:root {
            --bg-main: #0f172a;
            --bg-card: #1e293b;
            --bg-subCard: #0f172a;
            --border-color: #334155;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --brand: #3b82f6;
            --brand-hover: #2563eb;
            --accent: #10b981;
            --danger: #ef4444;
            --danger-bg: rgba(239, 68, 68, 0.12);
            --danger-border: rgba(239, 68, 68, 0.3);
            --amber: #f59e0b;
            --amber-bg: rgba(245, 158, 11, 0.12);
            --amber-border: rgba(245, 158, 11, 0.3);
            --emerald-bg: rgba(16, 185, 129, 0.12);
            --emerald-border: rgba(16, 185, 129, 0.3);
            --radius-lg: 16px;
            --radius-md: 10px;
        }

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

        body {
            font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            min-height: 100vh;
            padding-bottom: 3rem;
        }

        /* Top Navbar */
        .navbar {
            border-bottom: 1px solid var(--border-color);
            background-color: rgba(30, 41, 59, 0.8);
            backdrop-filter: blur(8px);
            position: sticky;
            top: 0;
            z-index: 50;
        }

        .navbar-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0.85rem 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .brand-logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .brand-logo i { color: var(--brand); }
        .brand-logo span span { color: var(--brand); }

        /* Page Layout */
        .container {
            max-width: 1100px;
            margin: 2rem auto 0;
            padding: 0 1rem;
        }

        .grid-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 1024px) {
            .grid-layout {
                grid-template-columns: 320px 1fr;
            }
        }

        /* Cards */
        .card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            position: relative;
            overflow: hidden;
        }

        .card-top-bar {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(to right, var(--brand), var(--accent));
        }

        /* Alert Banners */
        .alert {
            padding: 1rem;
            border-radius: var(--radius-md);
            font-size: 0.875rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .alert-amber {
            background-color: var(--amber-bg);
            border: 1px solid var(--amber-border);
            color: #fcd34d;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .alert-emerald {
            background-color: var(--emerald-bg);
            border: 1px solid var(--emerald-border);
            color: #6ee7b7;
        }

        .alert-danger {
            background-color: var(--danger-bg);
            border: 1px solid var(--danger-border);
            color: #fca5a5;
        }

        .alert-success {
            background-color: var(--emerald-bg);
            border: 1px solid var(--emerald-border);
            color: #6ee7b7;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.6rem 1rem;
            border-radius: var(--radius-md);
            font-size: 0.875rem;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.2s ease;
            text-decoration: none;
            font-family: inherit;
        }

        .btn-brand { background-color: var(--brand); color: #fff; width: 100%; }
        .btn-brand:hover { background-color: var(--brand-hover); }

        .btn-amber { background-color: var(--amber); color: #0f172a; }
        .btn-amber:hover { background-color: #d97706; }

        .btn-danger { background-color: var(--danger-bg); color: var(--danger); border: 1px solid var(--danger-border); width: 100%; }
        .btn-danger:hover { background-color: var(--danger); color: #fff; }

        .btn-secondary { background-color: var(--bg-subCard); color: var(--text-main); border: 1px solid var(--border-color); width: 100%; }
        .btn-secondary:hover { background-color: var(--border-color); }

        .btn-disabled { background-color: #334155; color: #64748b; cursor: not-allowed; width: 100%; }

        .btn-sm { padding: 0.4rem 0.75rem; font-size: 0.75rem; width: auto; }

        /* Sidebar Elements */
        .avatar-img {
            width: 110px;
            height: 110px;
            border-radius: 50%;
            object-fit: cover;
            border: 3px solid var(--brand);
            background-color: #0f172a;
            margin: 0 auto 1rem;
            display: block;
        }

        .user-title { font-size: 1.25rem; font-weight: 700; text-align: center; }
        .user-username { color: var(--text-muted); font-size: 0.875rem; text-align: center; margin-bottom: 0.75rem; }

        .badge-status {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            margin: 0 auto 1rem;
        }

        .badge-verified { background-color: var(--emerald-bg); color: var(--accent); border: 1px solid var(--emerald-border); }
        .badge-unverified { background-color: var(--danger-bg); color: var(--danger); border: 1px solid var(--danger-border); }

        .sidebar-details {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            font-size: 0.875rem;
            margin: 1rem 0;
            padding-top: 1rem;
            border-top: 1px solid var(--border-color);
        }

        .sidebar-detail-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-main);
            word-break: break-all;
        }

        .sidebar-detail-item i { color: var(--text-muted); width: 18px; text-align: center; }

        /* Section Headings */
        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }

        .section-title {
            font-size: 1.1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .section-title i { color: var(--brand); }

        /* Sub Cards & Items */
        .item-card {
            background-color: rgba(15, 23, 42, 0.6);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1rem;
            margin-bottom: 0.75rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .item-info h4 { font-size: 0.9rem; font-weight: 600; color: #38bdf8; margin-bottom: 0.25rem; }
        .item-meta { font-size: 0.75rem; color: var(--text-muted); display: flex; gap: 0.75rem; flex-wrap: wrap; }

        /* Grid Cards (Security & Sessions) */
        .grid-two {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1rem;
        }

        .box-info {
            background-color: rgba(15, 23, 42, 0.6);
            border: 1px solid var(--border-color);
            padding: 1rem;
            border-radius: var(--radius-md);
        }

        .box-label { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.25rem; }
        .box-value { font-size: 0.9rem; font-weight: 600; word-break: break-all; }

        /* Public Visitor Box */
        .public-notice {
            text-align: center;
            padding: 3rem 1.5rem;
        }

        .public-notice-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: rgba(59, 130, 246, 0.15);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.5rem;
        }

        /* Utilities */
        .opacity-50 { opacity: 0.5; }
        .cursor-not-allowed { cursor: not-allowed !important; }
        .pointer-events-none { pointer-events: none !important; }
        .w-full { width: 100%; }
        .text-link { color: var(--brand); text-decoration: none; }
        .text-link:hover { text-decoration: underline; }