:root {
  /* -- Police -- */
  --font-family: "Poppins", sans-serif;

  /* -- Couleurs dynamiques -- */
  --color-background: #061414;
  --color-surface: #122929;
  --color-border: rgba(240, 199, 99, 0.2);
  --color-text: #e0e9e9;
  --color-text-muted: #859e9e;
  --color-primary: #f0c763;
  --color-primary-hover: #f5d88e;
  --color-header-bg: rgba(18, 41, 41, 0.95);
  --color-footer-bg: #0c1f1f;
  --color-input-bg: #030a0a;
  --color-aurora-1: #064e3b;
  --color-aurora-2: #115e59;
  --color-aurora-3: #047857;
  --color-aurora-4: #134e4a;
  
  /* -- Ombres et autres couleurs dérivées -- */
  --color-shadow: rgba(0, 0, 0, 0.2);
  --color-shadow-hover: rgba(0, 0, 0, 0.3);
}

/* ===== ANIMATION DE FOND "AURORE" ===== */
@keyframes aurora-gradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-5px); }
  100% { transform: translateY(0px); }
}

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

body {
  background-color: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-family);
  line-height: 1.6;
  font-weight: 400;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  
  /* Background Animation */
  background: linear-gradient(
    125deg,
    var(--color-aurora-1),
    var(--color-aurora-2),
    var(--color-aurora-3),
    var(--color-aurora-4)
  );
  background-size: 400% 400%;
  animation: aurora-gradient 20s ease infinite;
}

h1, h2, h3, h4, a {
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

a:hover {
  color: var(--color-primary-hover);
}

ul {
  list-style: none;
}

/* ===== STRUCTURE & CONTAINER ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  flex: 1;
}

/* Style Glassmorphism Amélioré */
.glass-card {
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  box-shadow: 0 8px 32px 0 var(--color-shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ===== HEADER ===== */
.header-content {
  padding: 1rem 2rem;
  position: sticky;
  top: 1rem;
  margin: 0 1rem 2rem 1rem;
  z-index: 100;
  background: rgba(20, 20, 20, 0.7); /* Fallback plus sombre */
  background: var(--color-header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--color-text);
  text-decoration: none;
}

.logo-container:hover {
    transform: scale(1.02);
}

.logo {
  height: 45px;
  width: auto;
  filter: drop-shadow(0 0 8px rgba(255,255,255,0.2));
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-nav > a:not(.nav-button) {
  color: var(--color-text);
  font-weight: 500;
  position: relative;
  opacity: 0.8;
}

.main-nav > a:not(.nav-button):hover {
  opacity: 1;
  color: var(--color-primary);
}

/* Soulignement animé */
.main-nav > a:not(.nav-button)::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--color-primary);
  transition: width 0.3s ease;
}

.main-nav > a:not(.nav-button):hover::after {
  width: 100%;
}

.nav-button {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  color: var(--color-background) !important;
  font-weight: 600;
  padding: 0.6rem 1.5rem;
  border-radius: 50px; /* Pill shape */
  box-shadow: 0 4px 15px rgba(var(--color-primary), 0.4);
  border: none;
}

.nav-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--color-primary), 0.6);
}

/* ===== BANNER / HERO SECTION ===== */
.banner {
  margin-top: 1rem;
  margin-bottom: 4rem;
  position: relative;
  overflow: hidden;
  padding: 0; /* Reset padding to let image fill */
  height: 350px; /* Hauteur fixe pour l'impact */
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  transition: transform 10s ease;
}

/* Effet de zoom lent sur l'image */
.banner:hover .banner-image {
  transform: scale(1.05);
}

/* Overlay sombre pour la lisibilité */
.banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.8));
  z-index: 2;
}

.banner-text {
  position: relative;
  z-index: 3;
  padding: 2rem;
  text-align: center;
  max-width: 800px;
  animation: float 6s ease-in-out infinite;
}

.banner h2 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
  color: white; /* Force white for contrast on image */
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
  line-height: 1.2;
}

.banner p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.2rem;
  font-weight: 300;
}

/* ===== FORUM SECTIONS (CATÉGORIES) ===== */
.categories-container {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  padding-bottom: 3rem;
}

.forum-section {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.forum-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Titre de la catégorie */
.forum-section > a {
    display: inline-block;
    margin-bottom: 1.5rem;
    text-decoration: none;
}

.forum-header {
  font-size: 1.8rem;
  color: var(--color-text);
  position: relative;
  padding-left: 1rem;
  border-left: 4px solid var(--color-primary);
  display: inline-block;
}

/* ===== FORUM ITEMS (LES CARTES) ===== */
/* On transforme la liste en grille de cartes modernes */
.forum-item {
  display: grid;
  /* Avatar | Titre/Auteur | Stats (Messages/Date) */
  grid-template-columns: 60px 1fr 200px; 
  align-items: center;
  gap: 1.5rem;
  padding: 1.2rem 1.5rem;
  background: var(--color-surface); /* Ou une variation légère */
  border: 1px solid var(--color-border);
  border-radius: 12px;
  margin-bottom: 1rem;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  overflow: hidden;
}

/* Hover effect sur toute la ligne */
.forum-item:hover {
  transform: translateY(-5px) scale(1.01);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-primary);
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
}

/* Petite barre colorée au survol */
.forum-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--color-primary);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.forum-item:hover::before {
  transform: scaleY(1);
}

.forum-avatar {
  width: 55px;
  height: 55px;
  border-radius: 12px; /* Squircle */
  object-fit: cover;
  border: 2px solid rgba(255,255,255,0.1);
  transition: transform 0.3s ease;
}

.forum-item:hover .forum-avatar {
  transform: rotate(5deg);
}

/* Conteneur implicite pour le sujet et l'auteur (flex column simulé par le grid) */
.forum-subject {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  display: block;
  margin-bottom: 0.3rem;
  line-height: 1.4;
}

.forum-author {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.forum-author a {
    color: var(--color-text-muted);
    font-weight: 600;
}
.forum-author a:hover {
    color: var(--color-primary);
}

/* Zone de droite (Stats et date) */
/* Le DOM met author, messages, last-message frères. 
   On va utiliser Grid area pour cleaner ça visuellement */

.forum-messages {
  grid-column: 3;
  grid-row: 1;
  text-align: right;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(var(--color-primary), 0.1); /* Background subtil */
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  justify-self: end;
  white-space: nowrap;
}

.forum-last-message {
  grid-column: 3;
  grid-row: 1;
  text-align: right;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 2.5rem; /* Push sous le badge message */
  justify-self: end;
}

/* ===== BREADCRUMBS (Fil d'ariane) ===== */
.breadcrumb-item {
  color: var(--color-text-muted);
  font-size: 1.9rem;
  font-weight: 600;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.breadcrumb-item:hover {
  opacity: 1;
  color: var(--color-primary);
}

.breadcrumb-separator {
  margin: 0 0.8rem;
  color: var(--color-text-muted);
  opacity: 0.5;
}

/* ===== THREAD VIEW (POSTS) ===== */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.post {
  display: flex;
  gap: 2rem;
  padding: 2.5rem;
  position: relative;
}

/* Badge "Author" */
.post-author {
  flex-shrink: 0;
  width: 180px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.05);
  padding-right: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.post-author .avatar {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  margin-bottom: 1rem;
  border: 4px solid var(--color-surface);
  box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

.post-author .author-link {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(90deg, var(--color-primary), var(--color-aurora-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent; /* Text gradient */
}

.post-body {
  flex-grow: 1;
}

.post-header {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  background: rgba(0,0,0,0.1);
  padding: 0.4rem 1rem;
  border-radius: 4px;
}

.post-content {
  font-size: 1.05rem;
  color: var(--color-text);
  line-height: 1.8;
}

.post-content p {
    margin-bottom: 1rem;
}

/* Formulaire réponse */
.reply-form {
  padding: 2.5rem;
  margin: 3rem 0;
}

.reply-form textarea {
  width: 100%;
  min-height: 180px;
  background: rgba(0,0,0,0.2);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text);
  padding: 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  margin-bottom: 1.5rem;
  transition: all 0.3s;
}

.reply-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: rgba(0,0,0,0.3);
}

.action-button {
  background: var(--color-primary);
  color: var(--color-background);
  font-weight: 700;
  padding: 1rem 2rem;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  box-shadow: 0 4px 20px rgba(var(--color-primary), 0.3);
  transition: all 0.3s ease;
}

.action-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(var(--color-primary), 0.5);
}

/* ===== PROFIL UTILISATEUR ===== */
.profile-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2.5rem;
  margin-top: 3rem;
  margin-bottom: 3rem;
}

.profile-sidebar .glass-card {
  padding: 2.5rem;
  text-align: center;
  position: sticky;
  top: 120px;
}

.profile-avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 4px solid var(--color-primary);
  padding: 4px;
  background: transparent;
  margin-bottom: 1.5rem;
}

.profile-username {
  font-size: 2rem;
  margin-bottom: 2rem;
  background: linear-gradient(135deg, var(--color-text), var(--color-text-muted));
  -webkit-background-clip: text;
  background-clip: text;
}

.profile-stats {
  background: rgba(0,0,0,0.15);
  padding: 1.5rem;
  border-radius: 12px;
  text-align: left;
}

.profile-stats p {
  display: flex;
  justify-content: space-between;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.profile-stats p:last-child {
  border-bottom: none;
}

/* Activité */
.profile-main h2 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 1rem;
}

.activity-list > div {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  transition: transform 0.3s;
  position: relative;
  overflow: hidden;
}

.activity-list > div::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: var(--color-border);
}

.activity-list > div:hover {
  transform: translateX(10px);
  border-color: var(--color-primary);
}

.activity-list > div:hover::after {
    background: var(--color-primary);
}

.comment-date {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.comment-thread-title {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.comment-thread-title a {
    color: var(--color-text);
}

.comment {
  font-style: italic;
  color: var(--color-text-muted);
  background: rgba(0,0,0,0.1);
  padding: 1rem;
  border-radius: 8px;
}

/* ===== FOOTER ===== */
.footer {
  margin-top: auto;
  background-color: var(--color-footer-bg);
  border-top: 1px solid var(--color-border);
  padding-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer-column h4 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.footer-column p {
  color: var(--color-text-muted);
  max-width: 300px;
}

.footer-column ul li {
  margin-bottom: 0.8rem;
}

.footer-column ul a {
  color: var(--color-text-muted);
  position: relative;
  padding-left: 0;
  transition: all 0.3s;
}

.footer-column ul a:hover {
  color: var(--color-primary);
  padding-left: 10px;
}

.footer-bottom {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .forum-item {
    grid-template-columns: 1fr auto; /* Layout simplifié */
    grid-template-rows: auto auto auto;
    gap: 0.5rem;
  }
  
  .forum-avatar {
    grid-row: 1;
    grid-column: 1;
  }
  
  .forum-subject {
    grid-row: 2;
    grid-column: 1 / -1;
  }
  
  .forum-author {
    grid-row: 1;
    grid-column: 2;
    justify-self: end;
  }
  
  .forum-messages, .forum-last-message {
    grid-row: 3;
    grid-column: 1 / -1;
    justify-self: start;
    text-align: left;
    margin-top: 0.5rem;
  }
  
  .forum-messages { display: inline-block; margin-right: 1rem; }
  .forum-last-message { display: inline-block; }
  
  .post {
    flex-direction: column;
    padding: 1.5rem;
  }
  
  .post-author {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
    padding-right: 0;
    margin-bottom: 1rem;
    flex-direction: row;
    justify-content: flex-start;
    gap: 1rem;
  }
  
  .post-author .avatar {
      width: 60px;
      height: 60px;
      margin-bottom: 0;
  }
  
  .banner h2 { font-size: 2rem; }
  .profile-grid { grid-template-columns: 1fr; }
  .footer-content { grid-template-columns: 1fr; }
}