:root {
  --azul:  #2b3ea5;
  --rojo:  #fe0000;
  --negro: #212121;
  --hielo: #f4f1e4;

  --font-display: 'Reyda', serif;
  --font-body:    'Recoleta', serif;
}

@font-face {
  font-family: 'Reyda';
  src: url('assets/fonts/reyda-regular.otf') format('opentype');
  font-weight: 400;
}
@font-face {
  font-family: 'Reyda';
  src: url('assets/fonts/reyda-italic.otf') format('opentype');
  font-style: italic;
}
@font-face {
  font-family: 'Recoleta';
  src: url('assets/fonts/Recoleta/Recoleta Regular.woff2') format('woff2'),
       url('assets/fonts/Recoleta/Recoleta Regular.otf') format('opentype');
  font-weight: 400;
}
@font-face {
  font-family: 'Recoleta';
  src: url('assets/fonts/Recoleta/Recoleta Medium.woff2') format('woff2'),
       url('assets/fonts/Recoleta/Recoleta Medium.otf') format('opentype');
  font-weight: 500;
}
@font-face {
  font-family: 'Recoleta';
  src: url('assets/fonts/Recoleta/Recoleta Bold.woff2') format('woff2'),
       url('assets/fonts/Recoleta/Recoleta Bold.otf') format('opentype');
  font-weight: 700;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--hielo);
  color: var(--negro);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ─── HERO ─────────────────────────────────────────────── */

.hero {
  min-height: 100svh;
  background: var(--azul);
  color: var(--hielo);
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 1fr auto;
  padding: 2.5rem 3rem;
  gap: 0;
  position: relative;
  overflow: hidden;
}

/* Logo — esquina superior izquierda */
.hero__logo {
  grid-column: 1;
  grid-row: 1;
  width: clamp(160px, 22vw, 280px);
  align-self: start;
}

/* Ilustración — esquina superior derecha */
.hero__ilus {
  grid-column: 2;
  grid-row: 1 / 4;
  justify-self: end;
  align-self: center;
  width: clamp(220px, 38vw, 520px);
  opacity: 0.92;
  pointer-events: none;
}

/* Bloque de texto — columna izquierda, fila central */
.hero__texto {
  grid-column: 1;
  grid-row: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem 0 3rem;
  max-width: 52ch;
}

.hero__titulo {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  line-height: 1.05;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero__titulo em {
  font-style: italic;
  font-weight: 400;
  color: var(--hielo);
  padding: 0 0.15em;
  background-image: linear-gradient(var(--rojo), var(--rojo));
  background-repeat: no-repeat;
  background-size: 100% 72%;
  background-position: 0% 48%;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.hero__bajada {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.6;
  opacity: 0.8;
  max-width: 42ch;
  margin-bottom: 2.5rem;
}

/* CTA — fila inferior izquierda */
.hero__cta {
  grid-column: 1;
  grid-row: 3;
  align-self: end;
  padding-bottom: 0.5rem;
}

/* ─── BOTÓN ─────────────────────────────────────────────── */

.btn {
  display: inline-block;
  background: var(--rojo);
  color: var(--hielo);
  padding: 0.85rem 2.2rem;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: background 0.2s, transform 0.15s;
}
.btn:hover {
  background: #c50000;
  transform: translateY(-1px);
}

/* ─── FRASE ─────────────────────────────────────────────── */

.frase {
  background: var(--negro);
  color: var(--hielo);
  padding: 5rem 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.frase__texto {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1.2;
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  max-width: 22ch;
}

.frase__texto em {
  font-style: italic;
  font-weight: 400;
  color: var(--hielo);
  padding: 0 0.2em;
  background-image: linear-gradient(var(--rojo), var(--rojo));
  background-repeat: no-repeat;
  background-size: 100% 72%;
  background-position: 0% 48%;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* ─── SOBRE ─────────────────────────────────────────────── */

.sobre {
  background: var(--hielo);
  padding: 6rem 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.sobre__titulo {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--azul);
}

.sobre__cuerpo {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.sobre__parrafo {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.75;
  color: var(--negro);
}

.sobre__parrafo strong,
.hero__bajada strong,
.contacto__bajada strong {
  font-weight: 700;
}

/* ─── ILUSTRACIONES ─────────────────────────────────────── */

.ilustraciones {
  background: var(--azul);
  padding: 5rem 3rem;
  overflow: hidden;
}

.ilustraciones__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
  align-items: end;
}

.ilustraciones__grid img {
  width: 100%;
  max-width: 220px;
  justify-self: center;
  transition: transform 0.3s ease;
}

.ilustraciones__grid img:nth-child(even) {
  align-self: start;
  margin-top: 3rem;
}

.ilustraciones__grid img:hover {
  transform: translateY(-8px);
}

/* ─── DISCIPLINAS ────────────────────────────────────────── */

.disciplinas {
  background: var(--hielo);
  padding: 6rem 3rem;
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.disciplinas__titulo {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  color: var(--azul);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 3rem;
}

.disciplinas__lista {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  list-style: none;
}

.disciplinas__lista li {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: var(--negro);
  padding: 0.6rem 1.4rem 0.5rem;
  border: 2px solid var(--negro);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  transition: background 0.2s, color 0.2s;
  cursor: default;
}

.disciplinas__lista li:hover {
  background: var(--negro);
  color: var(--hielo);
}

.disciplinas__lista li a {
  color: inherit;
  text-decoration: none;
}

.disciplinas__lista li:has(a):hover {
  cursor: pointer;
}

/* ─── CONTACTO ───────────────────────────────────────────── */

.contacto {
  background: var(--rojo);
  color: var(--hielo);
  padding: 6rem 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2rem;
}

.contacto__titulo {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  max-width: 18ch;
}

.contacto__bajada {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 44ch;
  line-height: 1.6;
}

.contacto__form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 560px;
  text-align: left;
}

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

.contacto input,
.contacto textarea {
  padding: 0.85rem 1.1rem;
  border: 2px solid var(--hielo);
  background: transparent;
  color: var(--hielo);
  font-family: var(--font-body);
  font-size: 1rem;
  width: 100%;
}

.contacto textarea {
  resize: vertical;
  min-height: 110px;
}

.contacto input::placeholder,
.contacto textarea::placeholder {
  color: rgba(244, 239, 223, 0.55);
}

.contacto input:focus,
.contacto textarea:focus {
  outline: none;
  background: rgba(244, 239, 223, 0.1);
}

/* Disciplinas */
.contacto__disciplinas {
  border: 2px solid var(--hielo);
  padding: 1rem 1.1rem;
}

.contacto__legend {
  font-family: var(--font-body);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.65;
  margin-bottom: 0.75rem;
}

.contacto__checks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.contacto__check {
  display: inline-flex;
  align-items: center;
  gap: 0;
  cursor: pointer;
}

.contacto__check input[type="checkbox"] {
  display: none;
}

.contacto__check span {
  font-family: var(--font-display);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.8rem 0.3rem;
  border: 1.5px solid rgba(244, 239, 223, 0.5);
  color: rgba(244, 239, 223, 0.7);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.contacto__check input[type="checkbox"]:checked + span {
  background: var(--hielo);
  color: var(--rojo);
  border-color: var(--hielo);
}

.contacto__check:hover span {
  border-color: var(--hielo);
  color: var(--hielo);
}

/* Links dinámicos */
.contacto__links-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

#links-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contacto__link-fila {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.contacto__link-fila input {
  flex: 1;
}

.contacto__quitar {
  background: transparent;
  border: 2px solid rgba(244, 239, 223, 0.4);
  color: var(--hielo);
  font-size: 1.2rem;
  width: 2.5rem;
  height: 2.5rem;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, border-color 0.15s;
}

.contacto__quitar:hover {
  background: rgba(244, 239, 223, 0.15);
  border-color: var(--hielo);
}

.contacto__agregar {
  background: transparent;
  border: none;
  color: rgba(244, 239, 223, 0.65);
  font-family: var(--font-body);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0;
  text-align: left;
  letter-spacing: 0.02em;
  transition: color 0.15s;
}

.contacto__agregar:hover {
  color: var(--hielo);
}

.contacto .btn {
  background: var(--hielo);
  color: var(--rojo);
  font-size: 1rem;
  letter-spacing: 0.03em;
}

.contacto .btn:hover {
  background: var(--negro);
  color: var(--hielo);
  transform: translateY(-1px);
}

/* ─── FOOTER ─────────────────────────────────────────────── */

.footer {
  background: var(--negro);
  color: var(--hielo);
  padding: 2rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__logo {
  width: 120px;
  opacity: 0.7;
}

.footer__copy {
  font-size: 0.85rem;
  opacity: 0.5;
}

/* ─── PÁGINAS DE DISCIPLINA ──────────────────────────────── */

.nav-disciplina {
  background: var(--hielo);
  padding: 1.2rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--negro);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-disciplina__volver {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--negro);
  text-decoration: none;
  letter-spacing: 0.02em;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.nav-disciplina__volver:hover {
  opacity: 1;
}

.nav-disciplina__isotipo {
  width: 36px;
  opacity: 0.6;
}

.disciplina-header {
  background: var(--azul);
  color: var(--hielo);
  padding: 5rem 3rem 4rem;
}

.disciplina-header__titulo {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1;
  margin-bottom: 1.2rem;
}

.disciplina-header__bajada {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.6;
  opacity: 0.8;
  max-width: 52ch;
}

.escritores {
  background: var(--hielo);
  width: 100%;
  padding: 5rem 3rem 6rem;
}

.escritores__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.escritor {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.escritor__foto-wrap {
  background: #dedad0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  margin-bottom: 1rem;
}

.escritor__foto {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.escritor__foto-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.3;
}

.escritor__foto-placeholder svg {
  width: 40%;
}

.escritor__nombre {
  font-family: var(--font-display);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--negro);
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.escritor__rol {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--negro);
  opacity: 0.5;
  margin-bottom: 0.75rem;
}

.escritor__links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.escritor__link {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--negro);
  text-decoration: none;
  padding: 0.25rem 0.7rem;
  border: 1.5px solid rgba(33,33,33,0.4);
  letter-spacing: 0.02em;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.escritor__link:hover {
  background: var(--negro);
  color: var(--hielo);
  border-color: var(--negro);
}

.escritor--placeholder .escritor__nombre,
.escritor--placeholder .escritor__rol {
  background: rgba(33,33,33,0.12);
  color: transparent;
  border-radius: 2px;
}
.escritor--placeholder .escritor__nombre {
  width: 80%;
  height: 1em;
  margin-bottom: 0.4rem;
}
.escritor--placeholder .escritor__rol {
  width: 55%;
  height: 0.85em;
}

/* ─── RESPONSIVE ─────────────────────────────────────────── */

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto;
    padding: 2rem 1.5rem;
  }

  .hero__ilus {
    grid-column: 1;
    grid-row: 2;
    justify-self: center;
    width: clamp(180px, 70vw, 320px);
    margin: 2rem 0 0;
  }

  .hero__texto {
    grid-column: 1;
    grid-row: 3;
    padding: 2rem 0;
  }

  .hero__cta {
    grid-column: 1;
    grid-row: 4;
  }

  .sobre {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 4rem 1.5rem;
  }

  .ilustraciones__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ilustraciones__grid img:nth-child(even) {
    margin-top: 0;
  }

  .frase {
    padding: 4rem 1.5rem;
  }

  .disciplinas {
    padding: 4rem 1.5rem;
  }

  .contacto {
    padding: 4rem 1.5rem;
  }

  .footer {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
    padding: 2rem 1.5rem;
  }
}