/* ============================================================
   HERMANDAD LITERARIA — style.css
   Estética: Gótico literario oscuro · Tinta y pergamino
   ============================================================ */

/* ── VARIABLES ── */
:root {
  --bg:           #0c0a0f;
  --surface:      #13101a;
  --surface2:     #1c1826;
  --surface3:     #231e30;
  --border:       #2c2640;
  --border-dim:   #1e1a2a;

  --gold:         #c8a84b;
  --gold-dim:     rgba(200, 168, 75, 0.12);
  --gold-glow:    rgba(200, 168, 75, 0.25);
  --gold-dark:    #8a6f28;

  --text:         #ece4d0;
  --text-dim:     #9a8f7c;
  --text-muted:   #574e42;

  --green:        #5fa86a;
  --blue:         #5c85b0;
  --gray:         #6b6275;

  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body:    'EB Garamond', Georgia, 'Times New Roman', serif;

  --radius:       3px;
  --shadow-book:  4px 6px 20px rgba(0, 0, 0, 0.7), 2px 2px 0 rgba(0,0,0,0.8);
  --transition:   0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Textura sutil de grano */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.3;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");
}

a {
  color: inherit;
  text-decoration: none;
}

strong {
  color: var(--text);
  font-weight: 600;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: relative;
  width: 100%;
  background: var(--surface);
}

.banner-image {
  width: 100%;
  height: 300px;
  overflow: hidden;
  position: relative;
}

.banner-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.banner-placeholder {
  width: 100%;
  height: 100%;
  background:
    linear-gradient(160deg,
      #1a0f2a 0%,
      #0d1b30 40%,
      #1a0d20 70%,
      #0a0a12 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px dashed var(--border);
}

.banner-placeholder span {
  font-family: var(--font-body);
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.88rem;
  letter-spacing: 0.06em;
}

/* Degradado sobre el banner para el título */
.header-overlay {
  position: relative;
  padding: 1.75rem 2.5rem 2rem;
  background: linear-gradient(to bottom, rgba(12,10,15,0) 0%, var(--bg) 100%);
  margin-top: -4rem;
}

.site-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 900;
  font-style: italic;
  letter-spacing: 0.03em;
  color: var(--gold);
  text-shadow:
    0 0 40px var(--gold-glow),
    0 2px 4px rgba(0,0,0,0.8);
  line-height: 1.1;
}

.site-tagline {
  font-family: var(--font-body);
  font-style: italic;
  color: var(--text-muted);
  font-size: 1rem;
  letter-spacing: 0.1em;
  margin-top: 0.3rem;
}

/* ============================================================
   PAGE LAYOUT  (sidebar-izq | main | sidebar-der)
   ============================================================ */
.page-layout {
  display: grid;
  grid-template-columns: 210px 1fr 190px;
  grid-template-areas: "left main right";
  gap: 0;
  max-width: 1440px;
  margin: 0 auto;
  align-items: start;
}

/* ============================================================
   SIDEBARS (common)
   ============================================================ */
.sidebar {
  border-right: 1px solid var(--border-dim);
}

.sidebar-right {
  border-right: none;
  border-left: 1px solid var(--border-dim);
}

/* El sticky wrapper dentro de cada sidebar */
.sidebar-inner {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 2rem 1.1rem 2rem 1.25rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.sidebar-inner::-webkit-scrollbar {
  width: 4px;
}
.sidebar-inner::-webkit-scrollbar-track {
  background: transparent;
}
.sidebar-inner::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

.sidebar-heading {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border);
}

/* ── Sidebar izquierdo: autores ── */
.sidebar-left {
  grid-area: left;
}

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

.author-list a {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 0.38rem 0.5rem;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  letter-spacing: 0.02em;
  font-family: var(--font-body);
  word-break: break-all;
}

.author-list a:hover {
  color: var(--gold);
  border-left-color: var(--gold);
  background: var(--gold-dim);
}

/* ── Sidebar derecho: redes ── */
.sidebar-right {
  grid-area: right;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.social-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 0.85rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  font-family: var(--font-body);
  transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

.social-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  fill: currentColor;
}

.social-btn:hover {
  transform: translateX(-3px);
}

/* WhatsApp */
.social-btn.whatsapp        { color: #6abf6a; }
.social-btn.whatsapp:hover  {
  background: rgba(106,191,106,0.08);
  border-color: #6abf6a;
  box-shadow: 0 0 16px rgba(106,191,106,0.15);
}

/* Discord */
.social-btn.discord        { color: #7b93e8; }
.social-btn.discord:hover  {
  background: rgba(123,147,232,0.08);
  border-color: #7b93e8;
  box-shadow: 0 0 16px rgba(123,147,232,0.15);
}

/* Google Forms */
.social-btn.forms        { color: #c07878; }
.social-btn.forms:hover  {
  background: rgba(192,120,120,0.08);
  border-color: #c07878;
  box-shadow: 0 0 16px rgba(192,120,120,0.15);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
  grid-area: main;
  padding: 2.5rem 2.25rem;
  min-width: 0;
}

/* ── Intro section ── */
.intro-section {
  margin-bottom: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-dim);
  position: relative;
}

/* Ornamento decorativo */
.intro-section::after {
  content: '✦ ✦ ✦';
  position: absolute;
  bottom: -0.7em;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg);
  padding: 0 1rem;
  color: var(--border);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
}

.intro-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.section-label {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 0.9rem;
  letter-spacing: 0.01em;
}

.intro-about p {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-bottom: 0.9rem;
}

/* Reglas */
.rules-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}

.rules-list li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: 0.88rem;
}

.rule-icon {
  color: var(--gold-dark);
  font-size: 0.65rem;
  margin-top: 0.35em;
  flex-shrink: 0;
}

.rules-list li > div {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.rules-list strong {
  font-size: 0.88rem;
  color: var(--text);
}

.rules-list p {
  color: var(--text-dim);
  font-size: 0.83rem;
  line-height: 1.45;
}

/* Dinámicas */
.dynamics-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold-dark);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.dynamics-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 0.6rem;
}

.dynamics-box p {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
}

.motto {
  font-style: italic;
  color: var(--gold) !important;
  margin-top: 0.5rem !important;
}

/* ============================================================
   BOOKS SECTION
   ============================================================ */
.books-section {}

.section-title {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.title-deco {
  font-size: 0.9rem;
  color: var(--gold-dark);
}

.title-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--border), transparent);
}

/* ── Grid de libros ── */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 2rem 1.25rem;
}

/* ── Tarjeta de libro ── */
.book-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  cursor: pointer;
  transition: transform var(--transition);
}

.book-card:hover {
  transform: translateY(-5px);
}

/* Portada */
.book-cover {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 3;
  border-radius: 2px 5px 5px 2px;
  overflow: hidden;
  background: var(--surface2);
  box-shadow: var(--shadow-book);

  /* Efecto spine del libro */
  border-left: 4px solid var(--border);
}

.book-cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  z-index: 1;
  transition: transform 0.35s ease;
  /* Ocultar texto alt en imágenes rotas */
  color: transparent;
  font-size: 0;
}

.book-card:hover .book-cover img {
  transform: scale(1.04);
}

/* Fallback cuando la imagen no carga */
.cover-fallback {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.9rem 0.7rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-style: italic;
  color: var(--text-dim);
  line-height: 1.4;
  background:
    linear-gradient(
      160deg,
      var(--surface3) 0%,
      var(--surface) 100%
    );
}

/* Overlay dorado al hacer hover */
.book-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background: var(--gold-glow);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.book-card:hover .book-cover::after {
  opacity: 1;
}

/* Info debajo de la portada */
.book-info {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.book-info h3 {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  transition: color var(--transition);
}

.book-card:hover .book-info h3 {
  color: var(--gold);
}

.book-author {
  font-size: 0.73rem;
  color: var(--text-muted);
  font-style: italic;
}

.book-genre {
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

/* Badges de estado */
.book-status {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.6rem;
  font-family: var(--font-body);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 0.18rem 0.45rem;
  border-radius: 2px;
  margin-top: 0.25rem;
}

.book-status.en-proceso {
  background: rgba(95, 168, 106, 0.12);
  color: var(--green);
  border: 1px solid rgba(95, 168, 106, 0.28);
}

.book-status.concluida {
  background: rgba(92, 133, 176, 0.12);
  color: var(--blue);
  border: 1px solid rgba(92, 133, 176, 0.28);
}

.book-status.en-creacion {
  background: rgba(107, 98, 117, 0.15);
  color: var(--gray);
  border: 1px solid rgba(107, 98, 117, 0.28);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  text-align: center;
  padding: 2.25rem 2rem;
  border-top: 1px solid var(--border-dim);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-style: italic;
  letter-spacing: 0.04em;
}

.footer-deco {
  color: var(--border);
  font-style: normal;
}

.footer-sep {
  margin: 0 0.5rem;
  color: var(--border);
}

/* ============================================================
   SCROLLBAR GLOBAL
   ============================================================ */
::-webkit-scrollbar        { width: 7px; height: 7px; }
::-webkit-scrollbar-track  { background: var(--bg); }
::-webkit-scrollbar-thumb  { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet: colapsar sidebar izquierdo */
@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: 1fr 180px;
    grid-template-areas: "main right";
  }
  .sidebar-left {
    display: none;
  }
}

/* Mobile: layout de una sola columna */
@media (max-width: 680px) {
  .page-layout {
    grid-template-columns: 1fr;
    grid-template-areas: "main";
  }

  .sidebar-left,
  .sidebar-right {
    display: none;
  }

  .intro-cols {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .header-overlay {
    padding: 1rem 1.25rem 1.5rem;
    margin-top: -3rem;
  }

  .banner-image {
    height: 200px;
  }

  .main-content {
    padding: 1.75rem 1.25rem;
  }

  .books-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 1.5rem 1rem;
  }
}