@import url("https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@400;700;800&display=swap");

:root {
  --font-sans-serif: "Nunito Sans", sans-serif;
  --color-background: #022C0D;
  --color-text-primary: #D4E9D9;
  --color-text-secondary: #87A38E;
  --color-accent: #50C878;
  --color-white: #ffffff;
  --color-input-bg: rgba(2, 44, 13, 0.8);
  --glass-background: rgba(21, 60, 31, 0.6);
  --glass-border: rgba(135, 163, 142, 0.2);
  --backdrop-blur: 10px;
  --radius: 12px;
}

/* --- Arrière-plan Animé --- */
body {
  font-family: var(--font-sans-serif);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.6;
  margin: 0;
  position: relative;
  overflow-x: hidden;
}

.background-shapes {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.background-shapes span {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent), transparent 60%);
  opacity: 0.1;
  transition: transform 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.background-shapes span:nth-child(1) { width: 200px; height: 200px; top: 10%; left: 5%; }
.background-shapes span:nth-child(2) { width: 300px; height: 300px; top: 20%; right: 10%; }
.background-shapes span:nth-child(3) { width: 150px; height: 150px; bottom: 15%; left: 20%; }
.background-shapes span:nth-child(4) { width: 400px; height: 400px; bottom: 5%; right: 25%; }
.background-shapes span:nth-child(5) { width: 250px; height: 250px; top: 50%; left: 50%; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px;
  position: relative;
  z-index: 1;
}

/* --- Effets pour éléments cliquables --- */
a {
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 700;
  transition: color 0.2s;
}
a:hover {
  color: var(--color-accent);
}

.button {
  font-family: var(--font-sans-serif);
  font-weight: 700;
  padding: 8px 16px;
  border: 2px solid;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-block;
  transition: all 0.2s;
}
.button-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}
.button-primary:hover {
  background-color: var(--color-white);
  color: var(--color-accent);
}
.button-secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: var(--glass-border);
}
.button-secondary:hover {
  border-color: var(--color-text-primary);
}

/* --- Structure principale --- */
.main-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  max-width: 1200px;
  margin: 32px auto;
  padding: 0 24px;
}

/* Ajustement si pas de sidebar (optionnel) */
.main-layout:only-child {
    grid-template-columns: 1fr;
}

.main-content {
  width: 100%;
}
.sidebar {
  width: 100%;
}
.widget {
  background: var(--glass-background);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--backdrop-blur));
  padding: 24px;
  margin-bottom: 24px;
}
.widget-title {
  font-weight: 800;
  font-size: 1.2rem;
  margin: 0 0 16px 0;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--glass-border);
}
.widget-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.9rem;
}
.widget-list li {
  margin-bottom: 12px;
}
.widget-list a {
  font-weight: 400;
}

/* --- Header & Footer --- */
.main-header {
  padding: 16px 24px;
  margin: 24px auto;
  max-width: 1200px;
  background: var(--glass-background);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--backdrop-blur));
}
.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-image {
  height: 32px;
  width: auto;
}
.logo span {
  font-weight: 800;
  font-size: 1.5rem;
}
.main-nav {
  display: flex;
  gap: 24px;
}
.user-actions {
  display: flex;
  gap: 12px;
}

.main-footer {
  margin: 40px auto;
  max-width: 1200px;
  padding: 24px;
  background: var(--glass-background);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--backdrop-blur));
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}
.footer-links a {
  color: var(--color-text-secondary);
  margin-left: 20px;
}

/* --- Breadcrumb & Banner --- */
.breadcrumb {
  max-width: 1200px;
  margin: 0 auto 32px auto;
  padding: 0 24px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
}
.breadcrumb-separator {
    margin: 0 8px;
    font-size: 0.8em;
    opacity: 0.6;
}
.breadcrumb-item {
    color: var(--color-text-secondary);
    font-weight: 600;
}
.breadcrumb-item:hover {
    color: var(--color-accent);
}

.hero-banner {
  max-width: 1200px;
  margin: 0 auto 32px auto;
  padding: 0 24px;
  border-radius: var(--radius);
  overflow: hidden;
  height: 150px; /* Augmenté un peu pour la visibilité */
}
.hero-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

/* --- LISTE DES FORUMS (HOMEPAGE ADAPTATION) --- */

/* Conteneur principal d'une catégorie (ex: Banque, Bourse) */
.forum-section {
    background: var(--glass-background);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    backdrop-filter: blur(var(--backdrop-blur));
    margin-bottom: 32px;
    overflow: hidden;
}

/* Le titre H2 qui sert de header à la section */
.forum-section > a {
    display: block;
    text-decoration: none;
}
.forum-header {
    margin: 0;
    padding: 16px 24px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--glass-border);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-text-primary);
    transition: background 0.2s;
}
.forum-section > a:hover .forum-header {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-accent);
}

/* Chaque ligne de sujet */
.forum-item {
    display: grid;
    /* Avatar | Sujet (extensible) | Auteur | Messages | Date */
    grid-template-columns: 48px 1fr 140px 100px 180px;
    gap: 16px;
    align-items: center;
    padding: 16px 24px;
    border-bottom: 1px solid var(--glass-border);
    transition: background-color 0.2s;
}

.forum-item:last-child {
    border-bottom: none;
}

.forum-item:hover {
    background-color: rgba(255,255,255,0.02);
}

.forum-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--glass-border);
}

.forum-subject {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.forum-author {
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
}
.forum-author a {
    color: var(--color-accent);
    font-weight: 600;
}

.forum-messages {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    text-align: center;
    background: var(--color-input-bg);
    padding: 4px 8px;
    border-radius: 20px;
    width: fit-content;
    margin: 0 auto;
}

.forum-last-message {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    text-align: right;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* --- THREAD VIEW (PAGE SUJET) --- */

.page-header {
  padding: 24px;
  margin-bottom: 32px;
  background: var(--glass-background);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--backdrop-blur));
}
.page-header h1 {
  font-size: 1.8rem;
  font-weight: 800;
  margin: 0;
  line-height: 1.3;
}

.post {
  padding: 0; /* Reset padding car on utilise flex layout */
  margin-bottom: 24px;
  background: var(--glass-background);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--backdrop-blur));
  display: flex;
  overflow: hidden; /* Pour que le sidebar auteur ne dépasse pas */
}

.post-author {
  flex-shrink: 0;
  width: 180px;
  background: rgba(0,0,0,0.1); /* Légère distinction visuelle */
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-right: 1px solid var(--glass-border);
}

.author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin-bottom: 12px;
  border: 3px solid var(--glass-border);
}

.author-name {
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 4px;
  word-break: break-word;
}

.author-meta {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-top: 8px;
  background: var(--color-input-bg);
  padding: 4px 10px;
  border-radius: 12px;
}

.post-body {
  flex-grow: 1;
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.post-meta {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--glass-border);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.post-content {
  font-size: 1rem;
  line-height: 1.7;
}

.reply-form {
  padding: 24px;
  margin-top: 32px;
  background: var(--glass-background);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--backdrop-blur));
}
.reply-form textarea {
  width: 100%;
  min-height: 120px;
  background-color: var(--color-input-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  color: var(--color-text-primary);
  padding: 16px;
  font-family: var(--font-sans-serif);
  font-size: 1rem;
  box-sizing: border-box;
  resize: vertical;
  outline: none;
}
.reply-form textarea:focus {
    border-color: var(--color-accent);
}
.reply-form .button-primary {
  margin-top: 16px;
}

/* --- USER PROFILE (PAGE UTILISATEUR) --- */

.profile-header {
  padding: 40px;
  margin: 0 auto 32px auto;
  max-width: 1200px;
  background: var(--glass-background);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--backdrop-blur));
  display: flex;
  align-items: center;
  gap: 32px;
}
.profile-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 4px solid var(--glass-border);
}
.profile-name {
  font-size: 2.5rem;
  font-weight: 800;
  margin: 0 0 8px 0;
  color: var(--color-accent);
}
.profile-since {
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.profile-content {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.profile-sidebar,
.profile-main {
  background: var(--glass-background);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--backdrop-blur));
  padding: 24px;
  height: fit-content;
}

.profile-sidebar h3.widget-title,
.profile-main h3.widget-title {
    margin-top: 0;
}

.info-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.info-list li {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--glass-border);
}
.info-list li:last-child {
  border-bottom: none;
}

/* Adaptation de la liste d'activité (DOM Structure: div > .comment-date + h4) */
.profile-main .widget-list > div {
    padding: 16px 0;
    border-bottom: 1px solid var(--glass-border);
    transition: transform 0.2s;
}
.profile-main .widget-list > div:last-child {
    border-bottom: none;
}
.profile-main .widget-list > div:hover {
    padding-left: 8px; /* Petit effet de mouvement au survol */
}

.comment-date {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
    font-weight: 600;
}

.comment-thread-title {
    margin: 0;
    font-size: 1.1rem;
    line-height: 1.4;
}
.comment-thread-title a {
    color: var(--color-text-primary);
    font-weight: 700;
}
.comment-thread-title a:hover {
    color: var(--color-accent);
}

/* --- Formulaires (Login/Register) --- */
.form-container {
  max-width: 400px;
  margin: 60px auto;
  background: var(--glass-background);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--backdrop-blur));
  padding: 40px;
}
.form-title {
  font-size: 2rem;
  font-weight: 800;
  text-align: center;
  margin: 0 0 32px 0;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
  font-size: 0.9rem;
}
.form-input {
  width: 100%;
  background-color: var(--color-input-bg);
  border: 1px solid var(--glass-border);
  color: var(--color-text-primary);
  padding: 12px;
  border-radius: 8px;
  box-sizing: border-box;
  outline: none;
  transition: border-color 0.2s;
}
.form-input:focus {
    border-color: var(--color-accent);
}
.form-container .button-primary {
  width: 100%;
  padding: 12px;
  margin-top: 8px;
  font-size: 1rem;
}
.form-switch-link {
  text-align: center;
  margin-top: 24px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* --- Responsive Adaptations --- */
@media (max-width: 900px) {
    .main-layout,
    .profile-content {
        grid-template-columns: 1fr;
    }
    
    .forum-item {
        /* Mobile layout pour les items forum */
        grid-template-columns: 50px 1fr;
        grid-template-areas: 
            "avatar subject"
            "avatar meta";
        gap: 8px;
    }
    .forum-avatar { grid-area: avatar; }
    .forum-subject { grid-area: subject; }
    
    .forum-author, 
    .forum-messages, 
    .forum-last-message {
        grid-area: meta;
        font-size: 0.8rem;
        display: inline-block;
    }
    
    .forum-author::after { content: " • "; color: var(--color-text-secondary); }
    .forum-messages::after { content: " • "; color: var(--color-text-secondary); }
    .forum-messages { background: none; padding: 0; color: var(--color-text-secondary); }
    .forum-last-message { text-align: left; }

    .post {
        flex-direction: column;
    }
    .post-author {
        width: 100%;
        flex-direction: row;
        border-right: none;
        border-bottom: 1px solid var(--glass-border);
        padding: 16px;
        justify-content: flex-start;
        gap: 16px;
        box-sizing: border-box;
    }
    .author-avatar {
        width: 50px;
        height: 50px;
        margin-bottom: 0;
    }
    .author-name { margin: 0; font-size: 1rem;}
}