:root {
  /* Couleurs de base */
  --bg-color: #0a192f;
  --surface-color: rgba(17, 34, 64, 0.85);
  --primary-color: #64ffda;
  --primary-color-hover: #36e0c0;
  --text-color: #ccd6f6;
  --text-color-light: #a8b2d1;
  --text-muted-color: #8892b0;
  --border-color: rgba(100, 255, 218, 0.1);
  --text-on-primary-color: #0a192f;
  
  /* Couleurs spécifiques aux composants */
  --footer-bg-color: #020c1b;
  --card-title-bg-color: rgba(10, 25, 47, 0.2);
  --topic-item-hover-bg-color: rgba(100, 255, 218, 0.05);
  --auth-input-bg-color: rgba(10, 25, 47, 0.2);
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  margin: 0;
}

a {
  color: var(--primary-color);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/*==============================
  ARRIÈRE-PLAN ANIMÉ
==============================*/
#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -1;
}

/*==============================
  EN-TÊTE
==============================*/
.site-header {
  background: var(--surface-color);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo-container {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--text-color);
}
.logo {
  width: 40px;
  margin-right: 15px;
}
.site-title {
  font-size: 22px;
  margin: 0;
}
.header-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 20px;
}
.header-nav a {
  color: var(--text-muted-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}
.header-nav a:hover,
.header-nav a.active {
  color: var(--text-color);
}

/*==============================
  STRUCTURE PRINCIPALE
==============================*/
.main-container {
  max-width: 1000px;
  margin: 30px auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.banner {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}
.banner img {
  width: 100%;
  display: block;
}

.breadcrumb {
  padding: 15px 20px;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-muted-color);
}
.breadcrumb a {
  color: var(--text-color);
}
.breadcrumb span {
  margin: 0 8px;
}

/*==============================
  CARTES & LISTES DE SUJETS
==============================*/
.category-card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  backdrop-filter: blur(8px);
}
.card-title {
  font-size: 18px;
  margin: 0;
  padding: 15px 20px;
  background-color: var(--card-title-bg-color);
  border-bottom: 1px solid var(--border-color);
}
.card-title a {
  color: var(--text-color);
  text-decoration: none;
}
.card-title a:hover {
  text-decoration: underline;
}

.topic-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.topic-item {
  padding: 15px 20px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.2s;
}
.topic-item:last-child {
  border-bottom: none;
}
.topic-item:hover {
  background-color: var(--topic-item-hover-bg-color);
}

.topic-title {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
}
.topic-title:hover {
  color: var(--primary-color);
}

.topic-meta,
.user-link {
  color: var(--text-muted-color);
  font-size: 13px;
  margin: 0;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.user-link {
  margin: 0 4px;
}
.meta-avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  margin-right: 6px;
}
.user-link strong {
  color: var(--text-color);
  font-weight: 600;
}

/*==============================
  PAGINATION
==============================*/
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 15px 0;
}
.pagination a {
  color: var(--text-color);
  padding: 8px 14px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: background-color 0.2s;
}
.pagination a:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}
.pagination a.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  pointer-events: none;
}

/*==============================
  PAGE DE THREAD
==============================*/
.thread-main-title {
  font-size: 24px;
  color: var(--text-color);
  margin: 0 0 20px 0;
  padding: 15px 20px;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.post-card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  backdrop-filter: blur(8px);
}
.post-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  border-bottom: 1px solid var(--border-color);
}
.post-author-info {
  display: flex;
  align-items: center;
  gap: 15px;
}
.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}
.author-details {
  display: flex;
  flex-direction: column;
}
.author-name {
  color: var(--text-color);
  font-weight: bold;
  text-decoration: none;
  font-size: 16px;
}
.post-date {
  font-size: 13px;
  color: var(--text-muted-color);
}
.post-actions {
  display: flex;
  gap: 10px;
}
.action-btn {
  color: var(--text-muted-color);
  font-size: 12px;
  font-weight: bold;
  text-decoration: none;
  padding: 6px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: all 0.2s ease;
}
.action-btn:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--text-on-primary-color);
}
.post-body {
  padding: 20px;
  line-height: 1.7;
  color: var(--text-color-light);
}
.post-body p {
  margin: 0 0 1em 0;
}
.post-body p:last-child {
  margin-bottom: 0;
}
.post-body a {
  color: var(--primary-color);
  font-weight: bold;
}
.reply-card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
}
.reply-form {
  padding: 20px;
}
.reply-textarea {
  width: 100%;
  min-height: 150px;
  background-color: var(--auth-input-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
  color: var(--text-color);
  font-size: 16px;
  font-family: inherit;
  resize: vertical;
  box-sizing: border-box;
}
.reply-actions {
  margin-top: 15px;
  text-align: right;
}
.reply-button {
  background-color: var(--primary-color);
  color: var(--text-on-primary-color);
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.2s;
}
.reply-button:hover {
  background-color: var(--primary-color-hover);
}

/*==============================
  PAGE DE PROFIL
==============================*/
.profile-header {
  display: flex;
  align-items: center;
  gap: 30px;
}
.profile-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
}
.profile-info h1 {
  margin: 0 0 5px 0;
  color: var(--text-color);
}
.profile-info p,
.stat-label {
  margin: 0;
  color: var(--text-muted-color);
  font-size: 14px;
}
.profile-stats {
  display: flex;
  gap: 30px;
  margin-top: 20px;
}
.stat-item {
  text-align: center;
}
.stat-value {
  font-size: 24px;
  font-weight: bold;
  color: var(--text-color);
}
.profile-section {
  margin-top: 30px;
}

/*==============================
  PAGES D'AUTHENTIFICATION
==============================*/
.auth-container {
  max-width: 400px;
  margin: 50px auto;
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.auth-form h2 {
  text-align: center;
}
.auth-input {
  background-color: var(--auth-input-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
  color: var(--text-color);
  font-size: 16px;
}
.auth-button {
  background-color: var(--primary-color);
  color: var(--text-on-primary-color);
  border: none;
  padding: 12px;
  border-radius: 6px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.2s;
}
.auth-button:hover {
  background-color: var(--primary-color-hover);
}
.auth-link {
  text-align: center;
  color: var(--text-muted-color);
}

/*==============================
  PIED DE PAGE
==============================*/
.site-footer {
  background-color: var(--footer-bg-color);
  border-top: 1px solid var(--border-color);
  padding: 30px 20px 0 20px;
  margin-top: 30px;
}
.footer-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 30px;
}
.footer-column h3 {
  color: var(--text-color);
  font-size: 16px;
  margin-top: 0;
  margin-bottom: 15px;
}
.footer-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-column li {
  margin-bottom: 10px;
}
.footer-column a {
  color: var(--text-muted-color);
  text-decoration: none;
}
.footer-column a:hover {
  color: var(--primary-color);
}
.footer-bottom {
  text-align: center;
  padding: 20px 0;
  color: var(--text-muted-color);
  font-size: 14px;
  border-top: 1px solid var(--border-color);
}


/* .forum-item {
    display: grid;
    grid-template-columns: 48px minmax(0, 3fr) minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1.5fr);
    gap: 16px;
    align-items: center;
    padding: 16px;
}

.forum-item:first-of-type {
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}
.forum-item:last-of-type {
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    margin-bottom: 0;
}
.forum-item:only-of-type {
    border-radius: 8px;
} */

.forum-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: block;
}

/* .forum-subject {
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    line-height: 1.4;
}
.forum-subject:hover {
    text-decoration: underline;
}

.forum-author,
.forum-messages,
.forum-last-message {
    font-size: 0.9rem;
}

.forum-author a {
    font-weight: 600;
    text-decoration: none;
}
.forum-author a:hover {
    text-decoration: underline;
}

.forum-messages {
    text-align: center;
}

.forum-last-message {
    text-align: right;
    white-space: nowrap;
} */