:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f7f9fa;
    --bg-tertiary: #eff3f4;
    --bg-hover: rgba(0,0,0,0.03);
    --text-primary: #0f1419;
    --text-secondary: #536471;
    --text-muted: #71767b;
    --border: #eff3f4;
    --border-focus: #1d9bf0;
    --accent: #1d9bf0;
    --accent-hover: #1a8cd8;
    --danger: #f4212e;
    --danger-hover: #dc1d28;
    --success: #00ba7c;
    --warning: #ffad1f;
    --card-bg: #ffffff;
    --nav-bg: rgba(255,255,255,0.85);
    --shadow: 0 0 15px rgba(101,119,134,0.2);
    --radius: 16px;
    --radius-sm: 12px;
    --transition: 0.2s ease;
}

[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #16181c;
    --bg-tertiary: #202327;
    --bg-hover: rgba(255,255,255,0.03);
    --text-primary: #e7e9ea;
    --text-secondary: #71767b;
    --text-muted: #536471;
    --border: #2f3336;
    --border-focus: #1d9bf0;
    --card-bg: #16181c;
    --nav-bg: rgba(0,0,0,0.65);
    --shadow: 0 0 15px rgba(255,255,255,0.1);
}

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

html {
    font-size: 15px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    padding-bottom: 60px;
}

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

img { max-width: 100%; height: auto; }

.hidden { display: none !important; }

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 16px;
}

.page-title {
    font-size: 1.3rem;
    font-weight: 800;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 53px;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    z-index: 100;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.2;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-outline { background: transparent; color: var(--text-primary); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--bg-hover); border-color: var(--border); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-sm { padding: 4px 12px; font-size: 0.8rem; }
.btn-block { width: 100%; }

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin: 12px 16px;
    font-size: 0.9rem;
}
.alert-error { background: rgba(244,33,46,0.1); color: var(--danger); border: 1px solid rgba(244,33,46,0.2); }
.alert-success { background: rgba(0,186,124,0.1); color: var(--success); border: 1px solid rgba(0,186,124,0.2); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 4px; font-size: 0.9rem; }
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 2px rgba(29,155,240,0.2);
}
.input-prefix {
    display: flex;
    align-items: center;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.input-prefix span {
    padding: 12px;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    font-weight: 600;
}
.input-prefix input { border: none !important; box-shadow: none !important; }

.checkbox-group { display: flex; flex-direction: column; gap: 8px; }
.checkbox-label { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 0.95rem; }
.checkbox-label input { width: 18px; height: 18px; accent-color: var(--accent); }

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 700;
    background: var(--accent);
    color: #fff;
}
.badge-author { background: var(--success); }
.badge-admin { background: #794bc4; }
.badge-mobile { position: absolute; top: 2px; right: -4px; font-size: 0.6rem; min-width: 16px; text-align: center; }

/* Top Navigation */
.top-nav {
    position: sticky;
    top: 0;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 200;
}
.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0 16px;
    height: 53px;
    gap: 16px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--text-primary);
    text-decoration: none;
    flex-shrink: 0;
}
.logo-icon { font-size: 1.4rem; }
.nav-search { flex: 1; max-width: 350px; }
.search-form { position: relative; }
.search-input {
    width: 100%;
    padding: 8px 12px 8px 36px;
    border-radius: 9999px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}
.search-input:focus { border-color: var(--border-focus); background: var(--bg-primary); }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 9999px;
    color: var(--text-primary);
    transition: var(--transition);
    position: relative;
}
.nav-link:hover { background: var(--bg-tertiary); text-decoration: none; }
.nav-user { position: relative; margin-left: 8px; }
.nav-user-btn {
    width: 32px;
    height: 32px;
    border-radius: 9999px;
    overflow: hidden;
    border: none;
    cursor: pointer;
    background: transparent;
}
.nav-avatar { width: 100%; height: 100%; object-fit: cover; }

/* Dropdown */
.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 180px;
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 4px 0;
    display: none;
    z-index: 300;
}
.dropdown-menu.show { display: block; }
.dropdown-item {
    display: block;
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition);
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
}
.dropdown-item:hover { background: var(--bg-hover); text-decoration: none; }
.text-danger { color: var(--danger); }

/* Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border);
    z-index: 200;
    padding: 8px 0;
    padding-bottom: env(safe-area-inset-bottom, 8px);
}
.mobile-nav-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    color: var(--text-primary);
    position: relative;
}
.mobile-nav-item.active { color: var(--accent); }
.mobile-nav-avatar { width: 24px; height: 24px; border-radius: 9999px; object-fit: cover; }
.mobile-nav-user { position: relative; }
.mobile-user-menu {
    display: none;
    position: absolute;
    bottom: 40px;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    min-width: 180px;
    z-index: 300;
    overflow: hidden;
}
.mobile-user-menu.show { display: block; }
.mobile-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
}
.mobile-menu-item:hover { background: var(--bg-secondary); }
.mobile-menu-danger { color: #ef4444; }

/* Feed Tabs */
.feed-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 53px;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    z-index: 99;
}
.feed-tab {
    flex: 1;
    text-align: center;
    padding: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}
.feed-tab:hover { background: var(--bg-hover); text-decoration: none; }
.feed-tab.active { color: var(--text-primary); border-bottom-color: var(--accent); }

/* Compose Box */
.compose-box {
    display: flex;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}
.compose-avatar img { width: 40px; height: 40px; border-radius: 9999px; object-fit: cover; }
.compose-form { flex: 1; }
.compose-input {
    width: 100%;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-family: inherit;
    resize: none;
    outline: none;
    min-height: 40px;
}
.compose-media { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.compose-footer { display: flex; justify-content: space-between; align-items: center; padding-top: 10px; border-top: 1px solid var(--border); margin-top: 4px; }
.compose-actions { display: flex; gap: 4px; }
.compose-action {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 9999px;
    color: var(--accent);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: transparent;
}
.compose-action:hover { background: rgba(29,155,240,0.1); }
.compose-submit { display: flex; align-items: center; gap: 12px; }
.char-count { color: var(--text-muted); font-size: 0.8rem; font-weight: 600; }

/* Post */
.post {
    display: flex;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    gap: 10px;
    transition: var(--transition);
}
.post:hover { background: var(--bg-hover); }
.post-avatar img { width: 40px; height: 40px; border-radius: 9999px; object-fit: cover; }
.post-body { flex: 1; min-width: 0; text-align: left !important; }
.post-header { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.post-author { display: flex; align-items: center; gap: 4px; font-weight: 700; color: var(--text-primary); text-decoration: none; }
.post-author:hover { text-decoration: none; }
.display-name { font-weight: 700; }
.verified-badge { vertical-align: middle; margin-left: 2px; flex-shrink: 0; }

/* Profile roles */
.profile-roles {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}
.role-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}
.role-icon { font-size: 0.9rem; }

/* Role selection grid */
.roles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 8px;
}
.role-select-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    position: relative;
}
.role-select-item:hover { border-color: var(--accent); }
.role-select-item.selected { border-color: var(--accent); background: rgba(29,155,240,0.05); }
.role-select-item input { display: none; }
.role-select-icon { font-size: 1.2rem; }
.role-select-label { font-weight: 600; }
.role-select-check {
    position: absolute;
    top: 4px;
    right: 6px;
    width: 18px;
    height: 18px;
    border-radius: 9999px;
    background: var(--accent);
    color: #fff;
    font-size: 10px;
    display: none;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}
.role-select-item.selected .role-select-check { display: flex; }
.username { color: var(--text-secondary); font-weight: 400; }
.post-time { color: var(--text-muted); font-size: 0.85rem; }
.post-edited { color: var(--text-muted); font-size: 0.8rem; font-style: italic; }
.post-content { margin-top: 2px; line-height: 1.4; word-wrap: break-word; white-space: pre-line; text-align: left !important; font-size: 0.95rem; }
.post-content .hashtag { color: var(--accent); font-weight: 600; }
.post-content .mention { color: var(--accent); font-weight: 600; }
.post-content-link { color: inherit; text-decoration: none; display: block; text-align: left !important; }
.post-content-link:hover { text-decoration: none; }
.post-content-link:visited { color: inherit; }
.post-content-link .post-content .hashtag,
.post-content-link .post-content .mention { color: var(--accent); }
.post-content-link .post-content .hashtag:hover,
.post-content-link .post-content .mention:hover { text-decoration: underline; }
.reply-link { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 4px; display: block; }

/* Post Images */
.post-images {
    display: grid;
    gap: 4px;
    margin-top: 12px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}
.post-images-1 { grid-template-columns: 1fr; }
.post-images-2 { grid-template-columns: 1fr 1fr; }
.post-images-3 { grid-template-columns: 1fr 1fr; }
.post-images-3 .post-image-item:first-child { grid-row: 1/3; }
.post-images-4 { grid-template-columns: 1fr 1fr; }
.post-image-item { aspect-ratio: 16/10; overflow: hidden; cursor: pointer; }
.post-images-3 .post-image-item:first-child { aspect-ratio: auto; }
.post-image { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.post-image:hover { opacity: 0.9; }

/* Post Video */
.post-video {
    position: relative;
    margin-top: 12px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    cursor: pointer;
}
.video-player { width: 100%; display: block; background: #000; }
.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.75);
    color: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Link Preview */
.link-preview {
    display: flex;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-top: 12px;
    color: var(--text-primary);
    transition: var(--transition);
}
.link-preview:hover { background: var(--bg-hover); text-decoration: none; }
.link-preview-image { width: 130px; flex-shrink: 0; }
.link-preview-image img { width: 100%; height: 100%; object-fit: cover; }
.link-preview-body { padding: 10px 12px; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.link-preview-domain { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; }
.link-preview-title { font-weight: 600; font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.link-preview-desc { font-size: 0.8rem; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Post Location */
.post-location {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.post-location a { color: var(--accent); }

/* Post Actions */
.post-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 12px;
    max-width: 400px;
}
.post-action {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    border: none;
    background: transparent;
    padding: 4px 8px;
    border-radius: 9999px;
    transition: var(--transition);
}
.post-action:hover { text-decoration: none; }
.reply-action:hover { color: var(--accent); background: rgba(29,155,240,0.1); }
.repost-action:hover, .repost-action.active { color: var(--success); background: rgba(0,186,124,0.1); }
.like-action:hover, .like-action.active { color: var(--danger); background: rgba(244,33,46,0.1); }
.bookmark-action:hover, .bookmark-action.active { color: var(--accent); background: rgba(29,155,240,0.1); }

/* Post Menu */
.post-menu { margin-left: auto; position: relative; }
.post-menu-btn {
    width: 32px;
    height: 32px;
    border-radius: 9999px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}
.post-menu-btn:hover { background: var(--bg-tertiary); }
.post-dropdown { right: 0; top: auto; }

/* Profile */
.profile-header { position: relative; }
.profile-cover {
    height: 200px;
    background: var(--bg-tertiary);
    overflow: visible;
}
.profile-cover img { width: 100%; height: 100%; object-fit: cover; }
.profile-info { padding: 16px 16px 16px; position: relative; }
.profile-avatar-wrap { position: absolute; top: -160px; left: 16px; transform: none; }
.profile-avatar {
    width: 134px;
    height: 134px;
    border-radius: 9999px;
    border: 4px solid var(--bg-primary);
    object-fit: cover;
    background: var(--bg-primary);
}
.profile-actions { display: flex; justify-content: flex-end; gap: 8px; margin-bottom: 20px; }
.profile-name { font-size: 1.3rem; font-weight: 800; display: flex; align-items: center; gap: 6px; }
.profile-username { color: var(--text-secondary); font-size: 0.9rem; }
.profile-bio { margin-top: 12px; line-height: 1.5; }
.profile-meta {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    color: var(--text-muted);
    font-size: 0.9rem;
    flex-wrap: wrap;
}
.profile-meta span { display: flex; align-items: center; gap: 4px; }
.profile-stats { display: flex; gap: 20px; margin-top: 12px; }
.stat { color: var(--text-secondary); font-size: 0.9rem; }
.stat:hover { text-decoration: underline; }
.stat strong { color: var(--text-primary); font-weight: 700; }

.profile-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
}
.profile-tab {
    flex: 1;
    text-align: center;
    padding: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}
.profile-tab:hover { background: var(--bg-hover); text-decoration: none; }
.profile-tab.active { color: var(--text-primary); border-bottom-color: var(--accent); }

/* Users List */
.users-list { padding: 0; }
.user-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}
.user-item-avatar img { width: 40px; height: 40px; border-radius: 9999px; object-fit: cover; }
.user-item-info { flex: 1; min-width: 0; }
.user-item-name { font-weight: 700; color: var(--text-primary); display: flex; align-items: center; gap: 4px; }
.user-item-username { color: var(--text-secondary); font-size: 0.85rem; }
.user-item-bio { margin-top: 4px; font-size: 0.9rem; color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Post Detail */
.post-detail-container { padding-top: 0; }
.post-detail-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 53px;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    z-index: 100;
}
.btn-back {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 9999px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
}
.btn-back:hover { background: var(--bg-tertiary); }
.post-actions-detail {
    display: flex;
    gap: 20px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.post-actions-detail span strong { color: var(--text-primary); }

.reply-form {
    display: flex;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}

/* Notifications */
.notifications-list { padding: 0; }
.notification-item {
    display: flex;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
    color: var(--text-primary);
    transition: var(--transition);
}
.notification-item:hover { background: var(--bg-hover); text-decoration: none; }
.notification-item.unread { background: rgba(29,155,240,0.04); }
.notification-avatar img, .notification-avatar .notification-icon {
    width: 40px;
    height: 40px;
    border-radius: 9999px;
    object-fit: cover;
    display: flex;
    align-items: center;
    justify-content: center;
}
.notification-body { flex: 1; }
.notification-body p { font-size: 0.95rem; }
.notification-preview { color: var(--text-secondary); font-size: 0.9rem; margin-top: 4px; }
.notification-time { color: var(--text-muted); font-size: 0.8rem; }

/* Messages */
.messages-container {
    display: flex;
    max-width: 1100px;
    margin: 0 auto;
    height: calc(100vh - 53px);
}
.messages-sidebar {
    width: 320px;
    border-right: 1px solid var(--border);
    overflow-y: auto;
    flex-shrink: 0;
}
.messages-header { padding: 16px; border-bottom: 1px solid var(--border); }
.messages-header h2 { font-size: 1.2rem; font-weight: 800; }
.conversations-list { overflow-y: auto; }
.conversation-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    gap: 12px;
    color: var(--text-primary);
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
}
.conversation-item:hover { background: var(--bg-hover); text-decoration: none; }
.conversation-item.active { background: var(--bg-tertiary); }
.conversation-avatar { width: 48px; height: 48px; border-radius: 9999px; object-fit: cover; }
.conversation-info { flex: 1; min-width: 0; }
.conversation-name { font-weight: 600; font-size: 0.95rem; }
.conversation-preview { color: var(--text-secondary); font-size: 0.85rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.chat-area { flex: 1; display: flex; flex-direction: column; }
.chat-header { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.chat-user { display: flex; align-items: center; gap: 8px; color: var(--text-primary); text-decoration: none; }
.chat-user:hover { text-decoration: none; }
.chat-avatar { width: 32px; height: 32px; border-radius: 9999px; object-fit: cover; }
.chat-name { font-weight: 700; }
.chat-username { color: var(--text-secondary); font-size: 0.85rem; }

.chat-messages { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.message { display: flex; gap: 8px; max-width: 80%; }
.message.sent { align-self: flex-end; flex-direction: row-reverse; }
.message.received { align-self: flex-start; }
.message-avatar { width: 28px; height: 28px; border-radius: 9999px; object-fit: cover; flex-shrink: 0; }
.message-bubble {
    padding: 10px 14px;
    border-radius: 18px;
    font-size: 0.95rem;
    line-height: 1.4;
}
.message.sent .message-bubble { background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
.message.received .message-bubble { background: var(--bg-tertiary); color: var(--text-primary); border-bottom-left-radius: 4px; }
.message-image { max-width: 240px; border-radius: 12px; margin-bottom: 4px; }
.message-time { display: block; font-size: 0.7rem; opacity: 0.6; margin-top: 2px; }

.chat-form {
    display: flex;
    padding: 12px 16px;
    gap: 8px;
    border-top: 1px solid var(--border);
}
.chat-input {
    flex: 1;
    padding: 10px 16px;
    border-radius: 9999px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
}
.chat-input:focus { border-color: var(--border-focus); }
.chat-send {
    width: 40px;
    height: 40px;
    border-radius: 9999px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.chat-empty { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--text-muted); gap: 12px; }

/* Explore & Hashtag */
.trending-section { padding: 16px; border-bottom: 1px solid var(--border); }
.trending-section h2 { font-size: 1rem; font-weight: 700; margin-bottom: 12px; }
.hashtag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.hashtag-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 9999px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}
.hashtag-chip:hover { background: var(--accent); color: #fff; text-decoration: none; }
.hashtag-count { font-weight: 400; color: var(--text-muted); font-size: 0.8rem; }
.hashtag-chip:hover .hashtag-count { color: rgba(255,255,255,0.8); }
.hashtag-chip-large { padding: 12px 16px; font-size: 1rem; }
.hashtag-chip-large .hashtag-name { font-weight: 800; }
.hashtag-header { padding: 16px; border-bottom: 1px solid var(--border); }
.hashtag-header h1 { font-size: 1.3rem; }
.hashtag-header p { color: var(--text-secondary); }

.filter-bar { padding: 12px 16px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }

/* Search */
.search-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

/* Load More */
.load-more { text-align: center; padding: 20px; }

/* Ad Container */
.ad-container {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    text-align: center;
    background: var(--bg-secondary);
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ad-container:empty { display: none; }

/* Sidebar Ad */
.ad-sidebar {
    text-align: center;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.ad-sidebar:empty { display: none; }

/* Auth Pages */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.auth-container { width: 100%; max-width: 400px; }
.auth-card { background: var(--card-bg); padding: 32px; border-radius: var(--radius); box-shadow: var(--shadow); }
.auth-logo { text-align: center; margin-bottom: 24px; }
.auth-logo .logo-icon { font-size: 2rem; }
.auth-logo h1 { font-size: 1.5rem; font-weight: 800; margin-top: 8px; }
.auth-subtitle { color: var(--text-secondary); margin-top: 4px; }
.auth-form { margin-top: 20px; }
.auth-links { margin-top: 20px; text-align: center; display: flex; flex-direction: column; gap: 8px; }
.auth-links a { font-size: 0.9rem; }

/* Settings */
.settings-container { padding-bottom: 40px; }
.settings-section { padding: 20px 16px; border-bottom: 1px solid var(--border); }
.settings-section h2 { font-size: 1.1rem; font-weight: 700; margin-bottom: 16px; }
.settings-form { max-width: 480px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }

/* Theme Toggle */
.theme-toggle-wrap { display: flex; gap: 8px; }

/* Admin */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: 240px;
    background: var(--card-bg);
    border-right: 1px solid var(--border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    flex-shrink: 0;
}
.admin-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 16px 16px;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
    text-decoration: none;
}
.admin-nav { padding: 8px 0; }
.admin-nav-item {
    display: block;
    padding: 10px 16px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition);
}
.admin-nav-item:hover { background: var(--bg-hover); text-decoration: none; }
.admin-nav-item.active { background: var(--bg-tertiary); font-weight: 600; }
.admin-sidebar-footer { border-top: 1px solid var(--border); margin-top: 8px; padding-top: 8px; }

.admin-main { flex: 1; padding: 24px; overflow-y: auto; }
.admin-main h1 { font-size: 1.5rem; font-weight: 800; margin-bottom: 20px; }
.admin-main h2 { font-size: 1.1rem; font-weight: 700; margin: 20px 0 12px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
}
.stat-number { font-size: 2rem; font-weight: 800; }
.stat-label { color: var(--text-secondary); font-size: 0.9rem; margin-top: 4px; }
.stat-warning .stat-number { color: var(--warning); }
.stat-danger .stat-number { color: var(--danger); }

.admin-alert {
    background: rgba(255,173,31,0.1);
    border: 1px solid rgba(255,173,31,0.3);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}
.admin-alert a { color: var(--warning); font-weight: 600; }

.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.admin-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 20px; }
.admin-card h2 { margin-top: 0; }

.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.admin-table th { font-weight: 600; color: var(--text-secondary); font-size: 0.8rem; text-transform: uppercase; }
.admin-table.full-width { margin-top: 12px; }

.admin-toolbar { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }
.admin-sort { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; font-size: 0.85rem; }
.admin-sort span { color: var(--text-muted); margin-right: 4px; }
.sort-btn { padding: 6px 12px; border-radius: 9999px; color: var(--text-secondary); font-size: 0.85rem; font-weight: 600; transition: var(--transition); }
.sort-btn:hover { background: var(--bg-hover); text-decoration: none; }
.sort-btn.active { background: var(--accent); color: #fff; }
.admin-bulk-bar { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--bg-secondary); border-radius: var(--radius-sm); margin-bottom: 12px; font-size: 0.9rem; }
.admin-pagination { display: flex; align-items: center; justify-content: center; gap: 4px; padding: 20px; }
.pagination-dots { color: var(--text-muted); padding: 0 4px; }

.admin-modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.admin-modal-content {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow);
}

.table-avatar { width: 28px; height: 28px; border-radius: 9999px; object-fit: cover; vertical-align: middle; margin-right: 6px; }
.text-muted { color: var(--text-muted); }
.text-truncate { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.status-badge { padding: 2px 8px; border-radius: 9999px; font-size: 0.75rem; font-weight: 600; }
.status-active { background: rgba(0,186,124,0.15); color: var(--success); }
.status-pending { background: rgba(255,173,31,0.15); color: var(--warning); }
.status-banned { background: rgba(244,33,46,0.15); color: var(--danger); }

.admin-search { display: flex; gap: 8px; margin-bottom: 16px; }
.admin-search input { flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-primary); color: var(--text-primary); }
.admin-search input:focus { outline: none; border-color: var(--border-focus); }

.inline-form { display: inline-flex; align-items: center; gap: 6px; }
.input-sm { padding: 4px 8px; font-size: 0.8rem; border: 1px solid var(--border); border-radius: 4px; background: var(--bg-primary); color: var(--text-primary); width: 100px; }
.action-cell { display: flex; gap: 6px; flex-wrap: wrap; }
.bulk-actions { margin-top: 16px; }

/* Responsive */
@media (max-width: 768px) {
    .mobile-nav { display: flex; justify-content: space-around; }
    .top-nav .nav-search { display: none; }
    .nav-links .nav-link { display: none; }
    .nav-links .btn-outline, .nav-links .btn-primary { display: inline-flex; }
    .mobile-trending { display: block; }
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; height: auto; position: static; }
    .admin-nav { display: flex; overflow-x: auto; padding: 0; }
    .admin-nav-item { white-space: nowrap; }
    .admin-grid { grid-template-columns: 1fr; }
    .messages-sidebar { width: 100%; }
    .chat-area { display: none; }
    .chat-area.active { display: flex; }
    .messages-sidebar.hidden-mobile { display: none; }
    .profile-avatar { width: 80px; height: 80px; }
    .profile-avatar-wrap { top: -80px; }
    .profile-cover { height: 120px; }
    .profile-actions { margin-bottom: 24px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    body { padding-bottom: 60px; }
    .container { padding: 0 12px; }
}

@media (max-width: 480px) {
    .compose-box { padding: 12px; }
    .post { padding: 12px; }
    .post-images { border-radius: 12px; }
    .link-preview-image { width: 100px; }
    .message { max-width: 90%; }
}

/* Image Viewer */
.image-viewer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.9);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
.image-viewer img { max-width: 90vw; max-height: 90vh; object-fit: contain; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Two Column Layout */
.layout {
    display: flex;
    max-width: 1100px;
    margin: 0 auto;
}
.main-col {
    flex: 1;
    min-width: 0;
    max-width: 600px;
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
}

/* Sidebar */
.sidebar {
    width: 350px;
    flex-shrink: 0;
    padding: 12px 24px;
    position: sticky;
    top: 53px;
    height: calc(100vh - 53px);
    overflow-y: auto;
}
.sidebar-card {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 16px;
}
.sidebar-title {
    font-size: 1.2rem;
    font-weight: 800;
    padding: 16px 16px 12px;
}
.sidebar-empty {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding: 16px;
}
.sidebar-show-more {
    display: block;
    padding: 16px;
    color: var(--accent);
    font-size: 0.95rem;
    transition: var(--transition);
}
.sidebar-show-more:hover { background: var(--bg-hover); text-decoration: none; }

/* Trending */
.trending-list { display: flex; flex-direction: column; }
.trending-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-primary);
    transition: var(--transition);
}
.trending-item:hover { background: var(--bg-hover); text-decoration: none; }
.trending-rank {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    min-width: 16px;
    padding-top: 2px;
}
.trending-info { display: flex; flex-direction: column; gap: 2px; }
.trending-tag { font-weight: 700; font-size: 0.95rem; }
.trending-count { font-size: 0.8rem; color: var(--text-muted); }

/* Follow Suggestions */
.follow-suggestions { display: flex; flex-direction: column; }
.follow-suggestion {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    transition: var(--transition);
}
.follow-suggestion:hover { background: var(--bg-hover); }
.follow-suggestion-avatar img { width: 40px; height: 40px; border-radius: 9999px; object-fit: cover; }
.follow-suggestion-info { flex: 1; min-width: 0; }
.follow-suggestion-name {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 4px;
}
.follow-suggestion-username { font-size: 0.8rem; color: var(--text-muted); display: block; }
.follow-suggestion-bio { font-size: 0.8rem; color: var(--text-secondary); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Sidebar Footer */
.sidebar-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 12px;
    padding: 16px;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.sidebar-footer-links a { color: var(--text-muted); }
.sidebar-footer-links a:hover { text-decoration: underline; }
.sidebar-footer-links span { width: 100%; margin-top: 4px; }

/* Site Footer */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 20px;
}
.footer-inner { max-width: 1100px; margin: 0 auto; text-align: center; }
.footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 4px 16px; margin-bottom: 8px; }
.footer-links a { color: var(--text-muted); font-size: 0.85rem; }
.footer-links a:hover { text-decoration: underline; }
.footer-copy { color: var(--text-muted); font-size: 0.8rem; }

/* Modern Profile */
.profile-container { padding-bottom: 0; }
.profile-header { position: relative; overflow: hidden; }
.profile-cover {
    height: 200px;
    background: linear-gradient(135deg, var(--accent) 0%, #794bc4 50%, #f4212e 100%);
    overflow: hidden;
    position: relative;
}
.profile-cover img { width: 100%; height: 100%; object-fit: cover; }
.profile-cover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(transparent, var(--bg-primary));
}
.profile-info { padding: 16px 16px 16px; position: relative; }
.profile-avatar-wrap { position: absolute; top: -160px; left: 16px; transform: none; }
.profile-avatar {
    width: 134px; height: 134px;
    border-radius: 9999px;
    border: 4px solid var(--bg-primary);
    object-fit: cover;
    background: var(--bg-primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.profile-actions { display: flex; justify-content: flex-end; gap: 8px; margin-bottom: 20px; }
.profile-name { font-size: 1.3rem; font-weight: 800; display: flex; align-items: center; gap: 6px; margin-top: 8px; }
.profile-username { color: var(--text-secondary); font-size: 0.9rem; margin-top: 2px; }
.profile-bio { margin-top: 12px; line-height: 1.6; font-size: 0.95rem; }
.profile-meta { display: flex; gap: 16px; margin-top: 12px; color: var(--text-muted); font-size: 0.85rem; flex-wrap: wrap; }
.profile-meta span { display: flex; align-items: center; gap: 4px; }
.profile-stats { display: flex; gap: 20px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); }
.stat { color: var(--text-secondary); font-size: 0.9rem; }
.stat:hover { text-decoration: underline; }
.stat strong { color: var(--text-primary); font-weight: 700; }
.profile-tabs { display: flex; border-bottom: 1px solid var(--border); }
.profile-tab { flex: 1; text-align: center; padding: 16px; font-weight: 600; color: var(--text-secondary); transition: var(--transition); border-bottom: 3px solid transparent; font-size: 0.95rem; }
.profile-tab:hover { background: var(--bg-hover); text-decoration: none; }
.profile-tab.active { color: var(--text-primary); border-bottom-color: var(--accent); }

/* Responsive */
@media (max-width: 1100px) {
    .sidebar { width: 300px; padding: 12px 16px; }
    .layout { gap: 0; }
}

@media (max-width: 768px) {
    /* Mobile Nav */
    .mobile-nav { display: flex; justify-content: space-around; }
    body { padding-bottom: 60px; }

    /* Top Nav */
    .top-nav .nav-search { display: none; }
    .nav-links .btn { display: none; }
    .nav-links { gap: 2px; }
    .nav-link { width: 36px; height: 36px; }

    /* Layout */
    .layout { flex-direction: column; }
    .main-col { max-width: 100%; border: none; }
    .sidebar { display: none; }
    .container { padding: 0 12px; }

    /* Post */
    .post { padding: 10px 12px; gap: 10px; }
    .post-avatar img { width: 36px; height: 36px; }
    .post-header { font-size: 0.9rem; }
    .post-content { font-size: 0.95rem; }
    .post-actions { max-width: 100%; }
    .post-action { padding: 4px 6px; font-size: 0.75rem; }
    .post-action svg { width: 16px; height: 16px; }
    .post-images { border-radius: 12px; margin-top: 8px; }
    .post-content-link { font-size: 0.95rem; }

    /* Compose */
    .compose-box { padding: 10px 12px; }
    .compose-avatar img { width: 36px; height: 36px; }
    .compose-input { font-size: 1rem; min-height: 36px; }
    .compose-footer { padding-top: 8px; margin-top: 4px; }
    .compose-action { width: 32px; height: 32px; }
    .compose-action svg { width: 18px; height: 18px; }

    /* Profile */
    .profile-cover { height: 140px; }
    .profile-avatar-wrap { top: -50px; left: 12px; }
    .profile-avatar { width: 100px; height: 100px; border-width: 3px; }
    .profile-info { padding: 12px; }
    .profile-actions { margin-bottom: 16px; }
    .profile-name { font-size: 1.1rem; }
    .profile-bio { font-size: 0.9rem; }
    .profile-meta { gap: 12px; font-size: 0.8rem; }
    .profile-stats { gap: 16px; padding-top: 12px; margin-top: 12px; }
    .profile-tabs { font-size: 0.85rem; }
    .profile-tab { padding: 12px 8px; }
    .profile-roles { gap: 4px; }
    .role-chip { font-size: 0.75rem; padding: 3px 8px; }

/* Mobile Trending */
.mobile-trending {
    display: none;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}
.mobile-trending h3 {
    font-size: 14px;
    margin-bottom: 8px;
    color: var(--text-secondary);
}
.hashtag-scroll {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
}
.hashtag-scroll::-webkit-scrollbar { display: none; }

/* Feed Tabs */
    .feed-tabs { font-size: 0.9rem; }
    .feed-tab { padding: 12px; }

    /* Page Title */
    .page-title { font-size: 1.1rem; padding: 10px 12px; }

    /* Settings */
    .settings-layout { flex-direction: column; }
    .settings-nav {
        width: 100%; height: auto; position: static;
        display: flex; overflow-x: auto; border-right: none;
        border-bottom: 1px solid var(--border);
        -webkit-overflow-scrolling: touch;
    }
    .settings-nav-item {
        white-space: nowrap; border-left: none;
        border-bottom: 3px solid transparent;
        padding: 10px 14px; font-size: 0.85rem;
    }
    .settings-content { padding: 16px 12px; }
    .settings-content h1 { font-size: 1.2rem; }
    .settings-card { padding: 16px; }
    .settings-card h2 { font-size: 1rem; }
    .settings-row { grid-template-columns: 1fr; }
    .form-group input, .form-group textarea, .form-group select { font-size: 16px; }

    /* Admin */
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; height: auto; position: static; }
    .admin-nav { display: flex; overflow-x: auto; padding: 0; }
    .admin-nav-item { white-space: nowrap; font-size: 0.85rem; padding: 10px 12px; }
    .admin-main { padding: 12px; }
    .admin-grid { grid-template-columns: 1fr; }
    .admin-table { font-size: 0.8rem; }
    .admin-table th, .admin-table td { padding: 8px; }
    .admin-toolbar { flex-direction: column; gap: 8px; }
    .admin-sort { flex-wrap: wrap; }

    /* Messages */
    .messages-container { flex-direction: column; height: auto; }
    .messages-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); max-height: 50vh; }
    .chat-area { min-height: 50vh; }
    .chat-input { font-size: 16px; }
    .chat-messages { padding: 12px; }
    .message { max-width: 85%; }
    .message-bubble { font-size: 0.9rem; }

    /* Post Detail */
    .post-detail-header { padding: 10px 12px; }
    .post-detail-header h2 { font-size: 1.1rem; }
    .post-meta-detail { font-size: 0.8rem; flex-wrap: wrap; }
    .post-author-bar { padding: 10px 12px; }

    /* Auth */
    .auth-container { padding: 12px; }
    .auth-card { padding: 24px 16px; }
    .auth-logo h1 { font-size: 1.3rem; }
    .input-2fa { font-size: 1.3rem !important; letter-spacing: 6px; }

    /* Search */
    .search-tabs { font-size: 0.85rem; }
    .search-input { font-size: 16px; }

    /* Settings Roles Grid */
    .roles-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }

    /* Admin Modal */
    .admin-modal-content { width: 95%; padding: 16px; margin: 10px; }
    .admin-modal-content h3 { font-size: 1rem; }

    /* Stats Grid */
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .stat-card { padding: 12px; }
    .stat-number { font-size: 1.5rem; }

    /* Toast */
    .toast { bottom: 70px; font-size: 0.85rem; padding: 8px 16px; }

    /* Link Preview */
    .link-preview { flex-direction: column; }
    .link-preview-image { width: 100%; height: 150px; }
}

@media (max-width: 480px) {
    .post { padding: 10px; gap: 8px; }
    .compose-box { padding: 8px 10px; }
    .post-images { border-radius: 10px; }
    .link-preview-image { width: 100%; height: 120px; }
    .message { max-width: 88%; }
    .profile-cover { height: 120px; }
    .profile-avatar { width: 80px; height: 80px; }
    .profile-avatar-wrap { top: -40px; }
    .settings-content { padding: 12px 8px; }
    .admin-main { padding: 8px; }
    .admin-table { font-size: 0.75rem; }
    .admin-table th, .admin-table td { padding: 6px; }
    .roles-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
    .page-title { font-size: 1rem; padding: 8px 10px; }
    .post-detail-header { padding: 8px 10px; }
}

/* Auth extras */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 20px 0;
    color: var(--text-muted);
    font-size: 0.85rem;
}
.auth-divider::before, .auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}
.btn-google {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: 9999px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
}
.btn-google:hover { background: var(--bg-tertiary); text-decoration: none; }
.input-2fa {
    font-size: 1.5rem !important;
    letter-spacing: 8px;
    text-align: center;
    font-weight: 700;
    font-family: monospace;
}

/* 2FA Setup */
.twofa-setup {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    flex-wrap: wrap;
}
.twofa-qr {
    background: #fff;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--border);
}
.twofa-secret { flex: 1; min-width: 200px; }
.twofa-key {
    display: block;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 2px;
    word-break: break-all;
    font-family: monospace;
}

/* Post detail extras */
.post-meta-detail {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}
.post-meta-views { margin-left: auto; }
.post-author-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}
.post-author-bar-info {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}
.post-author-bar-info:hover { text-decoration: none; }
.post-author-bar-avatar { width: 40px; height: 40px; border-radius: 9999px; object-fit: cover; }
.post-author-bar-name { font-weight: 700; display: block; font-size: 0.95rem; }
.post-author-bar-username { font-size: 0.85rem; color: var(--text-muted); }

/* Toast */
.toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--accent);
    color: #fff;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 9999;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Dropdown divider */
.dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}
.nav-logo .site-logo {
    height: 35px; /* İhtiyaca göre 30px-45px arası idealdir */
    width: auto;
    display: block;
}
@media (max-width: 768px) {
    .nav-logo .site-logo {
        height: 30px; /* Mobilde biraz daha küçük isterseniz */
    }
}