:root {
    --bg-dark: #020617;
    --glass-card: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --accent-blue: #3b82f6;
    --text-bright: #f8fafc;
    --text-dim: #94a3b8;
    --heart-red: #ef4444;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Базовые настройки */
* { 
    margin: 0; padding: 0; box-sizing: border-box; 
    -webkit-tap-highlight-color: transparent; 
}

body {
    background-color: var(--bg-dark);
    color: var(--text-dim);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    padding: 15px;
    overflow-x: hidden;
}

#canvas-stars { position: fixed; top: 0; left: 0; z-index: -1; }
.overlay { 
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; 
    background: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.1) 0%, transparent 70%); 
    z-index: -1; pointer-events: none;
}

.container { max-width: 900px; margin: 0 auto; width: 100%; }

/* Навигация */
.top-nav { margin-bottom: 20px; }
.btn-back {
    text-decoration: none; color: var(--text-bright); font-size: 0.8rem;
    padding: 8px 16px; background: var(--glass-card); border: 1px solid var(--glass-border);
    border-radius: 8px; transition: var(--transition); display: inline-block;
    backdrop-filter: blur(10px);
}
.btn-back:hover { background: rgba(255,255,255,0.1); transform: translateX(-3px); }

/* Шапка */
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 25px; gap: 15px; }
h1 { font-family: 'Orbitron', sans-serif; color: var(--text-bright); font-size: clamp(1.1rem, 4vw, 1.6rem); letter-spacing: 2px; }
.subtitle { font-size: 0.65rem; color: var(--accent-blue); font-weight: 700; text-transform: uppercase; }

.btn-publish {
    font-family: 'Orbitron', sans-serif; font-size: 0.7rem; font-weight: 700; color: #fff;
    padding: 10px 20px; background: linear-gradient(135deg, #2563eb, #3b82f6);
    border: none; border-radius: 8px; cursor: pointer;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4); transition: var(--transition);
}
.btn-publish:hover { transform: translateY(-2px); box-shadow: 0 0 25px rgba(59, 130, 246, 0.6); }

/* Поиск и фильтры */
.search-bar input {
    width: 100%; padding: 14px 20px; border-radius: 12px;
    background: var(--glass-card); border: 1px solid var(--glass-border);
    color: white; outline: none; margin-bottom: 15px; backdrop-filter: blur(10px);
}
.filters { display: flex; gap: 8px; margin-bottom: 20px; overflow-x: auto; padding-bottom: 10px; scrollbar-width: none; }
.filters::-webkit-scrollbar { display: none; }
.filter-tag { 
    white-space: nowrap; padding: 8px 18px; background: var(--glass-card); 
    border: 1px solid var(--glass-border); border-radius: 20px; font-size: 0.75rem; cursor: pointer;
}
.filter-tag.active { border-color: var(--accent-blue); background: rgba(59, 130, 246, 0.15); color: white; }

/* Карточка поста */
.post-card { 
    background: var(--glass-card); backdrop-filter: blur(20px); 
    border: 1px solid var(--glass-border); border-radius: 16px; 
    margin-bottom: 12px; display: grid; grid-template-rows: auto 0fr;
    transition: var(--transition); animation: slideUp 0.5s ease forwards; opacity: 0;
}
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.post-card.open { grid-template-rows: auto 1fr; border-color: rgba(59, 130, 246, 0.3); background: rgba(30, 41, 59, 0.5); }

.post-header { padding: 15px; display: flex; align-items: center; gap: 12px; cursor: pointer; }
.user-avatar { 
    width: 42px; height: 42px; border-radius: 10px; 
    background: linear-gradient(45deg, #1e293b, #3b82f6); 
    display: flex; align-items: center; justify-content: center; color: white; font-weight: bold; flex-shrink: 0; 
}
.post-info { flex-grow: 1; min-width: 0; }
.post-info h3 { font-size: 0.9rem; color: white; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.post-meta-top { display: flex; align-items: center; gap: 8px; margin-bottom: 2px; }
.category-label { font-size: 0.65rem; color: var(--accent-blue); font-weight: 700; text-transform: uppercase; }
.author-nickname { font-size: 0.65rem; color: var(--text-dim); opacity: 0.8; }

.like-btn { 
    background: rgba(255,255,255,0.03); border: 1px solid var(--glass-border); color: var(--text-dim); 
    padding: 6px 12px; border-radius: 8px; cursor: pointer; font-size: 0.8rem; display: flex; align-items: center; gap: 5px;
}
.like-btn.active { color: var(--heart-red); border-color: var(--heart-red); background: rgba(239, 68, 68, 0.05); }

/* Контент */
.post-content { overflow: hidden; }
.content-inner { padding: 15px; border-top: 1px solid var(--glass-border); }
.post-body-text { font-size: 0.85rem; line-height: 1.6; color: var(--text-dim); white-space: pre-wrap; }

.post-media { margin-top: 15px; display: flex; flex-direction: column; gap: 12px; }
.media-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }
.post-media img, .post-media video { width: 100%; border-radius: 10px; border: 1px solid var(--glass-border); object-fit: cover; }

/* Мобилки */
@media (max-width: 600px) {
    header { margin-bottom: 15px; }
    .btn-publish { padding: 8px 14px; font-size: 0.6rem; }
    .post-header { gap: 8px; padding: 12px; }
    .media-grid { grid-template-columns: 1fr; }
}