(--magenta);
}

.clase-row--publicada .clase-row__titulo {
  color: var(--blanco);
}

.clase-row--publicada .clase-row__subtitulo {
  color: var(--gris-1);
}

.clase-row--publicada .clase-row__estado {
  color: var(--magenta);
}

/* Hover on published (desktop only) */
@media (hover: hover) {
  a.clase-row--publicada:hover .clase-row__numero {
    color: var(--magenta);
    filter: brightness(1.2);
  }

  a.clase-row--publicada:hover .clase-row__titulo {
    color: var(--magenta-2);
  }

  a.clase-row--publicada:hover .clase-row__estado .arrow {
    transform: translateX(4px);
  }
}

/* Active state for mobile tap */
a.clase-row--publicada:active .clase-row__titulo {
  color: var(--magenta-2);
}

/* --- Upcoming class --- */
.clase-row--proximamente {
  cursor: default;
}

.clase-row--proximamente .clase-row__numero {
  color: var(--gris-3);
}

.clase-row--proximamente .clase-row__titulo {
  color: var(--gris-2);
}

.clase-row--proximamente .clase-row__subtitulo {
  color: #6B7280;
}

.clase-row--proximamente .clase-row__estado {
  color: var(--gris-2);
}

/* ============================================
   MATERIAL DE CONSULTA
   ============================================ */
.material {
  padding: 5rem 0;
}

@media (min-width: 1024px) {
  .material { padding: 7.5rem 0; }
}

.material__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 768px) {
  .material__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

.material-card {
  background: var(--negro-3);
  border: 1px solid var(--gris-3);
  border-radius: 12px;
  padding: 1.75rem;
}

@media (min-width: 768px) {
  .material-card { padding: 2rem 2.25rem; }
}

.material-card__titulo {
  font-family: 'Clash Display', sans-serif;
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  color: var(--blanco);
  margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
  .material-card__titulo { font-size: 1.75rem; }
}

.material-card__texto {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--gris-1);
  margin-bottom: 1rem;
}

.material-card__estado {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gris-2);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  padding: 3rem 0 1rem;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer__brand {
  font-family: 'Clash Display', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--blanco);
  margin-bottom: 0.4rem;
}

.site-footer__note {
  font-size: 0.85rem;
  color: var(--gris-2);
}

.site-footer__note a {
  color: var(--gris-2);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.site-footer__note a:hover {
  color: var(--gris-1);
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html { scroll-behavior: auto; }

  .hero__scroll-arrow { animation: none; }
}

/* ============================================
   PRINT
   ============================================ */
@media print {
  body { background: #fff; color: #000; }
  .hero__scroll-hint { display: none; }
}