.main-content {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: calc(100vh - 80px);
        /* Üst ve alt boşluklara göre ayarlanabilir */
        background-color: #0f172a;
    }

    .login-box {
        background-color: #1e293b;
        padding: 40px;
        border-radius: 8px;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        width: 100%;
        max-width: 400px;
        border: 1px solid #334155;
    }

    .login-header {
        text-align: center;
        margin-bottom: 30px;
    }

    .login-logo {
        height: 40px;
        margin-bottom: 15px;
    }

    .login-header h2 {
        color: #e2e8f0;
        font-size: 24px;
        margin: 0 0 5px 0;
    }

    .login-header p {
        color: #94a3b8;
        font-size: 14px;
        margin: 0;
    }

    .form-group {
        margin-bottom: 0px;
    }

    .form-group label {
        display: block;
        color: #cbd5e1;
        margin-bottom: 8px;
        font-size: 14px;
    }

    .form-group input {
        width: 100%;
        padding: 12px;
        background-color: #0f172a;
        border: 1px solid #334155;
        border-radius: 6px;
        color: #e2e8f0;
        font-size: 16px;
        box-sizing: border-box;
    }

    .form-group input:focus {
        outline: none;
        border-color: #3b82f6;
        box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.4);
    }

    .form-group-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 0px;
        font-size: 13px;
    }

    .checkbox-wrapper {
        display: flex;
        align-items: center;
    }

    .checkbox-wrapper input[type="checkbox"] {
        margin-right: 8px;
        width: 26px;
    }

    .checkbox-wrapper label {
        color: #cbd5e1;
        margin: 0;
    }

    .login-button {
        width: 100%;
        padding: 14px;
        background-color: #3b82f6;
        border: none;
        border-radius: 6px;
        color: white;
        font-size: 16px;
        font-weight: bold;
        cursor: pointer;
        transition: background-color 0.2s;
    }

    .login-button:hover {
        background-color: #2563eb;
    }