/* ===== mem0-inspired Dark Layout ===== */

/* -- Global Dark: Override CSS variables for dark theme -- */
html.dark {
    --primary-50: rgba(48,209,88,0.06);
    --primary-100: rgba(48,209,88,0.1);
    --primary-200: rgba(48,209,88,0.15);
    --primary-300: #30D158;
    --primary-400: #30D158;
    --primary-500: #30D158;
    --primary-600: #30D158;
    --primary-700: #5ae07a;
    --primary-800: #5ae07a;
    --primary-900: #5ae07a;
    --gray-50: #0d0d0d;
    --gray-100: #111;
    --gray-200: rgba(255,255,255,0.06);
    --gray-300: rgba(255,255,255,0.1);
    --gray-400: #666;
    --gray-500: #555;
    --gray-600: rgba(255,255,255,0.08);
    --gray-700: #111;
    --gray-800: #0a0a0a;
    --gray-900: #ededed;
    --accent-green: #30D158;
    --accent-red: #ff453a;
    --accent-yellow: #FFD60A;
    --accent-purple: #BF5AF2;
    --sidebar-width: 160px;
}

/* -- Top Bar (transparent, same layer as sidebar) -- */
.vk-topnav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 1001; height: 48px;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 1.25rem 0 0;
    background: transparent;
    border-bottom: none;
}
.vk-topnav-left {
    display: flex; align-items: center; gap: 0; min-width: 0;
}
.vk-topnav-logo {
    display: flex; align-items: center; gap: 0.5rem;
    text-decoration: none; flex-shrink: 0;
    width: 160px; padding: 0 0.75rem;
    height: 48px;
}
.vk-topnav-logo:hover { text-decoration: none; }
.vk-topnav-logo-icon {
    width: 26px; height: 26px; border-radius: 6px; flex-shrink: 0;
    object-fit: cover;
}
.vk-topnav-logo-text { font-size: 12.5px; font-weight: 600; color: var(--t-text); letter-spacing: -0.02em; }
.vk-topnav-links { display: none; }
.vk-topnav-right {
    display: flex; align-items: center; gap: 0.35rem; flex-shrink: 0;
}
.vk-topnav-lang-btn {
    padding: 0.2rem 0.45rem; font-size: 11px; font-weight: 600;
    color: var(--t-text-dimmer); background: transparent;
    border: 1px solid var(--t-border); border-radius: 5px;
    cursor: pointer; transition: all 0.15s; letter-spacing: 0.02em;
}
.vk-topnav-lang-btn:hover { color: var(--t-text); border-color: var(--t-border-hover); }
.vk-topnav-icon-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 28px; height: 28px; font-size: 14px;
    color: var(--t-text-dimmer); background: transparent;
    border: none; border-radius: 6px;
    cursor: pointer; transition: all 0.15s;
    text-decoration: none;
}
.vk-topnav-icon-btn:hover { color: var(--t-text); background: var(--t-bg-hover); text-decoration: none; }
.vk-sub-badge {
    display: inline-flex; align-items: center; gap: 0.3rem;
    padding: 0.2rem 0.6rem; font-size: 10px; font-weight: 600;
    border-radius: 10px; cursor: pointer; transition: all 0.2s;
    text-decoration: none; letter-spacing: 0.02em; border: none;
}
.vk-sub-badge:hover { transform: translateY(-1px); text-decoration: none; filter: brightness(1.1); }
.vk-sub-badge.sub-free {
    color: var(--t-text-muted); background: var(--t-bg-hover);
    border: none;
}
.vk-sub-badge.sub-free:hover { color: var(--t-text); background: var(--t-bg-active); }
.vk-sub-badge.sub-premium {
    color: #fff; background: linear-gradient(135deg, #f59e0b, #d97706);
    box-shadow: 0 1px 4px rgba(245,158,11,0.3);
}
.vk-sub-badge.sub-ultra {
    color: #fff; background: linear-gradient(135deg, #a78bfa, #7c3aed);
    box-shadow: 0 1px 4px rgba(167,139,250,0.3);
}
.vk-sub-badge.sub-lifetime {
    color: #fff; background: linear-gradient(135deg, #34d399, #059669);
    box-shadow: 0 1px 4px rgba(52,211,153,0.3);
}
.vk-sub-badge i { font-size: 10px; }
.vk-topnav-icon-btn {
    position: relative;
    width: 32px; height: 32px; border-radius: 6px; border: none;
    background: transparent; color: var(--t-text-dimmer);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; font-size: 13px; transition: all 0.12s;
}
.vk-topnav-icon-btn:hover { color: var(--t-text); background: var(--t-bg-hover); }
.vk-topnav-avatar {
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--t-text-muted); color: var(--t-bg);
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 600; cursor: pointer; border: 2px solid transparent;
    transition: all 0.15s;
}
.vk-topnav-avatar:hover { opacity: 0.85; }
.vk-topnav-avatar.avatar-lifetime { background: #30D158; border-color: #30D158; color: #fff; }
.vk-topnav-avatar.avatar-ultra { background: #BF5AF2; border-color: #BF5AF2; color: #fff; }
.vk-topnav-avatar.avatar-premium { background: #0A84FF; border-color: #0A84FF; color: #fff; }
.vk-topnav-avatar.avatar-free { background: var(--t-text-muted); border-color: transparent; }

/* -- Sidebar (Linear-inspired, compact) -- */
.sidebar {
    display: flex !important; visibility: visible !important;
    opacity: 1 !important; transform: none !important;
    width: 160px !important; position: fixed !important;
    top: 48px !important; left: 0 !important;
    height: calc(100vh - 48px) !important;
    background: var(--t-bg) !important;
    border-right: none !important;
    flex-direction: column !important;
    overflow-y: auto !important; z-index: 998 !important;
    padding: 0 !important;
}
.sidebar::-webkit-scrollbar { width: 0; }
.sidebar.hidden { display: flex !important; transform: none !important; }
.sidebar-header { display: none !important; }
.sidebar-edge-toggle { display: none !important; }
.sidebar-controls { display: none !important; }

.sidebar-menu { flex: 1; padding: 0.6rem 0.5rem !important; }
.sidebar-menu nav { display: flex; flex-direction: column; gap: 1px; }

.menu-category {
    font-size: 9.5px !important; font-weight: 500 !important;
    text-transform: uppercase !important; letter-spacing: 0.06em !important;
    color: var(--t-text-dimmer) !important; padding: 1rem 0.6rem 0.35rem !important;
    margin: 0 !important; background: none !important; border: none !important;
}
.menu-category:first-child { padding-top: 0 !important; }
.menu-list {
    list-style: none !important; padding: 0 !important; margin: 0 !important;
}
.menu-item { margin: 0 !important; }
.menu-link {
    display: flex !important; align-items: center !important; gap: 0.45rem !important;
    padding: 0.35rem 0.6rem !important; font-size: 11.5px !important;
    color: var(--t-text-secondary) !important; border-radius: 5px !important;
    text-decoration: none !important;
    transition: color 0.12s, background 0.12s !important;
    background: transparent !important; border: none !important;
    font-weight: 400 !important;
    position: relative !important;
}
.menu-link:hover {
    color: var(--t-text) !important;
    background: var(--t-bg-hover) !important;
    text-decoration: none !important;
}
.menu-link.active {
    color: var(--t-text) !important;
    background: var(--t-bg-active) !important;
    font-weight: 500 !important;
}
.menu-link.active::before {
    content: '' !important;
    position: absolute !important;
    left: 0 !important; top: 50% !important;
    transform: translateY(-50%) !important;
    width: 2px !important; height: 16px !important;
    background: var(--t-text) !important;
    border-radius: 1px !important;
}
.menu-icon {
    font-size: 14px !important; width: 16px !important;
    text-align: center !important; color: inherit !important;
    opacity: 0.6;
    flex-shrink: 0 !important;
}
.menu-link:hover .menu-icon { opacity: 0.85; }
.menu-link.active .menu-icon { opacity: 1; }

/* Sidebar bottom links (Docs/Feedback) - mem0 style */
.sidebar-bottom-links {
    padding: 0.5rem 0.5rem !important;
    margin-top: auto !important;
    border-top: none !important;
}

/* Sidebar quota - hidden */
.quota-display-compact { display: none !important; }

/* Sidebar footer */
.sidebar-footer {
    padding: 0.75rem !important; margin: 0 !important;
    border-top: none !important;
    background: transparent !important;
}
.sidebar-footer .d-flex { flex-direction: column !important; gap: 0.25rem !important; }
.sidebar-footer .user-dropdown { display: none !important; }
.sidebar-footer .dropdown { display: none !important; }
.feedback-btn { display: none !important; }
.feedback-badge { display: none !important; }

/* -- Sidebar collapse toggle -- */
.vk-collapse-btn {
    position: relative;
    width: 28px; height: 28px; border-radius: 6px; border: none;
    background: transparent; color: var(--t-text-dimmer); display: flex; align-items: center; justify-content: center;
    cursor: pointer; font-size: 14px; transition: all 0.12s; margin-left: 0.5rem; flex-shrink: 0;
}
.vk-collapse-btn:hover { color: var(--t-text); background: var(--t-bg-hover); }

/* Sidebar collapsed state */
body.sidebar-collapsed .sidebar { width: 52px !important; }
body.sidebar-collapsed .sidebar .menu-category { display: none !important; }
body.sidebar-collapsed .sidebar .menu-link span { display: none !important; }
body.sidebar-collapsed .sidebar .menu-link { justify-content: center !important; padding: 0.5rem !important; }
body.sidebar-collapsed .sidebar .menu-link.active::before { display: none !important; }
body.sidebar-collapsed .sidebar .menu-icon { margin: 0 !important; width: auto !important; font-size: 17px !important; }
body.sidebar-collapsed .sidebar .sidebar-footer { display: none !important; }
body.sidebar-collapsed .sidebar .sidebar-bottom-links { border-top: none !important; padding: 0.5rem 0.35rem !important; }
body.sidebar-collapsed .sidebar .sidebar-bottom-links .menu-link span { display: none !important; }
body.sidebar-collapsed .sidebar .sidebar-bottom-links .menu-link { justify-content: center !important; padding: 0.5rem !important; }
body.sidebar-collapsed .sidebar .sidebar-bottom-links .menu-icon { margin: 0 !important; width: auto !important; font-size: 17px !important; }
body.sidebar-collapsed .sidebar .sidebar-menu { padding: 0.5rem 0.35rem !important; }
body.sidebar-collapsed .content {
    margin-left: 52px !important; width: calc(100% - 52px) !important;
}
body.sidebar-collapsed .vk-topnav-logo {
    width: 52px !important; padding: 0 !important; justify-content: center !important; border: none !important;
}
body.sidebar-collapsed .vk-topnav-logo-text { display: none !important; }
body.sidebar-collapsed .vk-collapse-btn i::before { content: "\F285" !important; }

/* -- Mobile Header -- */
.mobile-header { display: none !important; }
.overlay { display: none !important; }
.sidebar-show-btn { display: none !important; }

/* -- Content Area (floating card on top of base layer) -- */
.content {
    margin-left: 160px !important; width: calc(100% - 160px) !important;
    padding-top: 48px !important;
    height: 100vh !important;
    transition: margin-left 0.2s ease, width 0.25s ease, right 0.25s ease !important;
    position: fixed !important; top: 0 !important; right: 0 !important;
    z-index: 999 !important;
    background: transparent !important;
    overflow: hidden !important;
}
.content-inner {
    background: var(--t-bg-card, #fff) !important; color: var(--t-text) !important;
    max-width: 100% !important; padding: 1.75rem 2rem !important;
    border-top-left-radius: 14px !important;
    border-bottom-left-radius: 14px !important;
    height: calc(100vh - 48px) !important;
    overflow-y: auto !important;
    box-shadow: -2px 0 24px rgba(0,0,0,0.06) !important;
}

/* -- Hide topnav/sidebar on special pages -- */
body:has(.home-page) > .vk-topnav, 
body:has(.vk-auth-page) > .vk-topnav, 
body:has(.vk-legal-page) > .vk-topnav { display: none !important; }
body:has(.home-page) .sidebar, 
body:has(.vk-auth-page) .sidebar, 
body:has(.vk-legal-page) .sidebar { display: none !important; }
body:has(.home-page) > .vk-mobile-sidebar-toggle,
body:has(.vk-auth-page) > .vk-mobile-sidebar-toggle,
body:has(.vk-legal-page) > .vk-mobile-sidebar-toggle { display: none !important; }
body:has(.home-page) > .vk-mobile-overlay,
body:has(.vk-auth-page) > .vk-mobile-overlay,
body:has(.vk-legal-page) > .vk-mobile-overlay { display: none !important; }
body:has(.home-page) .content, 
body:has(.vk-auth-page) .content, 
body:has(.vk-legal-page) .content {
    position: relative !important; top: auto !important; right: auto !important;
    padding-top: 0 !important; margin-left: 0 !important; width: 100% !important;
    height: auto !important; overflow: visible !important;
    border-radius: 0 !important; box-shadow: none !important;
}
body:has(.home-page) .content-inner, 
body:has(.vk-auth-page) .content-inner, 
body:has(.vk-legal-page) .content-inner {
    border-radius: 0 !important; box-shadow: none !important;
    height: auto !important; overflow-y: visible !important;
    min-height: auto !important;
}

/* -- Dark Dropdown (user menu) -- */
.vk-dropdown {
    background: var(--t-bg-secondary) !important; border: 1px solid var(--t-border-hover) !important;
    border-radius: 10px !important; padding: 0.35rem !important;
    min-width: 200px; box-shadow: 0 8px 30px rgba(0,0,0,0.15) !important;
}
.vk-dropdown .dropdown-item { color: var(--t-text-muted) !important; font-size: 11px !important; padding: 0.35rem 0.75rem !important; border-radius: 6px; transition: all 0.15s; }
.vk-dropdown .dropdown-item:hover { color: var(--t-text) !important; background: var(--t-bg-active) !important; }
.vk-dropdown .dropdown-item i { margin-right: 0.5rem; font-size: 12px; }
.vk-dropdown .dropdown-divider { display: none !important; }
.vk-dropdown .dropdown-header { padding: 0.3rem 0.75rem !important; }
.vk-dropdown .dropdown-avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--t-text-muted); color: var(--t-bg); display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 600; }
.vk-dropdown .dropdown-user-details { margin-left: 0.5rem; }
.vk-dropdown .dropdown-username { color: var(--t-text); font-weight: 600; font-size: 11px !important; }
.vk-dropdown .dropdown-user-status { color: #30D158; font-size: 10px; }
.vk-dropdown .dropdown-user-info { display: flex; align-items: center; }
.vk-dropdown .logout-item { color: var(--t-text-muted) !important; }
.vk-dropdown .logout-item:hover { background: var(--t-bg-active) !important; color: var(--t-text) !important; }

/* Theme toggle buttons in dropdown */
.vk-theme-btn {
    width: 26px; height: 24px; border-radius: 5px; border: none;
    background: transparent; color: var(--t-text-dimmer); display: flex; align-items: center; justify-content: center;
    cursor: pointer; font-size: 12px; transition: all 0.15s;
}
.vk-theme-btn:hover { color: var(--t-text); background: var(--t-bg-hover); }
.vk-theme-btn.active { color: var(--t-text); background: var(--t-bg-active); }

/* -- Feedback Dropdown -- */
.vk-feedback-wrap { position: relative; }
.vk-feedback-dropdown { display: none; position: absolute; top: calc(100% + 8px); right: 0; width: 340px; background: var(--t-bg-secondary); border: 1px solid var(--t-border-hover); border-radius: 12px; padding: 1rem; box-shadow: 0 12px 40px rgba(0,0,0,0.6); z-index: 2000; }
.vk-feedback-dropdown.show { display: block; }
.vk-feedback-select { width: 100%; padding: 0.5rem 0.75rem; background: var(--t-bg); color: var(--t-text-muted); border: 1px solid var(--t-border-hover); border-radius: 8px; font-size: 13px; margin-bottom: 0.5rem; outline: none; }
.vk-feedback-select:focus { border-color: var(--t-border-hover); color: var(--t-text); }
.vk-feedback-select option { background: var(--t-bg-secondary); color: #fff; }
.vk-feedback-textarea { width: 100%; min-height: 100px; padding: 0.6rem 0.75rem; background: var(--t-bg); color: #fff; border: 1px solid var(--t-border-hover); border-radius: 8px; font-size: 13px; resize: vertical; font-family: inherit; outline: none; }
.vk-feedback-textarea:focus { border-color: rgba(255,255,255,0.3); }
.vk-feedback-textarea::placeholder { color: var(--t-text-muted); }
.vk-feedback-actions { display: flex; align-items: center; justify-content: space-between; margin-top: 0.6rem; }
.vk-feedback-emojis { display: flex; gap: 0.35rem; }
.vk-feedback-emoji { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--t-border-hover); background: transparent; font-size: 16px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.15s; }
.vk-feedback-emoji:hover, .vk-feedback-emoji.selected { border-color: rgba(255,255,255,0.4); background: var(--t-bg-active); }
.vk-feedback-send { padding: 0.4rem 1rem; background: white; color: black; border: none; border-radius: 6px; font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.15s; }
.vk-feedback-send:hover { background: #ccc; }