/* ============================================================
   VALHALLA OTAKU — Styles page d'accueil vidéo (Manga Edition)
   ============================================================ */

/* VIDÉO DE FOND */
.video-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  overflow: hidden;
}

.video-background video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(80%) contrast(120%); /* Effet plus dramatique/manga */
}

.video-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 10, 12, 0.85); /* Plus sombre pour faire ressortir l'encre */
  background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1.3px);
  background-size: 6px 6px;
  z-index: -1;
}

/* OVERLAY DE BIENVENUE */
.welcome-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.welcome-overlay.hidden {
  opacity: 0;
  visibility: hidden;
}

/* PANNEAU CENTRAL — Case de Manga */
.welcome-box {
  text-align: center;
  max-width: 650px;
  padding: 3rem 2.5rem;
  background: var(--ash);
  border: 4px solid var(--ink-line);
  border-radius: 0;
  box-shadow: 10px 10px 0 var(--ink-line);
  position: relative;
  overflow: hidden;
}

.welcome-box::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-conic-gradient(var(--dot-color) 0deg 2deg, transparent 2deg 10deg);
  opacity: 0.3;
}

.welcome-rune {
  font-family: var(--font-accent);
  font-size: 0.8rem;
  letter-spacing: 0.35em;
  color: var(--dust);
  margin-bottom: 1rem;
  position: relative;
}

.welcome-title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 0 var(--ink-line), -1px -1px 0 var(--ink-line);
  position: relative;
}

.welcome-quote {
  font-family: var(--font-caption);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--parchment);
  line-height: 1.8;
  margin-bottom: 2rem;
  position: relative;
  padding: 0 1rem;
}

.welcome-divider {
  width: 80px;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--ink-line) 0 6px, transparent 6px 10px);
  margin: 0 auto 2rem;
  position: relative;
}

.welcome-btn {
  font-size: 0.9rem;
  padding: 0.85rem 2.5rem;
  cursor: pointer;
  position: relative;
}

.welcome-hint {
  font-family: var(--font-accent);
  font-size: 0.7rem;
  color: var(--fade);
  margin-top: 2rem;
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* MENU PRINCIPAL */
.main-menu {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.main-menu.hidden {
  display: none;
}

.landing-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 280px));
  gap: 1.5rem;
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  justify-content: center;
}

.nav-card {
  background: var(--ash);
  border: 3px solid var(--ink-line);
  border-radius: 0;
  padding: 1.5rem 1rem;
  text-align: center;
  transition: all 0.25s ease;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 6px 6px 0 var(--ink-line);
  position: relative;
  overflow: hidden;
}

.nav-card::after {
  content: "";
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,0.02) 10px, rgba(255,255,255,0.02) 20px);
  pointer-events: none;
}

.nav-card:hover {
  transform: translate(-2px, -2px);
  border-color: var(--gold);
  background: var(--hover-bg);
  box-shadow: 8px 8px 0 var(--ink-line);
  text-decoration: none;
}

.nav-card:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink-line);
}

.nav-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}

.nav-label {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gold);
  display: block;
  margin-bottom: 0.25rem;
  text-shadow: 1px 1px 0 var(--ink-line);
}

.nav-desc {
  font-family: var(--font-caption);
  font-size: 0.85rem;
  color: var(--dust);
  font-style: italic;
}

.landing-footer {
  margin-top: 4rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fade);
  background: var(--stone);
  border: 2px solid var(--ink-line);
  padding: 1rem;
  border-radius: 0;
  box-shadow: 3px 3px 0 var(--ink-line);
}

/* RESPONSIVE */
@media (max-width: 640px) {
  .welcome-box { padding: 2rem 1.5rem; border-width: 3px; box-shadow: 6px 6px 0 var(--ink-line); }
  .landing-nav { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .nav-card { padding: 1rem 0.75rem; border-width: 2px; box-shadow: 4px 4px 0 var(--ink-line); }
  .nav-icon { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .landing-nav { grid-template-columns: 1fr; }
}

/* ============================================================
   THÈME CLAIR (Édition Papier Imprimé)
   ============================================================ */

html[data-theme="light"] .video-background video { filter: grayscale(100%) brightness(1.2) contrast(1.1); }
html[data-theme="light"] .video-overlay { background: rgba(247, 243, 232, 0.85); background-image: radial-gradient(rgba(0, 0, 0, 0.1) 1px, transparent 1.3px); }
html[data-theme="light"] .welcome-box { background: var(--ash); border-color: var(--ink-line); box-shadow: 10px 10px 0 var(--ink-line); }
html[data-theme="light"] .welcome-title { text-shadow: none; color: var(--gold); }
html[data-theme="light"] .nav-card { background: var(--ash); border-color: var(--ink-line); box-shadow: 6px 6px 0 var(--ink-line); }
html[data-theme="light"] .nav-card:hover { background: var(--hover-bg); box-shadow: 8px 8px 0 var(--ink-line); }
html[data-theme="light"] .nav-label { text-shadow: none; }
html[data-theme="light"] .landing-footer { background: var(--ash); border-color: var(--ink-line); box-shadow: 3px 3px 0 var(--ink-line); }