/* ══════════════════════════════════════════════════════
   THE HIVE — Liquid Glass Design System
   Inspired by Apple's Liquid Glass (iOS 26)
   Gold accent + frosted glass aesthetics
   ══════════════════════════════════════════════════════ */

:root {
    --bg-color: #f0ece4;
    --bg-gradient: linear-gradient(145deg, #f5f0e8 0%, #e8e0d4 30%, #f0ece4 60%, #e4ddd2 100%);
    --text-color: #1a1a1a;
    --text-muted: #7a7570;
    --accent-gold: #c9a227;
    --accent-gold-light: rgba(201, 162, 39, 0.15);
    --accent-gold-glow: rgba(201, 162, 39, 0.25);
    --border-color: rgba(255, 255, 255, 0.45);
    --border-subtle: rgba(0, 0, 0, 0.06);
    --hover-bg: rgba(255, 255, 255, 0.35);
    --white: #ffffff;

    /* Glass tokens */
    --glass-bg: rgba(255, 255, 255, 0.55);
    --glass-bg-strong: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(255, 255, 255, 0.6);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
    --glass-shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.1), 0 2px 6px rgba(0, 0, 0, 0.06);
    --glass-blur: blur(20px) saturate(180%);
    --glass-blur-strong: blur(40px) saturate(200%);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-color);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Subtle animated background mesh */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 20% 50%, rgba(201, 162, 39, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(201, 162, 39, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(180, 140, 30, 0.03) 0%, transparent 50%);
    z-index: -1;
    animation: meshFloat 20s ease-in-out infinite;
}

@keyframes meshFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(2%, -1%) rotate(1deg); }
    66% { transform: translate(-1%, 2%) rotate(-1deg); }
}

/* ── Auth Page ── */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 440px;
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow),
                inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

/* ── Logo ── */
.logo {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 30px;
    letter-spacing: -1px;
}
.logo span { color: var(--accent-gold); }

/* ── 3-Column Layout ── */
.layout {
    display: grid;
    grid-template-columns: 280px minmax(600px, 1fr) 320px;
    gap: 20px;
    max-width: 1600px;
    width: 100%;
    padding: 0 20px;
    margin: 0 auto;
}

/* ── Left Sidebar ── */
.sidebar-left {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 20px 10px 20px 0;
    display: flex;
    flex-direction: column;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 14px 18px;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

.nav-item:hover {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-color: var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.nav-item.active {
    font-weight: 700;
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-color: var(--glass-border);
    box-shadow: var(--glass-shadow),
                inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.btn-post {
    margin-top: 20px;
    width: 100%;
    padding: 14px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--accent-gold), #d4af37, #e0c050);
    color: white;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--accent-gold-glow),
                inset 0 1px 0 rgba(255, 255, 255, 0.25);
    transition: var(--transition);
    letter-spacing: 0.3px;
}

.btn-post:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-gold-glow),
                inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-post:active {
    transform: translateY(0);
}

/* ── Center Feed ── */
.feed-container {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    min-height: 100vh;
    margin: 10px 0;
    box-shadow: var(--glass-shadow);
    overflow: hidden;
}

.feed-header {
    position: sticky;
    top: 0;
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    padding: 18px 22px;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 1.2rem;
    font-weight: 800;
    z-index: 10;
}

.composer {
    padding: 20px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.composer textarea {
    width: 100%;
    border: none;
    resize: none;
    font-size: 1.1rem;
    font-family: inherit;
    outline: none;
    min-height: 60px;
    background: transparent;
    color: var(--text-color);
}

.composer textarea::placeholder {
    color: var(--text-muted);
}

.composer-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    align-items: center;
}

/* ── Buttons ── */
.btn-small {
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    background: var(--text-color);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.2px;
}

.btn-small:hover {
    background: #000;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

.btn-small:active {
    transform: translateY(0);
}

.btn-large {
    width: 100%;
    padding: 14px;
    background: var(--text-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-large:hover {
    background: #000;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

/* ── Posts ── */
.post {
    padding: 20px;
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition);
}

.post:hover {
    background: rgba(255, 255, 255, 0.25);
}

.post-author {
    font-weight: 700;
    margin-bottom: 5px;
}

.post-date {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.post-content {
    font-size: 1.05rem;
    line-height: 1.55;
    margin-bottom: 15px;
}

.post-actions {
    display: flex;
    gap: 35px;
    color: var(--text-muted);
}

.action {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    transition: var(--transition);
    padding: 4px 8px;
    border-radius: 8px;
}

.action:hover {
    color: var(--accent-gold);
    background: var(--accent-gold-light);
}

/* ── Right Sidebar ── */
.sidebar-right {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 20px 0 20px 10px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-top: 30px;
}

.widget {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: var(--transition);
}

.widget:hover {
    box-shadow: var(--glass-shadow-hover);
}

.widget h3 {
    margin-bottom: 15px;
    font-weight: 800;
    font-size: 1rem;
}

.trend-item {
    margin-bottom: 14px;
    cursor: pointer;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.trend-item:last-child {
    margin-bottom: 0;
}

.trend-item:hover {
    background: rgba(255, 255, 255, 0.35);
}

.trend-item span {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.trend-item div {
    font-weight: 600;
    font-size: 0.95rem;
}

/* ── Forms ── */
.form-container {
    padding: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    outline: none;
    transition: var(--transition);
    color: var(--text-color);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-gold);
    background: rgba(255, 255, 255, 0.6);
    box-shadow: 0 0 0 3px var(--accent-gold-light),
                var(--glass-shadow);
}

#error-msg {
    color: #c0392b;
    font-size: 14px;
    text-align: center;
    margin-bottom: 10px;
    min-height: 20px;
}

/* ══════════════════════════════════════════════════════
   BREADCRUMB
   ══════════════════════════════════════════════════════ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.breadcrumb-item {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: var(--transition);
}

.breadcrumb-item:hover:not(.active) {
    color: var(--accent-gold);
}

.breadcrumb-item.active {
    color: var(--text-color);
    font-weight: 800;
}

.breadcrumb-sep {
    color: var(--text-muted);
    font-size: 1.1rem;
    user-select: none;
    opacity: 0.5;
}

/* ══════════════════════════════════════════════════════
   CATEGORIES GRID
   ══════════════════════════════════════════════════════ */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
    padding: 20px;
}

.category-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 22px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
    opacity: 0;
    transition: var(--transition);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glass-shadow-hover),
                0 0 0 1px var(--accent-gold-light);
    border-color: rgba(201, 162, 39, 0.3);
}

.category-card:hover::before {
    opacity: 1;
}

.category-icon {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.category-card-name {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.category-card-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ══════════════════════════════════════════════════════
   POST DETAIL & THREADS
   ══════════════════════════════════════════════════════ */
.post-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-color);
}

.thread-item {
    border-left: 3px solid transparent;
    transition: var(--transition);
}

.thread-item:hover {
    border-left-color: var(--accent-gold);
}

.post-detail {
    padding: 25px;
    border-bottom: 1px solid var(--border-subtle);
}

.post-detail-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 18px;
}

.post-detail-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--glass-border);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.post-detail-author {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.post-detail-author:hover {
    color: var(--accent-gold);
}

.post-detail-date {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.post-detail-title {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 14px;
    line-height: 1.3;
}

.post-detail-content {
    font-size: 1.05rem;
    line-height: 1.65;
    margin-bottom: 20px;
    white-space: pre-wrap;
}

.post-detail-actions {
    display: flex;
    gap: 25px;
    padding-top: 15px;
    border-top: 1px solid var(--border-subtle);
    color: var(--text-muted);
}

/* ══════════════════════════════════════════════════════
   COMMENTS
   ══════════════════════════════════════════════════════ */
.comments-section {
    padding: 0;
}

.comments-header {
    padding: 18px 25px;
    border-bottom: 1px solid var(--border-subtle);
}

.comments-header h3 {
    font-weight: 800;
    font-size: 1rem;
}

.comment-form {
    padding: 18px 25px;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.2);
}

.comment-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    outline: none;
    resize: vertical;
    transition: var(--transition);
    box-sizing: border-box;
    color: var(--text-color);
}

.comment-form textarea:focus {
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px var(--accent-gold-light);
}

.comment {
    display: flex;
    gap: 12px;
    padding: 16px 25px;
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition);
}

.comment:hover {
    background: rgba(255, 255, 255, 0.2);
}

.comment:last-child {
    border-bottom: none;
}

.comment-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 1px solid var(--glass-border);
}

.comment-body {
    flex: 1;
    min-width: 0;
}

.comment-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}

.comment-author {
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.comment-author:hover {
    color: var(--accent-gold);
}

.comment-date {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.comment-content {
    font-size: 0.93rem;
    line-height: 1.5;
    white-space: pre-wrap;
}

.no-comments {
    text-align: center;
    color: var(--text-muted);
    padding: 30px;
    font-size: 0.93rem;
}

/* ══════════════════════════════════════════════════════
   SIDEBAR CATEGORIES & SELECT
   ══════════════════════════════════════════════════════ */
.sidebar-cat-item {
    padding: 9px 12px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 600;
    transition: var(--transition);
    margin-bottom: 3px;
}

.sidebar-cat-item:hover {
    background: rgba(255, 255, 255, 0.4);
    color: var(--accent-gold);
}

.category-select {
    padding: 8px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    font-family: inherit;
    font-size: 0.88rem;
    color: var(--text-color);
    outline: none;
    cursor: pointer;
    transition: var(--transition);
}

.category-select:focus {
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px var(--accent-gold-light);
}