:root {
            --bg: #07090e;
            --card-bg: rgba(18, 22, 34, 0.75);
            --primary: #00f2fe;
            --secondary: #4facfe;
            --accent: #6366f1;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --border: rgba(255, 255, 255, 0.08);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Plus Jakarta Sans', sans-serif; }
        body {
            background-color: var(--bg);
            background-image: 
                radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
                radial-gradient(at 100% 100%, rgba(0, 242, 254, 0.12) 0px, transparent 50%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        .login-card {
            background: var(--card-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 40px;
            width: 100%;
            max-width: 420px;
            box-shadow: 0 20px 40px -15px rgba(0,0,0,0.7);
        }
        .login-card h2 {
            font-size: 26px;
            font-weight: 800;
            background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-align: center;
            margin-bottom: 8px;
        }
        .login-card p { color: var(--text-muted); font-size: 14px; text-align: center; margin-bottom: 25px; }
        .form-group { margin-bottom: 18px; }
        label { display: block; font-size: 13px; font-weight: 600; color: var(--text-muted); margin-bottom: 6px; }
        input {
            width: 100%;
            padding: 14px 16px;
            background: rgba(10, 14, 23, 0.6);
            border: 1px solid var(--border);
            border-radius: 12px;
            color: #fff;
            font-size: 15px;
            transition: all 0.2s;
        }
        input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 15px rgba(0, 242, 254, 0.25); }
        .btn-login {
            width: 100%;
            padding: 14px;
            margin-top: 10px;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
            border: none;
            border-radius: 12px;
            color: #040814;
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            transition: 0.3s;
        }
        .btn-login:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0, 242, 254, 0.3); }
        .error { background: rgba(239, 68, 68, 0.15); border: 1px solid rgba(239, 68, 68, 0.3); color: #fca5a5; padding: 12px; border-radius: 10px; margin-bottom: 15px; font-size: 13px; text-align: center; }
    

        :root {
            --bg: #090c10;
            --surface: rgba(17, 24, 39, 0.7);
            --surface-hover: rgba(31, 41, 55, 0.7);
            --border: rgba(255, 255, 255, 0.08);
            --primary: #38bdf8;
            --primary-glow: rgba(56, 189, 248, 0.15);
            --accent: #818cf8;
            --success: #34d399;
            --warning: #fbbf24;
            --danger: #f87171;
            --text-main: #f1f5f9;
            --text-muted: #94a3b8;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Plus Jakarta Sans', sans-serif; }
        body {
            background-color: var(--bg);
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(56, 189, 248, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(129, 140, 248, 0.08) 0%, transparent 40%);
            color: var(--text-main);
            padding: 24px;
            min-height: 100vh;
        }

        .container { max-width: 1200px; margin: 0 auto; display: flex; flex-direction: column; gap: 24px; }

        /* Navbar */
        .navbar {
            background: var(--surface);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border);
            padding: 16px 24px;
            border-radius: 18px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .navbar .logo { font-size: 18px; font-weight: 800; color: #fff; letter-spacing: 0.5px; }
        .navbar .logo span { color: var(--primary); }
        .user-nav { display: flex; align-items: center; gap: 14px; }
        .badge {
            padding: 5px 12px;
            border-radius: 9999px;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .badge-admin { background: rgba(248, 113, 113, 0.15); color: var(--danger); border: 1px solid rgba(248, 113, 113, 0.3); }
        .badge-user { background: rgba(56, 189, 248, 0.15); color: var(--primary); border: 1px solid rgba(56, 189, 248, 0.3); }
        .btn-logout {
            background: transparent;
            color: var(--text-muted);
            border: 1px solid var(--border);
            padding: 6px 14px;
            border-radius: 10px;
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.2s;
        }
        .btn-logout:hover { background: rgba(248, 113, 113, 0.1); color: var(--danger); border-color: var(--danger); }

        /* Stats Cards */
        .grid-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
        .stat-card {
            background: var(--surface);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border);
            padding: 22px;
            border-radius: 18px;
            position: relative;
            overflow: hidden;
        }
        .stat-card::after {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }
        .stat-label { font-size: 13px; font-weight: 600; color: var(--text-muted); margin-bottom: 8px; }
        .stat-val { font-size: 28px; font-weight: 800; color: #fff; }
        .stat-sub { font-size: 12px; color: var(--text-muted); margin-top: 6px; }

        /* Panels Layout */
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
        .card {
            background: var(--surface);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border);
            padding: 24px;
            border-radius: 18px;
        }
        .card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
        }

        /* Form Elemanları */
        label { font-size: 13px; font-weight: 600; color: var(--text-muted); display: block; margin-bottom: 6px; }
        input, select, textarea {
            width: 100%;
            padding: 12px 14px;
            background: rgba(10, 14, 23, 0.5);
            border: 1px solid var(--border);
            border-radius: 10px;
            color: #fff;
            font-size: 14px;
            margin-bottom: 14px;
            outline: none;
            transition: border-color 0.2s;
        }
        textarea { height: 160px; resize: vertical; font-family: monospace; }
        input:focus, select:focus, textarea:focus { border-color: var(--primary); }
        .btn-submit {
            width: 100%;
            padding: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            border: none;
            border-radius: 10px;
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            cursor: pointer;
            transition: 0.2s;
        }
        .btn-submit:hover { opacity: 0.95; transform: translateY(-1px); }

        /* Tablolar */
        .table-responsive { width: 100%; overflow-x: auto; }
        table { width: 100%; border-collapse: collapse; text-align: left; }
        th { font-size: 12px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; padding: 12px 14px; border-bottom: 1px solid var(--border); }
        td { font-size: 13px; padding: 14px; border-bottom: 1px solid var(--border); }
        tr:hover td { background: rgba(255, 255, 255, 0.02); }

        .btn-sm-del {
            background: rgba(248, 113, 113, 0.1);
            color: var(--danger);
            border: 1px solid rgba(248, 113, 113, 0.3);
            padding: 4px 10px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 12px;
            font-weight: 600;
        }
        .btn-sm-edit {
            background: rgba(251, 191, 36, 0.1);
            color: var(--warning);
            border: 1px solid rgba(251, 191, 36, 0.3);
            padding: 4px 10px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 12px;
            font-weight: 600;
        }

        @media (max-width: 850px) {
            .grid-2 { grid-template-columns: 1fr; }
            body { padding: 15px; }
        }